diff --git a/.gitignore b/.gitignore
index cf83f7c..989020c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -12,4 +12,7 @@
 # Clion folders and files
 cmake-build-debug/
 .idea/
-CMakeLists.txt
\ No newline at end of file
+CMakeLists.txt
+
+# FreeFileSync files
+*.ffs_db
diff --git a/2025.03.07/10Ex/solve.c b/2025.03.07/10Ex/solve.c
index cfd6ce8..d7f4536 100644
--- a/2025.03.07/10Ex/solve.c
+++ b/2025.03.07/10Ex/solve.c
@@ -3,13 +3,11 @@
 
 void matrix_multiply(const double *A, const double *B, double *c, int n, int m, int l)
 {
-	int i, j, k, index;
+	int i, j, k;
 	for (i = 0; i < n; i++)
-		for (j = 0; j < l; j++)
+		for (k = 0; k < m; k++)
 		{
-			index = i * l + j;
-			c[index] = 0;
-			for (k = 0; k < m; k++)
-				c[index] += A[i * m + k] * B[k * l + j];
+			for (j = 0; j < l; j++)
+				c[i * l + j] += A[i * m + k] * B[k * l + j];
 		}
 }
diff --git a/2025.03.07/Linux/solve.c b/2025.03.07/Linux/solve.c
index 9ae6a1f..720ca76 100644
--- a/2025.03.07/Linux/solve.c
+++ b/2025.03.07/Linux/solve.c
@@ -101,13 +101,11 @@ void t9_solve(const double *A, const double *b, double *c, int n, int m)
 
 void matrix_multiply(const double *A, const double *B, double *c, int n, int m, int l)
 {
-	int i, j, k, index;
+	int i, j, k;
 	for (i = 0; i < n; i++)
-		for (j = 0; j < l; j++)
+		for (k = 0; k < m; k++)
 		{
-			index = i * l + j;
-			c[index] = 0;
-			for (k = 0; k < m; k++)
-				c[index] += A[i * m + k] * B[k * l + j];
+			for (j = 0; j < l; j++)
+				c[i * l + j] += A[i * m + k] * B[k * l + j];
 		}
 }
diff --git a/2025.03.14/1Ex/Makefile b/2025.03.14/1Ex/Makefile
new file mode 100644
index 0000000..25150b6
--- /dev/null
+++ b/2025.03.14/1Ex/Makefile
@@ -0,0 +1,19 @@
+FLAGS = -fstack-protector-all -W -Wall -Wextra -Wunused -Wcast-align -Werror -pedantic -pedantic-errors -Wfloat-equal -Wpointer-arith -Wformat-security -Wmissing-format-attribute -Wformat=1 -Wwrite-strings -Wcast-align -Wno-long-long -std=gnu99 -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wdeclaration-after-statement -Wbad-function-cast -Wnested-externs -O3
+
+a01.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a01.exe -lssp
+
+main.o: main.c
+	gcc $(CFLAGS) -c main.c
+
+solve.o: solve.c
+	gcc $(FLAGS) -c solve.c
+
+array_io.o: array_io.c
+	gcc $(CFLAGS) -c array_io.c
+
+init_f.o: init_f.c
+	gcc $(CFLAGS) -c init_f.c
+
+clean:
+	del *.o *.exe
diff --git a/2025.03.14/1Ex/array_io.c b/2025.03.14/1Ex/array_io.c
new file mode 100644
index 0000000..6e56ecf
--- /dev/null
+++ b/2025.03.14/1Ex/array_io.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include "array_io.h"
+
+io_status read_matrix(double *a, int n, int m, const char *name)
+{
+	int i, j;
+	FILE *fp;
+	if (!(fp = fopen(name, "r"))) return ERROR_OPEN;
+	for (i = 0; i < n; i++)
+		for (j = 0; j < m; j++)
+			if (fscanf(fp, "%lf", a + i * m + j) != 1) 
+				{fclose(fp); return ERROR_READ;}
+	fclose(fp);
+	return SUCCESS;
+}
+
+void print_matrix(const double *a, int n, int m, int p)
+{
+	int np = (n > p ? p : n);
+	int mp = (m > p ? p : m);
+	int i, j;
+
+	for (i = 0; i < np; i++)
+	{
+		for (j = 0; j < mp; j++)
+			printf(" %10.3e", a[i * m + j]);
+		printf("\n");
+	}
+}
+
+void init_matrix(double *a, int n, int m, int k)
+{
+	double (*q)(int, int, int, int);
+	double (*f[])(int, int, int, int) = {f1, f2, f3, f4};
+	int i, j;
+	q = f[k-1];
+	for (i = 0; i < n; i++)
+		for (j = 0; j < m; j++)
+			a[i * m + j] = q(n, m, i+1, j+1);
+}
diff --git a/2025.03.14/1Ex/array_io.h b/2025.03.14/1Ex/array_io.h
new file mode 100644
index 0000000..e312a84
--- /dev/null
+++ b/2025.03.14/1Ex/array_io.h
@@ -0,0 +1,11 @@
+#ifndef ARRAY_IO_H
+#define ARRAY_IO_H
+
+#include "io_status.h"
+#include "init_f.h"
+
+io_status read_matrix(double *a, int n, int m, const char *name);
+void print_matrix(const double *a, int n, int m, int p);
+void init_matrix(double *a, int n, int m, int k);
+
+#endif
diff --git a/2025.03.14/1Ex/init_f.c b/2025.03.14/1Ex/init_f.c
new file mode 100644
index 0000000..cf325c3
--- /dev/null
+++ b/2025.03.14/1Ex/init_f.c
@@ -0,0 +1,30 @@
+#include "init_f.h"
+#include <math.h>
+
+#define MAX(n, m) (n < m ? m : n)
+
+double f1(int n, int m, int i, int j)
+{
+	return MAX(n, m) - MAX(i, j) + 1;
+}
+
+double f2(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return MAX(i, j);
+}
+
+double f3(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return abs(i - j);
+}
+
+double f4(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return 1./(i+j-1);
+}
diff --git a/2025.03.14/1Ex/init_f.h b/2025.03.14/1Ex/init_f.h
new file mode 100644
index 0000000..691aace
--- /dev/null
+++ b/2025.03.14/1Ex/init_f.h
@@ -0,0 +1,9 @@
+#ifndef INIT_F_H
+#define INIT_F_H
+
+double f1(int n, int m, int i, int j);
+double f2(int n, int m, int i, int j);
+double f3(int n, int m, int i, int j);
+double f4(int n, int m, int i, int j);
+
+#endif
diff --git a/2025.03.14/1Ex/io_status.h b/2025.03.14/1Ex/io_status.h
new file mode 100644
index 0000000..a51376d
--- /dev/null
+++ b/2025.03.14/1Ex/io_status.h
@@ -0,0 +1,14 @@
+#ifndef IO_STATUS_H
+#define IO_STATUS_H
+
+#define LEN 1234
+
+typedef enum _io_status
+{
+	SUCCESS,
+	ERROR_OPEN,
+	ERROR_READ,
+	ERROR_MEM
+} io_status;
+
+#endif
diff --git a/2025.03.14/1Ex/main.c b/2025.03.14/1Ex/main.c
new file mode 100644
index 0000000..9f23202
--- /dev/null
+++ b/2025.03.14/1Ex/main.c
@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "array_io.h"
+#include "io_status.h"
+#include "solve.h"
+
+/* ./a.out n m p k [filename] */
+int main(int argc, char *argv[])
+{
+	double t, res, *a;
+	int n, m, p, k, task = 1;
+	char *name = 0;
+	
+	if (!((argc == 5 || argc == 6) && 
+				sscanf(argv[1], "%d", &n) == 1 && 
+				sscanf(argv[2], "%d", &m) == 1 && 
+				sscanf(argv[3], "%d", &p) == 1 &&
+				sscanf(argv[4], "%d", &k) == 1 &&
+				k >= 0 && k <= 4 && (!(k == 0 && argc != 6))))
+	{
+		printf("Usage: %s n m p k [filename]\n", argv[0]);
+		return 1;
+	}
+	if (argc == 6) name = argv[5];
+	
+	a = (double *)malloc(n * m * sizeof(double));
+	if (!a)
+	{
+		printf("Not enough memory\n");
+		return 2;
+	}
+
+	if (name)
+	{ /* из файла */
+		io_status ret;
+		ret = read_matrix(a, n, m, name);
+		do {
+			switch (ret)
+			{
+				case SUCCESS:
+					continue;
+				case ERROR_OPEN:
+					printf("Cannot open %s\n", name);
+					break;
+				case ERROR_READ:
+					printf("Cannot read %s\n", name);
+			}
+			free(a);
+			return 3;
+		} while (0);
+	} else init_matrix(a, n, m, k);
+
+	printf("Initial matrix:\n");
+	print_matrix(a, n, m, p);
+
+	t = clock();
+	res = t1_solve(a, n, m);
+	t = (clock() - t) / CLOCKS_PER_SEC;
+
+	printf ("%s : Task = %d Result = %e Elapsed = %.2f\n", argv[0], task, res, t);
+	
+	free(a);
+	return 0;
+}
diff --git a/2025.03.14/1Ex/solve.c b/2025.03.14/1Ex/solve.c
new file mode 100644
index 0000000..ab8ece0
--- /dev/null
+++ b/2025.03.14/1Ex/solve.c
@@ -0,0 +1,28 @@
+#include "solve.h"
+#include <math.h>
+
+#define eps 1e-9
+
+int compare(const double a, const double b)
+{
+	if (a - b > eps) return 1;
+	else if (b - a > eps) return -1;
+	return 0;
+}
+
+double t1_solve(double *a, int n, int m)
+{
+	int i, j;
+	double cur = 0, maximum = 0;
+	if (n > 0)
+		for (j = 0; j < m; j++) maximum += fabs(a[j]);
+	for (i = 1; i < n; i++)
+	{
+		cur = 0;
+		for (j = 0; j < m; j++)
+			cur = fabs(a[i * m + j]);
+		if (compare(cur, maximum) == 1) maximum = cur;
+	}
+
+	return maximum;
+}
diff --git a/2025.03.14/1Ex/solve.h b/2025.03.14/1Ex/solve.h
new file mode 100644
index 0000000..7b01500
--- /dev/null
+++ b/2025.03.14/1Ex/solve.h
@@ -0,0 +1,7 @@
+#ifndef SOLVE_H
+#define SOLVE_H
+
+int compare(const double a, const double b);
+double t1_solve(double *a, int n, int m);
+
+#endif
diff --git a/2025.03.14/1Ex/t.txt b/2025.03.14/1Ex/t.txt
new file mode 100644
index 0000000..65c2e7c
--- /dev/null
+++ b/2025.03.14/1Ex/t.txt
@@ -0,0 +1,5 @@
+1 2 3 4
+5 6 7 8
+9 10 11 12
+13 14 15 16
+17 18 19 20
diff --git a/2025.03.14/1Ex/test_cases.json b/2025.03.14/1Ex/test_cases.json
