refactor(structure): normalize folder names with leading zeros for consistency

- Renamed all folders from format NEx (e.g., 1Ex, 2Ex...) to 0NEx (01Ex, 02Ex, etc.)
- Updated subdirectories and files accordingly
- Removed old main Makefile and tasks (a01.c–a09.c, solve.c, io_status.h), likely obsolete
- Cleaned up deprecated task binaries and configs

2025.02.14/08Ex/Linux/Makefile

@@ -0,0 +1,38