new file mode 100644
index 0000000..b2e015c
--- /dev/null
+++ b/2025.03.14/1Ex/test_cases.json
@@ -0,0 +1,123 @@
+{
+  "exe": "a08.exe",
+  "filename": "matrix.txt",
+  "tests": [
+    {
+      "name": "File Matrix Test",
+	  "i": 1,
+	  "j": 2,
+	  "g": 2,
+      "k": 0,
+      "p": 5,
+      "matrix": "1 2 3 4\n5 6 7 8\n9 10 11 12\n13 14 15 16\n17 18 19 20"
+    },
+    {
+        "name": "Basic Addition",
+        "i": 1,
+        "j": 2,
+        "g": 2,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Negative Gamma",
+        "i": 1,
+        "j": 3,
+        "g": -1,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Large 1000x1000 Matrix",
+        "i": 500,
+        "j": 999,
+        "g": 1.5,
+        "n": 1000,
+        "m": 1000,
+        "k": 1
+    },
+    {
+        "name": "Floating Point Values",
+        "i": 1,
+        "j": 3,
+        "g": 0.5,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1.1 2.2 3.3\n4.4 5.5 6.6\n7.7 8.8 9.9"
+    },
+    {
+        "name": "Negative Values",
+        "i": 1,
+        "j": 2,
+        "g": -2,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "-1 -2 -3\n-4 -5 -6\n-7 -8 -9"
+    },
+    {
+        "name": "Adding a Row to Itself (Should Double)",
+        "i": 2,
+        "j": 2,
+        "g": 1,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Adding Row with Gamma = 0 (No Change)",
+        "i": 1,
+        "j": 3,
+        "g": 0,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Identity Matrix Transformation",
+        "i": 2,
+        "j": 3,
+        "g": 1,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 0 0\n0 1 0\n0 0 1"
+    },
+    {
+        "name": "All Zeroes",
+        "i": 1,
+        "j": 2,
+        "g": 5,
+        "n": 4,
+        "m": 4,
+        "p": 4,
+        "k": 0,
+        "matrix": "0 0 0 0\n0 0 0 0\n0 0 0 0\n0 0 0 0"
+    },
+    {
+        "name": "Different Row Sizes",
+        "i": 2,
+        "j": 3,
+        "g": 3,
+        "n": 4,
+        "m": 5,
+        "p": 5,
+        "k": 0,
+        "matrix": "10 20 30 40 50\n60 70 80 90 100\n110 120 130 140 150\n160 170 180 190 200"
+    }
+  ]
+}
diff --git a/2025.03.14/1Ex/test_runner.py b/2025.03.14/1Ex/test_runner.py
new file mode 100644
index 0000000..375ff4e
--- /dev/null
+++ b/2025.03.14/1Ex/test_runner.py
@@ -0,0 +1,176 @@
+import json
+import subprocess
+import os
+import time
+import platform
+import re
+import signal
+from colorama import Fore, Style, init
+
+# Enable color support in Windows
+init(autoreset=True)
+
+def color_text(text, color):
+    """Returns colored text"""
+    return color + text + Style.RESET_ALL
+
+def cleanup_and_exit():
+    """Handles cleanup on Ctrl+C or forced exit"""
+    print(color_text("\n[ABORT] Operation interrupted. Cleaning up...", Fore.RED))
+    run_command("make clean")
+    exit(1)
+
+# Register Ctrl+C handler
+signal.signal(signal.SIGINT, lambda sig, frame: cleanup_and_exit())
+
+class TestCase:
+    """Represents a single test case"""
+    def __init__(self, i, j, g, k, matrix=None, n=None, m=None, p=None, debug=False, name=None):
+        self.i = i
+        self.j = j
+        self.g = g
+        self.k = k
+        self.matrix = matrix
+        self.n = n
+        self.m = m
+        self.p = p
+        self.debug = debug
+        self.name = name if name else f"Test k={k}, n={n if n else 'auto'}, m={m if m else 'auto'}, p={p if p else 'auto'}"
+
+        # Compute `n` if missing and `k == 0`
+        if self.k == 0 and self.matrix:
+            if not self.n:
+                self.n = len(self.matrix.strip().split("\n"))
+            if not self.m:
+                self.m = len(self.matrix.strip().split("\n")[0].split())
+
+        # Compute `p`
+        self.p = self.p if self.p else self.n
+
+    def validate_inputs(self):
+        """Ensures input values are valid"""
+        if self.k < 0 or (self.k == 0 and not self.matrix):
+            print(color_text(f"[ERROR] Invalid test parameters: {self.name}", Fore.RED))
+            return False
+        return True
+
+class TestSuite:
+    """Handles loading and running test cases"""
+    def __init__(self, config_file):
+        self.config = self.load_config(config_file)
+        self.exe = self.config["exe"]
+        self.filename = self.config["filename"]
+        self.tests = [TestCase(**test) for test in self.config["tests"]]
+
+    @staticmethod
+    def load_config(filename):
+        """Loads test cases from JSON"""
+        with open(filename, "r", encoding="utf-8") as f:
+            return json.load(f)
+
+def run_command(cmd, exit_on_error=False):
+    """Runs a shell command and handles errors"""
+    try:
+        result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
+        return result
+    except subprocess.CalledProcessError as e:
+        print(color_text(f"[ERROR] Command failed: {cmd}", Fore.RED))
+        print(e.stderr)
+        if exit_on_error:
+            exit(1)
+        return None
+
+def wait_for_executable(exe):
+    """Waits for the executable file to appear after compilation"""
+    print(color_text(f"[WAIT] Waiting for {exe} to be compiled...", Fore.YELLOW))
+    while not os.path.exists(exe):
+        time.sleep(0.1)  # Reduce CPU usage
+    print(color_text(f"[READY] {exe} compiled successfully.", Fore.GREEN))
+
+def format_matrix(matrix):
+    """Formats a matrix to match `printf("%10.3e")` output"""
+    formatted = []
+    for row in matrix.strip().split("\n"):
+        formatted.append(" ".join(f"{float(num):10.3e}" for num in row.split()))
+    return "\n".join(formatted)
+
+def result_matrix_output(output):
+    parts = output.split("Result matrix:\n")
+    if len(parts) > 1:
+        matrix_lines = parts[1].strip().split("\n")
+        return format_matrix("\n".join(matrix_lines[:-1]))
+    return ""
+
+def initial_matrix_output(output):
+    parts = output.split("Initial matrix:\n")
+    if len(parts) > 1:
+        parts = parts[1].split("Result")
+        matrix_lines = parts[0].strip().split("\n")
+        return format_matrix("\n".join(matrix_lines))
+    return ""
+
+def ep1_matrix(matrix, i, j, g):
+    rows = matrix.strip().split("\n")
+    ep1 = [[float(num) for num in row.split()] for row in rows]
+    for k in range(len(ep1[0])): ep1[j][k] += ep1[i][k] * g
+    return "\n".join(" ".join(f"{num:10.3e}" for num in row) for row in ep1)
+
+def run_test(test_suite, test):
+    """Runs the program and checks its result"""
+    if not test.validate_inputs():
+        return
+
+    exe, filename = test_suite.exe, test_suite.filename
+
+    # If matrix is given, write it to the file
+    if test.k == 0 and test.matrix:
+        with open(filename, "w", encoding="utf-8") as f:
+            f.write(format_matrix(test.matrix.strip()) + "\n")
+
+    cmd = [exe, str(test.i), str(test.j), str(test.g), str(test.n), str(test.m), str(test.p), str(test.k)]
+    if test.k == 0:
+        cmd.append(filename)
+
+    # Run the program
+    result = run_command(cmd)
+
+    # Extract both initial and result matrices
+    initial_matrix = initial_matrix_output(result.stdout)
+    result_matrix = result_matrix_output(result.stdout)
+
+    expected_transposed = ep1_matrix(initial_matrix, test.i-1, test.j-1, test.g)
+
+    if result_matrix.strip() != expected_transposed.strip():
+        print(color_text(f"[FAIL] Test '{test.name}' matrix mismatch.", Fore.RED))
+        print(f"Expected:\n{expected_transposed}")
+        print(f"Got:\n{result_matrix}")
+        return
+
+    print(color_text(f"[PASS] Test '{test.name}' passed.", Fore.GREEN))
+    
+    if test.k == 0:
+         # Cleanup test file
+        try:
+            os.remove(filename)
+        except (FileNotFoundError, PermissionError):
+            print(color_text(f"[WARNING] Could not delete {filename}, Windows may be locking it.", Fore.RED))
+
+   
+def main():
+    print(color_text("[CLEAN] Cleaning project...", Fore.BLUE))
+    run_command("make clean", exit_on_error=True)
+
+    print(color_text("[BUILD] Compiling project...", Fore.BLUE))
+    run_command("make", exit_on_error=True)
+
+    test_suite = TestSuite("test_cases.json")
+    wait_for_executable(test_suite.exe)
+
+    for test in test_suite.tests:
+        run_test(test_suite, test)
+
+    print(color_text("[CLEAN] Final cleanup...", Fore.BLUE))
+    run_command("make clean")
+
+if __name__ == "__main__":
+    main()
diff --git a/2025.03.14/2Ex/Makefile b/2025.03.14/2Ex/Makefile
new file mode 100644
index 0000000..f7c9fe2
--- /dev/null
+++ b/2025.03.14/2Ex/Makefile
@@ -0,0 +1,19 @@
+FLAGS = -fstack-protector-all -W -Wall -Wextra -Wunused -Wcast-align -Werror -pedantic -pedantic-errors -Wfloat-equal -Wpointer-arith -Wformat-security -Wmissing-format-attribute -Wformat=1 -Wwrite-strings -Wcast-align -Wno-long-long -std=gnu99 -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wdeclaration-after-statement -Wbad-function-cast -Wnested-externs -O3
+
+a02.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a02.exe -lssp
+
+main.o: main.c
+	gcc $(CFLAGS) -c main.c
+
+solve.o: solve.c
+	gcc $(FLAGS) -c solve.c
+
+array_io.o: array_io.c
+	gcc $(CFLAGS) -c array_io.c
+
+init_f.o: init_f.c
+	gcc $(CFLAGS) -c init_f.c
+
+clean:
+	del *.o *.exe
diff --git a/2025.03.14/2Ex/array_io.c b/2025.03.14/2Ex/array_io.c
new file mode 100644
index 0000000..6e56ecf
--- /dev/null
+++ b/2025.03.14/2Ex/array_io.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include "array_io.h"
+
+io_status read_matrix(double *a, int n, int m, const char *name)
+{
+	int i, j;
+	FILE *fp;
+	if (!(fp = fopen(name, "r"))) return ERROR_OPEN;
+	for (i = 0; i < n; i++)
+		for (j = 0; j < m; j++)
+			if (fscanf(fp, "%lf", a + i * m + j) != 1) 
+				{fclose(fp); return ERROR_READ;}
+	fclose(fp);
+	return SUCCESS;
+}
+
+void print_matrix(const double *a, int n, int m, int p)
+{
+	int np = (n > p ? p : n);
+	int mp = (m > p ? p : m);
+	int i, j;
+
+	for (i = 0; i < np; i++)
+	{
+		for (j = 0; j < mp; j++)
+			printf(" %10.3e", a[i * m + j]);
+		printf("\n");
+	}
+}
+
+void init_matrix(double *a, int n, int m, int k)
+{
+	double (*q)(int, int, int, int);
+	double (*f[])(int, int, int, int) = {f1, f2, f3, f4};
+	int i, j;
+	q = f[k-1];
+	for (i = 0; i < n; i++)
+		for (j = 0; j < m; j++)
+			a[i * m + j] = q(n, m, i+1, j+1);
+}
diff --git a/2025.03.14/2Ex/array_io.h b/2025.03.14/2Ex/array_io.h
new file mode 100644
index 0000000..e312a84
--- /dev/null
+++ b/2025.03.14/2Ex/array_io.h
@@ -0,0 +1,11 @@
+#ifndef ARRAY_IO_H
+#define ARRAY_IO_H
+
+#include "io_status.h"
+#include "init_f.h"
+
+io_status read_matrix(double *a, int n, int m, const char *name);
+void print_matrix(const double *a, int n, int m, int p);
+void init_matrix(double *a, int n, int m, int k);
+
+#endif
diff --git a/2025.03.14/2Ex/init_f.c b/2025.03.14/2Ex/init_f.c
new file mode 100644
index 0000000..cf325c3
--- /dev/null
+++ b/2025.03.14/2Ex/init_f.c
@@ -0,0 +1,30 @@
+#include "init_f.h"
+#include <math.h>
+
+#define MAX(n, m) (n < m ? m : n)
+
+double f1(int n, int m, int i, int j)
+{
+	return MAX(n, m) - MAX(i, j) + 1;
+}
+
+double f2(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return MAX(i, j);
+}
+
+double f3(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return abs(i - j);
+}
+
+double f4(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return 1./(i+j-1);
+}
diff --git a/2025.03.14/2Ex/init_f.h b/2025.03.14/2Ex/init_f.h
new file mode 100644
index 0000000..691aace
--- /dev/null
+++ b/2025.03.14/2Ex/init_f.h
@@ -0,0 +1,9 @@
+#ifndef INIT_F_H
+#define INIT_F_H
+
+double f1(int n, int m, int i, int j);
+double f2(int n, int m, int i, int j);
+double f3(int n, int m, int i, int j);
+double f4(int n, int m, int i, int j);
+
+#endif
diff --git a/2025.03.14/2Ex/io_status.h b/2025.03.14/2Ex/io_status.h
new file mode 100644
index 0000000..a51376d
--- /dev/null
+++ b/2025.03.14/2Ex/io_status.h
@@ -0,0 +1,14 @@
+#ifndef IO_STATUS_H
+#define IO_STATUS_H
+
+#define LEN 1234
+
+typedef enum _io_status
+{
+	SUCCESS,
+	ERROR_OPEN,
+	ERROR_READ,
+	ERROR_MEM
+} io_status;
+
+#endif
diff --git a/2025.03.14/2Ex/main.c b/2025.03.14/2Ex/main.c
new file mode 100644
index 0000000..42541fc
--- /dev/null
+++ b/2025.03.14/2Ex/main.c
@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "array_io.h"
+#include "io_status.h"
+#include "solve.h"
+
+/* ./a.out n m p k [filename] */
+int main(int argc, char *argv[])
+{
+	double t, res, *a;
+	int n, m, p, k, task = 2;
+	char *name = 0;
+	
+	if (!((argc == 5 || argc == 6) && 
+				sscanf(argv[1], "%d", &n) == 1 && 
+				sscanf(argv[2], "%d", &m) == 1 && 
+				sscanf(argv[3], "%d", &p) == 1 &&
+				sscanf(argv[4], "%d", &k) == 1 &&
+				k >= 0 && k <= 4 && (!(k == 0 && argc != 6))))
+	{
+		printf("Usage: %s n m p k [filename]\n", argv[0]);
+		return 1;
+	}
+	if (argc == 6) name = argv[5];
+	
+	a = (double *)malloc(n * m * sizeof(double));
+	if (!a)
+	{
+		printf("Not enough memory\n");
+		return 2;
+	}
+
+	if (name)
+	{ /* из файла */
+		io_status ret;
+		ret = read_matrix(a, n, m, name);
+		do {
+			switch (ret)
+			{
+				case SUCCESS:
+					continue;
+				case ERROR_OPEN:
+					printf("Cannot open %s\n", name);
+					break;
+				case ERROR_READ:
+					printf("Cannot read %s\n", name);
+			}
+			free(a);
+			return 3;
+		} while (0);
+	} else init_matrix(a, n, m, k);
+
+	printf("Initial matrix:\n");
+	print_matrix(a, n, m, p);
+
+	t = clock();
+	res = t2_solve(a, n, m);
+	t = (clock() - t) / CLOCKS_PER_SEC;
+
+	printf ("%s : Task = %d Result = %e Elapsed = %.2f\n", argv[0], task, res, t);
+	
+	free(a);
+	return 0;
+}
diff --git a/2025.03.14/2Ex/solve.c b/2025.03.14/2Ex/solve.c
new file mode 100644
index 0000000..40d95a3
--- /dev/null
+++ b/2025.03.14/2Ex/solve.c
@@ -0,0 +1,28 @@
+#include "solve.h"
+#include <math.h>
+
+#define eps 1e-9
+
+int compare(const double a, const double b)
+{
+	if (a - b > eps) return 1;
+	else if (b - a > eps) return -1;
+	return 0;
+}
+
+double t2_solve(double *a, int n, int m)
+{
+	int i, j;
+	double cur = 0, maximum = 0;
+	if (m > 0)
+		for (i = 0; i < n; i++) maximum += fabs(a[i * m]);
+	for (j = 1; j < m; j++)
+	{
+		cur = 0;
+		for (i = 0; i < n; i++)
+			cur += fabs(a[i * m + j]);
+		if (compare(cur, maximum) == 1) maximum = cur;
+	}
+
+	return maximum;
+}
diff --git a/2025.03.14/2Ex/solve.h b/2025.03.14/2Ex/solve.h
new file mode 100644
index 0000000..550dd66
--- /dev/null
+++ b/2025.03.14/2Ex/solve.h
@@ -0,0 +1,7 @@
+#ifndef SOLVE_H
+#define SOLVE_H
+
+int compare(const double a, const double b);
+double t2_solve(double *a, int n, int m);
+
+#endif
diff --git a/2025.03.14/2Ex/t.txt b/2025.03.14/2Ex/t.txt
new file mode 100644
index 0000000..65c2e7c
--- /dev/null
+++ b/2025.03.14/2Ex/t.txt
@@ -0,0 +1,5 @@
+1 2 3 4
+5 6 7 8
+9 10 11 12
+13 14 15 16
+17 18 19 20
diff --git a/2025.03.14/2Ex/test_cases.json b/2025.03.14/2Ex/test_cases.json
new file mode 100644
index 0000000..b2e015c
--- /dev/null
+++ b/2025.03.14/2Ex/test_cases.json
@@ -0,0 +1,123 @@
+{
+  "exe": "a08.exe",
+  "filename": "matrix.txt",
+  "tests": [
+    {
+      "name": "File Matrix Test",
+	  "i": 1,
+	  "j": 2,
+	  "g": 2,
+      "k": 0,
+      "p": 5,
+      "matrix": "1 2 3 4\n5 6 7 8\n9 10 11 12\n13 14 15 16\n17 18 19 20"
+    },
+    {
+        "name": "Basic Addition",
+        "i": 1,
+        "j": 2,
+        "g": 2,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Negative Gamma",
+        "i": 1,
+        "j": 3,
+        "g": -1,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Large 1000x1000 Matrix",
+        "i": 500,
+        "j": 999,
+        "g": 1.5,
+        "n": 1000,
+        "m": 1000,
+        "k": 1
+    },
+    {
+        "name": "Floating Point Values",
+        "i": 1,
+        "j": 3,
+        "g": 0.5,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1.1 2.2 3.3\n4.4 5.5 6.6\n7.7 8.8 9.9"
+    },
+    {
+        "name": "Negative Values",
+        "i": 1,
+        "j": 2,
+        "g": -2,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "-1 -2 -3\n-4 -5 -6\n-7 -8 -9"
+    },
+    {
+        "name": "Adding a Row to Itself (Should Double)",
+        "i": 2,
+        "j": 2,
+        "g": 1,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Adding Row with Gamma = 0 (No Change)",
+        "i": 1,
+        "j": 3,
+        "g": 0,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Identity Matrix Transformation",
+        "i": 2,
+        "j": 3,
+        "g": 1,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 0 0\n0 1 0\n0 0 1"
+    },
+    {
+        "name": "All Zeroes",
+        "i": 1,
+        "j": 2,
+        "g": 5,
+        "n": 4,
+        "m": 4,
+        "p": 4,
+        "k": 0,
+        "matrix": "0 0 0 0\n0 0 0 0\n0 0 0 0\n0 0 0 0"
+    },
+    {
+        "name": "Different Row Sizes",
+        "i": 2,
+        "j": 3,
+        "g": 3,
+        "n": 4,
+        "m": 5,
+        "p": 5,
+        "k": 0,
+        "matrix": "10 20 30 40 50\n60 70 80 90 100\n110 120 130 140 150\n160 170 180 190 200"
+    }
+  ]
+}
diff --git a/2025.03.14/2Ex/test_runner.py b/2025.03.14/2Ex/test_runner.py
new file mode 100644
index 0000000..375ff4e
--- /dev/null
+++ b/2025.03.14/2Ex/test_runner.py
@@ -0,0 +1,176 @@
+import json
+import subprocess
+import os
+import time
+import platform
+import re
+import signal
+from colorama import Fore, Style, init
+
+# Enable color support in Windows
+init(autoreset=True)
+
+def color_text(text, color):
+    """Returns colored text"""
+    return color + text + Style.RESET_ALL
+
+def cleanup_and_exit():
+    """Handles cleanup on Ctrl+C or forced exit"""
+    print(color_text("\n[ABORT] Operation interrupted. Cleaning up...", Fore.RED))
+    run_command("make clean")
+    exit(1)
+
+# Register Ctrl+C handler
+signal.signal(signal.SIGINT, lambda sig, frame: cleanup_and_exit())
+
+class TestCase:
+    """Represents a single test case"""
+    def __init__(self, i, j, g, k, matrix=None, n=None, m=None, p=None, debug=False, name=None):
+        self.i = i
+        self.j = j
+        self.g = g
+        self.k = k
+        self.matrix = matrix
+        self.n = n
+        self.m = m
+        self.p = p
+        self.debug = debug
+        self.name = name if name else f"Test k={k}, n={n if n else 'auto'}, m={m if m else 'auto'}, p={p if p else 'auto'}"
+
+        # Compute `n` if missing and `k == 0`
+        if self.k == 0 and self.matrix:
+            if not self.n:
+                self.n = len(self.matrix.strip().split("\n"))
+            if not self.m:
+                self.m = len(self.matrix.strip().split("\n")[0].split())
+
+        # Compute `p`
+        self.p = self.p if self.p else self.n
+
+    def validate_inputs(self):
+        """Ensures input values are valid"""
+        if self.k < 0 or (self.k == 0 and not self.matrix):
+            print(color_text(f"[ERROR] Invalid test parameters: {self.name}", Fore.RED))
+            return False
+        return True
+
+class TestSuite:
+    """Handles loading and running test cases"""
+    def __init__(self, config_file):
+        self.config = self.load_config(config_file)
+        self.exe = self.config["exe"]
+        self.filename = self.config["filename"]
+        self.tests = [TestCase(**test) for test in self.config["tests"]]
+
+    @staticmethod
+    def load_config(filename):
+        """Loads test cases from JSON"""
+        with open(filename, "r", encoding="utf-8") as f:
+            return json.load(f)
+
+def run_command(cmd, exit_on_error=False):
+    """Runs a shell command and handles errors"""
+    try:
+        result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
+        return result
+    except subprocess.CalledProcessError as e:
+        print(color_text(f"[ERROR] Command failed: {cmd}", Fore.RED))
+        print(e.stderr)
+        if exit_on_error:
+            exit(1)
+        return None
+
+def wait_for_executable(exe):
+    """Waits for the executable file to appear after compilation"""
+    print(color_text(f"[WAIT] Waiting for {exe} to be compiled...", Fore.YELLOW))
+    while not os.path.exists(exe):
+        time.sleep(0.1)  # Reduce CPU usage
+    print(color_text(f"[READY] {exe} compiled successfully.", Fore.GREEN))
+
+def format_matrix(matrix):
+    """Formats a matrix to match `printf("%10.3e")` output"""
+    formatted = []
+    for row in matrix.strip().split("\n"):
+        formatted.append(" ".join(f"{float(num):10.3e}" for num in row.split()))
+    return "\n".join(formatted)
+
+def result_matrix_output(output):
+    parts = output.split("Result matrix:\n")
+    if len(parts) > 1:
+        matrix_lines = parts[1].strip().split("\n")
+        return format_matrix("\n".join(matrix_lines[:-1]))
+    return ""
+
+def initial_matrix_output(output):
+    parts = output.split("Initial matrix:\n")
+    if len(parts) > 1:
+        parts = parts[1].split("Result")
+        matrix_lines = parts[0].strip().split("\n")
+        return format_matrix("\n".join(matrix_lines))
+    return ""
+
+def ep1_matrix(matrix, i, j, g):
+    rows = matrix.strip().split("\n")
+    ep1 = [[float(num) for num in row.split()] for row in rows]
+    for k in range(len(ep1[0])): ep1[j][k] += ep1[i][k] * g
+    return "\n".join(" ".join(f"{num:10.3e}" for num in row) for row in ep1)
+
+def run_test(test_suite, test):
+    """Runs the program and checks its result"""
+    if not test.validate_inputs():
+        return
+
+    exe, filename = test_suite.exe, test_suite.filename
+
+    # If matrix is given, write it to the file
+    if test.k == 0 and test.matrix:
+        with open(filename, "w", encoding="utf-8") as f:
+            f.write(format_matrix(test.matrix.strip()) + "\n")
+
+    cmd = [exe, str(test.i), str(test.j), str(test.g), str(test.n), str(test.m), str(test.p), str(test.k)]
+    if test.k == 0:
+        cmd.append(filename)
+
+    # Run the program
+    result = run_command(cmd)
+
+    # Extract both initial and result matrices
+    initial_matrix = initial_matrix_output(result.stdout)
+    result_matrix = result_matrix_output(result.stdout)
+
+    expected_transposed = ep1_matrix(initial_matrix, test.i-1, test.j-1, test.g)
+
+    if result_matrix.strip() != expected_transposed.strip():
+        print(color_text(f"[FAIL] Test '{test.name}' matrix mismatch.", Fore.RED))
+        print(f"Expected:\n{expected_transposed}")
+        print(f"Got:\n{result_matrix}")
+        return
+
+    print(color_text(f"[PASS] Test '{test.name}' passed.", Fore.GREEN))
+    
+    if test.k == 0:
+         # Cleanup test file
+        try:
+            os.remove(filename)
+        except (FileNotFoundError, PermissionError):
+            print(color_text(f"[WARNING] Could not delete {filename}, Windows may be locking it.", Fore.RED))
+
+   
+def main():
+    print(color_text("[CLEAN] Cleaning project...", Fore.BLUE))
+    run_command("make clean", exit_on_error=True)
+
+    print(color_text("[BUILD] Compiling project...", Fore.BLUE))
+    run_command("make", exit_on_error=True)
+
+    test_suite = TestSuite("test_cases.json")
+    wait_for_executable(test_suite.exe)
+
+    for test in test_suite.tests:
+        run_test(test_suite, test)
+
+    print(color_text("[CLEAN] Final cleanup...", Fore.BLUE))
+    run_command("make clean")
+
+if __name__ == "__main__":
+    main()
diff --git a/2025.03.14/3Ex/Makefile b/2025.03.14/3Ex/Makefile
new file mode 100644
index 0000000..13a2d7b
--- /dev/null
+++ b/2025.03.14/3Ex/Makefile
@@ -0,0 +1,19 @@
+FLAGS = -fstack-protector-all -W -Wall -Wextra -Wunused -Wcast-align -Werror -pedantic -pedantic-errors -Wfloat-equal -Wpointer-arith -Wformat-security -Wmissing-format-attribute -Wformat=1 -Wwrite-strings -Wcast-align -Wno-long-long -std=gnu99 -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wdeclaration-after-statement -Wbad-function-cast -Wnested-externs -O3
+
+a03.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a03.exe -lssp
+
+main.o: main.c
+	gcc $(CFLAGS) -c main.c
+
+solve.o: solve.c
+	gcc $(FLAGS) -c solve.c
+
+array_io.o: array_io.c
+	gcc $(CFLAGS) -c array_io.c
+
+init_f.o: init_f.c
+	gcc $(CFLAGS) -c init_f.c
+
+clean:
+	del *.o *.exe
diff --git a/2025.03.14/3Ex/a.txt b/2025.03.14/3Ex/a.txt
new file mode 100644
index 0000000..b36d133
--- /dev/null
+++ b/2025.03.14/3Ex/a.txt
@@ -0,0 +1,2 @@
+1 2 3
+4 5 6
diff --git a/2025.03.14/3Ex/array_io.c b/2025.03.14/3Ex/array_io.c
new file mode 100644
index 0000000..6e56ecf
--- /dev/null
+++ b/2025.03.14/3Ex/array_io.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include "array_io.h"
+
+io_status read_matrix(double *a, int n, int m, const char *name)
+{
+	int i, j;
+	FILE *fp;
+	if (!(fp = fopen(name, "r"))) return ERROR_OPEN;
+	for (i = 0; i < n; i++)
+		for (j = 0; j < m; j++)
+			if (fscanf(fp, "%lf", a + i * m + j) != 1) 
+				{fclose(fp); return ERROR_READ;}
+	fclose(fp);
+	return SUCCESS;
+}
+
+void print_matrix(const double *a, int n, int m, int p)
+{
+	int np = (n > p ? p : n);
+	int mp = (m > p ? p : m);
+	int i, j;
+
+	for (i = 0; i < np; i++)
+	{
+		for (j = 0; j < mp; j++)
+			printf(" %10.3e", a[i * m + j]);
+		printf("\n");
+	}
+}
+
+void init_matrix(double *a, int n, int m, int k)
+{
+	double (*q)(int, int, int, int);
+	double (*f[])(int, int, int, int) = {f1, f2, f3, f4};
+	int i, j;
+	q = f[k-1];
+	for (i = 0; i < n; i++)
+		for (j = 0; j < m; j++)
+			a[i * m + j] = q(n, m, i+1, j+1);
+}
diff --git a/2025.03.14/3Ex/array_io.h b/2025.03.14/3Ex/array_io.h
new file mode 100644
index 0000000..e312a84
--- /dev/null
+++ b/2025.03.14/3Ex/array_io.h
@@ -0,0 +1,11 @@
+#ifndef ARRAY_IO_H
+#define ARRAY_IO_H
+
+#include "io_status.h"
+#include "init_f.h"
+
+io_status read_matrix(double *a, int n, int m, const char *name);
+void print_matrix(const double *a, int n, int m, int p);
+void init_matrix(double *a, int n, int m, int k);
+
+#endif
diff --git a/2025.03.14/3Ex/b.txt b/2025.03.14/3Ex/b.txt
new file mode 100644
index 0000000..2d6976f
--- /dev/null
+++ b/2025.03.14/3Ex/b.txt
@@ -0,0 +1,3 @@
+3
+2
+1
diff --git a/2025.03.14/3Ex/init_f.c b/2025.03.14/3Ex/init_f.c
new file mode 100644
index 0000000..cf325c3
--- /dev/null
+++ b/2025.03.14/3Ex/init_f.c
@@ -0,0 +1,30 @@
+#include "init_f.h"
+#include <math.h>
+
+#define MAX(n, m) (n < m ? m : n)
+
+double f1(int n, int m, int i, int j)
+{
+	return MAX(n, m) - MAX(i, j) + 1;
+}
+
+double f2(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return MAX(i, j);
+}
+
+double f3(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return abs(i - j);
+}
+
+double f4(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return 1./(i+j-1);
+}
diff --git a/2025.03.14/3Ex/init_f.h b/2025.03.14/3Ex/init_f.h
new file mode 100644
index 0000000..691aace
--- /dev/null
+++ b/2025.03.14/3Ex/init_f.h
@@ -0,0 +1,9 @@
+#ifndef INIT_F_H
+#define INIT_F_H
+
+double f1(int n, int m, int i, int j);
+double f2(int n, int m, int i, int j);
+double f3(int n, int m, int i, int j);
+double f4(int n, int m, int i, int j);
+
+#endif
diff --git a/2025.03.14/3Ex/io_status.h b/2025.03.14/3Ex/io_status.h
new file mode 100644
index 0000000..a51376d
--- /dev/null
+++ b/2025.03.14/3Ex/io_status.h
@@ -0,0 +1,14 @@
+#ifndef IO_STATUS_H
+#define IO_STATUS_H
+
+#define LEN 1234
+
+typedef enum _io_status
+{
+	SUCCESS,
+	ERROR_OPEN,
+	ERROR_READ,
+	ERROR_MEM
+} io_status;
+
+#endif
diff --git a/2025.03.14/3Ex/main.c b/2025.03.14/3Ex/main.c
new file mode 100644
index 0000000..2071813
--- /dev/null
+++ b/2025.03.14/3Ex/main.c
@@ -0,0 +1,161 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "array_io.h"
+#include "io_status.h"
+#include "solve.h"
+
+/* ./a.out n m p k_a [filename_a] k_b [filename_b] k_x [filename_x] */
+int main(int argc, char *argv[])
+{
+	double t, res, *a, *b, *x;
+	int n, m, p, k_a, k_b, k_x, task = 3;
+	char *name_a = 0, *name_b = 0, *name_x = 0;
+	
+	if (!((argc >= 7 && argc <= 10) && 
+			sscanf(argv[1], "%d", &n) == 1 && 
+			sscanf(argv[2], "%d", &m) == 1 && 
+			sscanf(argv[3], "%d", &p) == 1 && 
+			sscanf(argv[4], "%d", &k_a) == 1 && 
+			(k_a >= 0 && k_a <= 4) &&
+			(!(k_a == 0 && argc == 7)) && 
+			((k_a == 0 && sscanf(argv[6], "%d", &k_b) == 1) || 
+			 (k_a != 0 && sscanf(argv[5], "%d", &k_b) == 1)) &&
+			(k_b >= 0 && k_b <= 4) && 
+			(!(k_b == 0 && ((argc <= 7) || (k_a == 0 && argc <= 8)))) &&
+			((k_a == 0 && k_b == 0 && sscanf(argv[8], "%d", &k_x) == 1) || 
+			 (k_a != 0 && k_b != 0 && sscanf(argv[6], "%d", &k_x) == 1) ||
+			 (sscanf(argv[7], "%d", &k_x) == 1)) && 
+		       (k_x >= 0 && k_x <= 4) && 
+		       (!(k_x == 0 && ((k_a == 0 && k_b == 0 && argc != 10) || 
+					(k_a != 0 && k_b != 0 && argc != 8) ||
+					(k_a != k_b && argc != 9)))))) 	
+	{
+		printf("Usage: %s n m p k_a [filename_a] k_b [filename_b] k_x [filename_x]\n", argv[0]);
+		return 1;
+	}
+	
+	if (argc != 7) 
+	{
+		int i_b = 6;
+		if (k_a == 0) { name_a = argv[5]; i_b++; }
+		if (k_b == 0) { name_b = argv[i_b]; i_b+=2; }
+		else i_b++;
+		if (k_x == 0) name_x = argv[i_b];
+	}
+
+	a = (double *)malloc(n * m * sizeof(double));
+	if (!a)
+	{
+		printf("Not enough memory\n");
+		return 2;
+	}
+	
+	b = (double *)malloc(n * sizeof(double));
+	if (!b)
+	{
+		free(a);
+		printf("Not enough memory\n");
+		return 2;
+	}
+	
+	x = (double *)malloc(m * sizeof(double));
+	if (!x)
+	{
+		free(a);
+		free(b);
+		printf("Not enough memory\n");
+		return 2;
+	}
+
+	if (name_a)
+	{ /* Читаем матрицу A из файла */
+		io_status ret;
+		ret = read_matrix(a, n, m, name_a);
+		do {
+			switch (ret)
+			{
+				case SUCCESS:
+					continue;
+				case ERROR_OPEN:
+					printf("Cannot open %s\n", name_a);
+					break;
+				case ERROR_READ:
+					printf("Cannot read %s\n", name_a);
+					break;
+			}
+			free(a);
+			free(b);
+			free(x);
+			return 3;
+		} while (0);
+	} 
+	else init_matrix(a, n, m, k_a);
+
+	if (name_b)
+	{ /* Читаем матрицу B из файла */
+		io_status ret;
+		ret = read_matrix(b, n, 1, name_b);
+		do {
+			switch (ret)
+			{
+				case SUCCESS:
+					continue;
+				case ERROR_OPEN:
+					printf("Cannot open %s\n", name_b);
+					break;
+				case ERROR_READ:
+					printf("Cannot read %s\n", name_b);
+					break;
+			}
+			free(a);
+			free(b);
+			free(x);
+			return 3;
+		} while (0);
+	} 
+	else init_matrix(b, n, 1, k_b);
+
+	if (name_x)
+	{ /* Читаем матрицу X из файла */
+		io_status ret;
+		ret = read_matrix(x, m, 1, name_x);
+		do {
+			switch (ret)
+			{
+				case SUCCESS:
+					continue;
+				case ERROR_OPEN:
+					printf("Cannot open %s\n", name_x);
+					break;
+				case ERROR_READ:
+					printf("Cannot read %s\n", name_x);
+					break;
+			}
+			free(a);
+			free(b);
+			free(x);
+			return 3;
+		} while (0);
+	} 
+	else init_matrix(x, m, 1, k_x);
+
+	printf("Initial matrix A:\n");
+	print_matrix(a, n, m, p);
+	printf("Initial vector b:\n");
+	print_matrix(b, n, 1, p);
+	printf("Initial vector x:\n");
+	print_matrix(x, m, 1, p);
+
+	t = clock();
+	res = t3_solve(a, x, b, m, n);
+	t = (clock() - t) / CLOCKS_PER_SEC;
+
+	printf ("%s : Task = %d Result = %e Elapsed = %.2f\n", argv[0], task, res, t);
+
+	free(a);
+	free(b);
+	free(x);
+
+	return 0;
+}
diff --git a/2025.03.14/3Ex/solve.c b/2025.03.14/3Ex/solve.c
new file mode 100644
index 0000000..9851687
--- /dev/null
+++ b/2025.03.14/3Ex/solve.c
@@ -0,0 +1,18 @@
+#include "solve.h"
+#include "math.h"
+
+double t3_solve(const double *A, const double *X, double *B, int m, int n)
+{
+	double r = 0;
+	int i, j;
+	for (i = 0; i < n; i++) B[i] = -B[i];
+
+	for (i = 0; i < n; i++)
+	{
+		for (j = 0; j < m; j++)
+			B[i] += A[i * m + j] * X[j];
+		r += fabs(B[i]);
+	}
+	return r;
+}
+
diff --git a/2025.03.14/3Ex/solve.h b/2025.03.14/3Ex/solve.h
new file mode 100644
index 0000000..06f8529
--- /dev/null
+++ b/2025.03.14/3Ex/solve.h
@@ -0,0 +1,6 @@
+#ifndef SOLVE_H
+#define SOLVE_H
+
+double t3_solve(const double *A, const double *X, double *B, int m, int n);
+
+#endif
diff --git a/2025.03.14/3Ex/x.txt b/2025.03.14/3Ex/x.txt
new file mode 100644
index 0000000..01e79c3
--- /dev/null
+++ b/2025.03.14/3Ex/x.txt
@@ -0,0 +1,3 @@
+1
+2
+3
diff --git a/2025.03.14/4Ex/Makefile b/2025.03.14/4Ex/Makefile
new file mode 100644
index 0000000..f82bcf8
--- /dev/null
+++ b/2025.03.14/4Ex/Makefile
@@ -0,0 +1,19 @@
+FLAGS = -fstack-protector-all -W -Wall -Wextra -Wunused -Wcast-align -Werror -pedantic -pedantic-errors -Wfloat-equal -Wpointer-arith -Wformat-security -Wmissing-format-attribute -Wformat=1 -Wwrite-strings -Wcast-align -Wno-long-long -std=gnu99 -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wdeclaration-after-statement -Wbad-function-cast -Wnested-externs -O3
+
+a04.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a04.exe -lssp
+
+main.o: main.c
+	gcc $(CFLAGS) -c main.c
+
+solve.o: solve.c
+	gcc $(FLAGS) -c solve.c
+
+array_io.o: array_io.c
+	gcc $(CFLAGS) -c array_io.c
+
+init_f.o: init_f.c
+	gcc $(CFLAGS) -c init_f.c
+
+clean:
+	del *.o *.exe
diff --git a/2025.03.14/4Ex/a.txt b/2025.03.14/4Ex/a.txt
new file mode 100644
index 0000000..b36d133
--- /dev/null
+++ b/2025.03.14/4Ex/a.txt
@@ -0,0 +1,2 @@
+1 2 3
+4 5 6
diff --git a/2025.03.14/4Ex/array_io.c b/2025.03.14/4Ex/array_io.c
new file mode 100644
index 0000000..6e56ecf
--- /dev/null
+++ b/2025.03.14/4Ex/array_io.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include "array_io.h"
+
+io_status read_matrix(double *a, int n, int m, const char *name)
+{
+	int i, j;
+	FILE *fp;
+	if (!(fp = fopen(name, "r"))) return ERROR_OPEN;
+	for (i = 0; i < n; i++)
+		for (j = 0; j < m; j++)
+			if (fscanf(fp, "%lf", a + i * m + j) != 1) 
+				{fclose(fp); return ERROR_READ;}
+	fclose(fp);
+	return SUCCESS;
+}
+
+void print_matrix(const double *a, int n, int m, int p)
+{
+	int np = (n > p ? p : n);
+	int mp = (m > p ? p : m);
+	int i, j;
+
+	for (i = 0; i < np; i++)
+	{
+		for (j = 0; j < mp; j++)
+			printf(" %10.3e", a[i * m + j]);
+		printf("\n");
+	}
+}
+
+void init_matrix(double *a, int n, int m, int k)
+{
+	double (*q)(int, int, int, int);
+	double (*f[])(int, int, int, int) = {f1, f2, f3, f4};
+	int i, j;
+	q = f[k-1];
+	for (i = 0; i < n; i++)
+		for (j = 0; j < m; j++)
+			a[i * m + j] = q(n, m, i+1, j+1);
+}
diff --git a/2025.03.14/4Ex/array_io.h b/2025.03.14/4Ex/array_io.h
new file mode 100644
index 0000000..e312a84
--- /dev/null
+++ b/2025.03.14/4Ex/array_io.h
@@ -0,0 +1,11 @@
+#ifndef ARRAY_IO_H
+#define ARRAY_IO_H
+
+#include "io_status.h"
+#include "init_f.h"
+
+io_status read_matrix(double *a, int n, int m, const char *name);
+void print_matrix(const double *a, int n, int m, int p);
+void init_matrix(double *a, int n, int m, int k);
+
+#endif
diff --git a/2025.03.14/4Ex/b.txt b/2025.03.14/4Ex/b.txt
new file mode 100644
index 0000000..2d6976f
--- /dev/null
+++ b/2025.03.14/4Ex/b.txt
@@ -0,0 +1,3 @@
+3
+2
+1
diff --git a/2025.03.14/4Ex/init_f.c b/2025.03.14/4Ex/init_f.c
new file mode 100644
index 0000000..cf325c3
--- /dev/null
+++ b/2025.03.14/4Ex/init_f.c
@@ -0,0 +1,30 @@
+#include "init_f.h"
+#include <math.h>
+
+#define MAX(n, m) (n < m ? m : n)
+
+double f1(int n, int m, int i, int j)
+{
+	return MAX(n, m) - MAX(i, j) + 1;
+}
+
+double f2(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return MAX(i, j);
+}
+
+double f3(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return abs(i - j);
+}
+
+double f4(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return 1./(i+j-1);
+}
diff --git a/2025.03.14/4Ex/init_f.h b/2025.03.14/4Ex/init_f.h
new file mode 100644
index 0000000..691aace
--- /dev/null
+++ b/2025.03.14/4Ex/init_f.h
@@ -0,0 +1,9 @@
+#ifndef INIT_F_H
+#define INIT_F_H
+
+double f1(int n, int m, int i, int j);
+double f2(int n, int m, int i, int j);
+double f3(int n, int m, int i, int j);
+double f4(int n, int m, int i, int j);
+
+#endif
diff --git a/2025.03.14/4Ex/io_status.h b/2025.03.14/4Ex/io_status.h
new file mode 100644
index 0000000..a51376d
--- /dev/null
+++ b/2025.03.14/4Ex/io_status.h
@@ -0,0 +1,14 @@
+#ifndef IO_STATUS_H
+#define IO_STATUS_H
+
+#define LEN 1234
+
+typedef enum _io_status
+{
+	SUCCESS,
+	ERROR_OPEN,
+	ERROR_READ,
+	ERROR_MEM
+} io_status;
+
+#endif
diff --git a/2025.03.14/4Ex/main.c b/2025.03.14/4Ex/main.c
new file mode 100644
index 0000000..91daa07
--- /dev/null
+++ b/2025.03.14/4Ex/main.c
@@ -0,0 +1,161 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "array_io.h"
+#include "io_status.h"
+#include "solve.h"
+
+/* ./a.out n m p k_a [filename_a] k_b [filename_b] k_x [filename_x] */
+int main(int argc, char *argv[])
+{
+	double t, res, *a, *b, *x;
+	int n, m, p, k_a, k_b, k_x, task = 4;
+	char *name_a = 0, *name_b = 0, *name_x = 0;
+	
+	if (!((argc >= 7 && argc <= 10) && 
+			sscanf(argv[1], "%d", &n) == 1 && 
+			sscanf(argv[2], "%d", &m) == 1 && 
+			sscanf(argv[3], "%d", &p) == 1 && 
+			sscanf(argv[4], "%d", &k_a) == 1 && 
+			(k_a >= 0 && k_a <= 4) &&
+			(!(k_a == 0 && argc == 7)) && 
+			((k_a == 0 && sscanf(argv[6], "%d", &k_b) == 1) || 
+			 (k_a != 0 && sscanf(argv[5], "%d", &k_b) == 1)) &&
+			(k_b >= 0 && k_b <= 4) && 
+			(!(k_b == 0 && ((argc <= 7) || (k_a == 0 && argc <= 8)))) &&
+			((k_a == 0 && k_b == 0 && sscanf(argv[8], "%d", &k_x) == 1) || 
+			 (k_a != 0 && k_b != 0 && sscanf(argv[6], "%d", &k_x) == 1) ||
+			 (sscanf(argv[7], "%d", &k_x) == 1)) && 
+		       (k_x >= 0 && k_x <= 4) && 
+		       (!(k_x == 0 && ((k_a == 0 && k_b == 0 && argc != 10) || 
+					(k_a != 0 && k_b != 0 && argc != 8) ||
+					(k_a != k_b && argc != 9)))))) 	
+	{
+		printf("Usage: %s n m p k_a [filename_a] k_b [filename_b] k_x [filename_x]\n", argv[0]);
+		return 1;
+	}
+	
+	if (argc != 7) 
+	{
+		int i_b = 6;
+		if (k_a == 0) { name_a = argv[5]; i_b++; }
+		if (k_b == 0) { name_b = argv[i_b]; i_b+=2; }
+		else i_b++;
+		if (k_x == 0) name_x = argv[i_b];
+	}
+
+	a = (double *)malloc(n * m * sizeof(double));
+	if (!a)
+	{
+		printf("Not enough memory\n");
+		return 2;
+	}
+	
+	b = (double *)malloc(n * sizeof(double));
+	if (!b)
+	{
+		free(a);
+		printf("Not enough memory\n");
+		return 2;
+	}
+	
+	x = (double *)malloc(m * sizeof(double));
+	if (!x)
+	{
+		free(a);
+		free(b);
+		printf("Not enough memory\n");
+		return 2;
+	}
+
+	if (name_a)
+	{ /* Читаем матрицу A из файла */
+		io_status ret;
+		ret = read_matrix(a, n, m, name_a);
+		do {
+			switch (ret)
+			{
+				case SUCCESS:
+					continue;
+				case ERROR_OPEN:
+					printf("Cannot open %s\n", name_a);
+					break;
+				case ERROR_READ:
+					printf("Cannot read %s\n", name_a);
+					break;
+			}
+			free(a);
+			free(b);
+			free(x);
+			return 3;
+		} while (0);
+	} 
+	else init_matrix(a, n, m, k_a);
+
+	if (name_b)
+	{ /* Читаем матрицу B из файла */
+		io_status ret;
+		ret = read_matrix(b, n, 1, name_b);
+		do {
+			switch (ret)
+			{
+				case SUCCESS:
+					continue;
+				case ERROR_OPEN:
+					printf("Cannot open %s\n", name_b);
+					break;
+				case ERROR_READ:
+					printf("Cannot read %s\n", name_b);
+					break;
+			}
+			free(a);
+			free(b);
+			free(x);
+			return 3;
+		} while (0);
+	} 
+	else init_matrix(b, n, 1, k_b);
+
+	if (name_x)
+	{ /* Читаем матрицу X из файла */
+		io_status ret;
+		ret = read_matrix(x, m, 1, name_x);
+		do {
+			switch (ret)
+			{
+				case SUCCESS:
+					continue;
+				case ERROR_OPEN:
+					printf("Cannot open %s\n", name_x);
+					break;
+				case ERROR_READ:
+					printf("Cannot read %s\n", name_x);
+					break;
+			}
+			free(a);
+			free(b);
+			free(x);
+			return 3;
+		} while (0);
+	} 
+	else init_matrix(x, m, 1, k_x);
+
+	printf("Initial matrix A:\n");
+	print_matrix(a, n, m, p);
+	printf("Initial vector b:\n");
+	print_matrix(b, n, 1, p);
+	printf("Initial vector x:\n");
+	print_matrix(x, m, 1, p);
+
+	t = clock();
+	res = t4_solve(a, x, b, m, n);
+	t = (clock() - t) / CLOCKS_PER_SEC;
+
+	printf ("%s : Task = %d Result = %e Elapsed = %.2f\n", argv[0], task, res, t);
+
+	free(a);
+	free(b);
+	free(x);
+
+	return 0;
+}
diff --git a/2025.03.14/4Ex/solve.c b/2025.03.14/4Ex/solve.c
new file mode 100644
index 0000000..fc85bfe
--- /dev/null
+++ b/2025.03.14/4Ex/solve.c
@@ -0,0 +1,28 @@
+#include "solve.h"
+#include "math.h"
+
+#define eps 1e-9
+
+int compare(const double a, const double b)
+{
+	if (a - b > eps) return 1;
+	else if (b - a > eps) return -1;
+	return 0;
+}
+
+double t4_solve(const double *A, const double *X, double *B, int m, int n)
+{
+	double maximum = -1, cur;
+	int i, j;
+
+	for (i = 0; i < n; i++)
+	{
+		cur = -B[i];
+		for (j = 0; j < m; j++)
+			cur += A[i * m + j] * X[j];
+		cur = fabs(cur);
+		if (compare(cur, maximum) == 1) maximum = cur;
+	}
+	return maximum;
+}
+
diff --git a/2025.03.14/4Ex/solve.h b/2025.03.14/4Ex/solve.h
new file mode 100644
index 0000000..9cdda98
--- /dev/null
+++ b/2025.03.14/4Ex/solve.h
@@ -0,0 +1,7 @@
+#ifndef SOLVE_H
+#define SOLVE_H
+
+int compare(const double a, const double b);
+double t4_solve(const double *A, const double *X, double *B, int m, int n);
+
+#endif
diff --git a/2025.03.14/4Ex/x.txt b/2025.03.14/4Ex/x.txt
new file mode 100644
index 0000000..01e79c3
--- /dev/null
+++ b/2025.03.14/4Ex/x.txt
@@ -0,0 +1,3 @@
+1
+2
+3
diff --git a/2025.03.14/Example/Makefile b/2025.03.14/Example/Makefile
new file mode 100644
index 0000000..25150b6
--- /dev/null
+++ b/2025.03.14/Example/Makefile
@@ -0,0 +1,19 @@
+FLAGS = -fstack-protector-all -W -Wall -Wextra -Wunused -Wcast-align -Werror -pedantic -pedantic-errors -Wfloat-equal -Wpointer-arith -Wformat-security -Wmissing-format-attribute -Wformat=1 -Wwrite-strings -Wcast-align -Wno-long-long -std=gnu99 -Wstrict-prototypes -Wmissing-prototypes -Wmissing-declarations -Wold-style-definition -Wdeclaration-after-statement -Wbad-function-cast -Wnested-externs -O3
+
+a01.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a01.exe -lssp
+
+main.o: main.c
+	gcc $(CFLAGS) -c main.c
+
+solve.o: solve.c
+	gcc $(FLAGS) -c solve.c
+
+array_io.o: array_io.c
+	gcc $(CFLAGS) -c array_io.c
+
+init_f.o: init_f.c
+	gcc $(CFLAGS) -c init_f.c
+
+clean:
+	del *.o *.exe
diff --git a/2025.03.14/Example/array_io.c b/2025.03.14/Example/array_io.c
new file mode 100644
index 0000000..6e56ecf
--- /dev/null
+++ b/2025.03.14/Example/array_io.c
@@ -0,0 +1,40 @@
+#include <stdio.h>
+#include "array_io.h"
+
+io_status read_matrix(double *a, int n, int m, const char *name)
+{
+	int i, j;
+	FILE *fp;
+	if (!(fp = fopen(name, "r"))) return ERROR_OPEN;
+	for (i = 0; i < n; i++)
+		for (j = 0; j < m; j++)
+			if (fscanf(fp, "%lf", a + i * m + j) != 1) 
+				{fclose(fp); return ERROR_READ;}
+	fclose(fp);
+	return SUCCESS;
+}
+
+void print_matrix(const double *a, int n, int m, int p)
+{
+	int np = (n > p ? p : n);
+	int mp = (m > p ? p : m);
+	int i, j;
+
+	for (i = 0; i < np; i++)
+	{
+		for (j = 0; j < mp; j++)
+			printf(" %10.3e", a[i * m + j]);
+		printf("\n");
+	}
+}
+
+void init_matrix(double *a, int n, int m, int k)
+{
+	double (*q)(int, int, int, int);
+	double (*f[])(int, int, int, int) = {f1, f2, f3, f4};
+	int i, j;
+	q = f[k-1];
+	for (i = 0; i < n; i++)
+		for (j = 0; j < m; j++)
+			a[i * m + j] = q(n, m, i+1, j+1);
+}
diff --git a/2025.03.14/Example/array_io.h b/2025.03.14/Example/array_io.h
new file mode 100644
index 0000000..e312a84
--- /dev/null
+++ b/2025.03.14/Example/array_io.h
@@ -0,0 +1,11 @@
+#ifndef ARRAY_IO_H
+#define ARRAY_IO_H
+
+#include "io_status.h"
+#include "init_f.h"
+
+io_status read_matrix(double *a, int n, int m, const char *name);
+void print_matrix(const double *a, int n, int m, int p);
+void init_matrix(double *a, int n, int m, int k);
+
+#endif
diff --git a/2025.03.14/Example/init_f.c b/2025.03.14/Example/init_f.c
new file mode 100644
index 0000000..cf325c3
--- /dev/null
+++ b/2025.03.14/Example/init_f.c
@@ -0,0 +1,30 @@
+#include "init_f.h"
+#include <math.h>
+
+#define MAX(n, m) (n < m ? m : n)
+
+double f1(int n, int m, int i, int j)
+{
+	return MAX(n, m) - MAX(i, j) + 1;
+}
+
+double f2(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return MAX(i, j);
+}
+
+double f3(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return abs(i - j);
+}
+
+double f4(int n, int m, int i, int j)
+{
+	(void)n;
+	(void)m;
+	return 1./(i+j-1);
+}
diff --git a/2025.03.14/Example/init_f.h b/2025.03.14/Example/init_f.h
new file mode 100644
index 0000000..691aace
--- /dev/null
+++ b/2025.03.14/Example/init_f.h
@@ -0,0 +1,9 @@
+#ifndef INIT_F_H
+#define INIT_F_H
+
+double f1(int n, int m, int i, int j);
+double f2(int n, int m, int i, int j);
+double f3(int n, int m, int i, int j);
+double f4(int n, int m, int i, int j);
+
+#endif
diff --git a/2025.03.14/Example/io_status.h b/2025.03.14/Example/io_status.h
new file mode 100644
index 0000000..a51376d
--- /dev/null
+++ b/2025.03.14/Example/io_status.h
@@ -0,0 +1,14 @@
+#ifndef IO_STATUS_H
+#define IO_STATUS_H
+
+#define LEN 1234
+
+typedef enum _io_status
+{
+	SUCCESS,
+	ERROR_OPEN,
+	ERROR_READ,
+	ERROR_MEM
+} io_status;
+
+#endif
diff --git a/2025.03.14/Example/main.c b/2025.03.14/Example/main.c
new file mode 100644
index 0000000..9f23202
--- /dev/null
+++ b/2025.03.14/Example/main.c
@@ -0,0 +1,65 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+#include "array_io.h"
+#include "io_status.h"
+#include "solve.h"
+
+/* ./a.out n m p k [filename] */
+int main(int argc, char *argv[])
+{
+	double t, res, *a;
+	int n, m, p, k, task = 1;
+	char *name = 0;
+	
+	if (!((argc == 5 || argc == 6) && 
+				sscanf(argv[1], "%d", &n) == 1 && 
+				sscanf(argv[2], "%d", &m) == 1 && 
+				sscanf(argv[3], "%d", &p) == 1 &&
+				sscanf(argv[4], "%d", &k) == 1 &&
+				k >= 0 && k <= 4 && (!(k == 0 && argc != 6))))
+	{
+		printf("Usage: %s n m p k [filename]\n", argv[0]);
+		return 1;
+	}
+	if (argc == 6) name = argv[5];
+	
+	a = (double *)malloc(n * m * sizeof(double));
+	if (!a)
+	{
+		printf("Not enough memory\n");
+		return 2;
+	}
+
+	if (name)
+	{ /* из файла */
+		io_status ret;
+		ret = read_matrix(a, n, m, name);
+		do {
+			switch (ret)
+			{
+				case SUCCESS:
+					continue;
+				case ERROR_OPEN:
+					printf("Cannot open %s\n", name);
+					break;
+				case ERROR_READ:
+					printf("Cannot read %s\n", name);
+			}
+			free(a);
+			return 3;
+		} while (0);
+	} else init_matrix(a, n, m, k);
+
+	printf("Initial matrix:\n");
+	print_matrix(a, n, m, p);
+
+	t = clock();
+	res = t1_solve(a, n, m);
+	t = (clock() - t) / CLOCKS_PER_SEC;
+
+	printf ("%s : Task = %d Result = %e Elapsed = %.2f\n", argv[0], task, res, t);
+	
+	free(a);
+	return 0;
+}
diff --git a/2025.03.14/Example/solve.c b/2025.03.14/Example/solve.c
new file mode 100644
index 0000000..f69b840
--- /dev/null
+++ b/2025.03.14/Example/solve.c
@@ -0,0 +1,10 @@
+#include "solve.h"
+#include "math.h"
+
+void t8_solve(double *a, int n, int m, int i, int j, double g)
+{
+	int k;
+	(void)n;
+	for (k = 0; k < m; k++)
+		a[j * m + k] += a[i * m + k] * g;
+}
diff --git a/2025.03.14/Example/solve.h b/2025.03.14/Example/solve.h
new file mode 100644
index 0000000..4eef1ed
--- /dev/null
+++ b/2025.03.14/Example/solve.h
@@ -0,0 +1,6 @@
+#ifndef SOLVE_H
+#define SOLVE_H
+
+void t8_solve(double *a, int n, int m, int i, int j, double g);
+
+#endif
diff --git a/2025.03.14/Example/t.txt b/2025.03.14/Example/t.txt
new file mode 100644
index 0000000..65c2e7c
--- /dev/null
+++ b/2025.03.14/Example/t.txt
@@ -0,0 +1,5 @@
+1 2 3 4
+5 6 7 8
+9 10 11 12
+13 14 15 16
+17 18 19 20
diff --git a/2025.03.14/Example/test_cases.json b/2025.03.14/Example/test_cases.json
new file mode 100644
index 0000000..b2e015c
--- /dev/null
+++ b/2025.03.14/Example/test_cases.json
@@ -0,0 +1,123 @@
+{
+  "exe": "a08.exe",
+  "filename": "matrix.txt",
+  "tests": [
+    {
+      "name": "File Matrix Test",
+	  "i": 1,
+	  "j": 2,
+	  "g": 2,
+      "k": 0,
+      "p": 5,
+      "matrix": "1 2 3 4\n5 6 7 8\n9 10 11 12\n13 14 15 16\n17 18 19 20"
+    },
+    {
+        "name": "Basic Addition",
+        "i": 1,
+        "j": 2,
+        "g": 2,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Negative Gamma",
+        "i": 1,
+        "j": 3,
+        "g": -1,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Large 1000x1000 Matrix",
+        "i": 500,
+        "j": 999,
+        "g": 1.5,
+        "n": 1000,
+        "m": 1000,
+        "k": 1
+    },
+    {
+        "name": "Floating Point Values",
+        "i": 1,
+        "j": 3,
+        "g": 0.5,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1.1 2.2 3.3\n4.4 5.5 6.6\n7.7 8.8 9.9"
+    },
+    {
+        "name": "Negative Values",
+        "i": 1,
+        "j": 2,
+        "g": -2,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "-1 -2 -3\n-4 -5 -6\n-7 -8 -9"
+    },
+    {
+        "name": "Adding a Row to Itself (Should Double)",
+        "i": 2,
+        "j": 2,
+        "g": 1,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Adding Row with Gamma = 0 (No Change)",
+        "i": 1,
+        "j": 3,
+        "g": 0,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 2 3\n4 5 6\n7 8 9"
+    },
+    {
+        "name": "Identity Matrix Transformation",
+        "i": 2,
+        "j": 3,
+        "g": 1,
+        "n": 3,
+        "m": 3,
+        "p": 3,
+        "k": 0,
+        "matrix": "1 0 0\n0 1 0\n0 0 1"
+    },
+    {
+        "name": "All Zeroes",
+        "i": 1,
+        "j": 2,
+        "g": 5,
+        "n": 4,
+        "m": 4,
+        "p": 4,
+        "k": 0,
+        "matrix": "0 0 0 0\n0 0 0 0\n0 0 0 0\n0 0 0 0"
+    },
+    {
+        "name": "Different Row Sizes",
+        "i": 2,
+        "j": 3,
+        "g": 3,
+        "n": 4,
+        "m": 5,
+        "p": 5,
+        "k": 0,
+        "matrix": "10 20 30 40 50\n60 70 80 90 100\n110 120 130 140 150\n160 170 180 190 200"
+    }
+  ]
+}
diff --git a/2025.03.14/Example/test_runner.py b/2025.03.14/Example/test_runner.py
new file mode 100644
index 0000000..375ff4e
--- /dev/null
+++ b/2025.03.14/Example/test_runner.py
@@ -0,0 +1,176 @@
+import json
+import subprocess
+import os
+import time
+import platform
+import re
+import signal
+from colorama import Fore, Style, init
+
+# Enable color support in Windows
+init(autoreset=True)
+
+def color_text(text, color):
+    """Returns colored text"""
+    return color + text + Style.RESET_ALL
+
+def cleanup_and_exit():
+    """Handles cleanup on Ctrl+C or forced exit"""
+    print(color_text("\n[ABORT] Operation interrupted. Cleaning up...", Fore.RED))
+    run_command("make clean")
+    exit(1)
+
+# Register Ctrl+C handler
+signal.signal(signal.SIGINT, lambda sig, frame: cleanup_and_exit())
+
+class TestCase:
+    """Represents a single test case"""
+    def __init__(self, i, j, g, k, matrix=None, n=None, m=None, p=None, debug=False, name=None):
+        self.i = i
+        self.j = j
+        self.g = g
+        self.k = k
+        self.matrix = matrix
+        self.n = n
+        self.m = m
+        self.p = p
+        self.debug = debug
+        self.name = name if name else f"Test k={k}, n={n if n else 'auto'}, m={m if m else 'auto'}, p={p if p else 'auto'}"
+
+        # Compute `n` if missing and `k == 0`
+        if self.k == 0 and self.matrix:
+            if not self.n:
+                self.n = len(self.matrix.strip().split("\n"))
+            if not self.m:
+                self.m = len(self.matrix.strip().split("\n")[0].split())
+
+        # Compute `p`
+        self.p = self.p if self.p else self.n
+
+    def validate_inputs(self):
+        """Ensures input values are valid"""
+        if self.k < 0 or (self.k == 0 and not self.matrix):
+            print(color_text(f"[ERROR] Invalid test parameters: {self.name}", Fore.RED))
+            return False
+        return True
+
+class TestSuite:
+    """Handles loading and running test cases"""
+    def __init__(self, config_file):
+        self.config = self.load_config(config_file)
+        self.exe = self.config["exe"]
+        self.filename = self.config["filename"]
+        self.tests = [TestCase(**test) for test in self.config["tests"]]
+
+    @staticmethod
+    def load_config(filename):
+        """Loads test cases from JSON"""
+        with open(filename, "r", encoding="utf-8") as f:
+            return json.load(f)
+
+def run_command(cmd, exit_on_error=False):
+    """Runs a shell command and handles errors"""
+    try:
+        result = subprocess.run(cmd, shell=True, capture_output=True, text=True)
+        return result
+    except subprocess.CalledProcessError as e:
+        print(color_text(f"[ERROR] Command failed: {cmd}", Fore.RED))
+        print(e.stderr)
+        if exit_on_error:
+            exit(1)
+        return None
+
+def wait_for_executable(exe):
+    """Waits for the executable file to appear after compilation"""
+    print(color_text(f"[WAIT] Waiting for {exe} to be compiled...", Fore.YELLOW))
+    while not os.path.exists(exe):
+        time.sleep(0.1)  # Reduce CPU usage
+    print(color_text(f"[READY] {exe} compiled successfully.", Fore.GREEN))
+
+def format_matrix(matrix):
+    """Formats a matrix to match `printf("%10.3e")` output"""
+    formatted = []
+    for row in matrix.strip().split("\n"):
+        formatted.append(" ".join(f"{float(num):10.3e}" for num in row.split()))
+    return "\n".join(formatted)
+
+def result_matrix_output(output):
+    parts = output.split("Result matrix:\n")
+    if len(parts) > 1:
+        matrix_lines = parts[1].strip().split("\n")
+        return format_matrix("\n".join(matrix_lines[:-1]))
+    return ""
+
+def initial_matrix_output(output):
+    parts = output.split("Initial matrix:\n")
+    if len(parts) > 1:
+        parts = parts[1].split("Result")
+        matrix_lines = parts[0].strip().split("\n")
+        return format_matrix("\n".join(matrix_lines))
+    return ""
+
+def ep1_matrix(matrix, i, j, g):
+    rows = matrix.strip().split("\n")
+    ep1 = [[float(num) for num in row.split()] for row in rows]
+    for k in range(len(ep1[0])): ep1[j][k] += ep1[i][k] * g
+    return "\n".join(" ".join(f"{num:10.3e}" for num in row) for row in ep1)
+
+def run_test(test_suite, test):
+    """Runs the program and checks its result"""
+    if not test.validate_inputs():
+        return
+
+    exe, filename = test_suite.exe, test_suite.filename
+
+    # If matrix is given, write it to the file
+    if test.k == 0 and test.matrix:
+        with open(filename, "w", encoding="utf-8") as f:
+            f.write(format_matrix(test.matrix.strip()) + "\n")
+
+    cmd = [exe, str(test.i), str(test.j), str(test.g), str(test.n), str(test.m), str(test.p), str(test.k)]
+    if test.k == 0:
+        cmd.append(filename)
+
+    # Run the program
+    result = run_command(cmd)
+
+    # Extract both initial and result matrices
+    initial_matrix = initial_matrix_output(result.stdout)
+    result_matrix = result_matrix_output(result.stdout)
+
+    expected_transposed = ep1_matrix(initial_matrix, test.i-1, test.j-1, test.g)
+
+    if result_matrix.strip() != expected_transposed.strip():
+        print(color_text(f"[FAIL] Test '{test.name}' matrix mismatch.", Fore.RED))
+        print(f"Expected:\n{expected_transposed}")
+        print(f"Got:\n{result_matrix}")
+        return
+
+    print(color_text(f"[PASS] Test '{test.name}' passed.", Fore.GREEN))
+    
+    if test.k == 0:
+         # Cleanup test file
+        try:
+            os.remove(filename)
+        except (FileNotFoundError, PermissionError):
+            print(color_text(f"[WARNING] Could not delete {filename}, Windows may be locking it.", Fore.RED))
+
+   
+def main():
+    print(color_text("[CLEAN] Cleaning project...", Fore.BLUE))
+    run_command("make clean", exit_on_error=True)
+
+    print(color_text("[BUILD] Compiling project...", Fore.BLUE))
+    run_command("make", exit_on_error=True)
+
+    test_suite = TestSuite("test_cases.json")
+    wait_for_executable(test_suite.exe)
+
+    for test in test_suite.tests:
+        run_test(test_suite, test)
+
+    print(color_text("[CLEAN] Final cleanup...", Fore.BLUE))
+    run_command("make clean")
+
+if __name__ == "__main__":
+    main()
diff --git a/2025.03.14/Tasks05.pdf b/2025.03.14/Tasks05.pdf
new file mode 100644
index 0000000..0bae1c5
Binary files /dev/null and b/2025.03.14/Tasks05.pdf differ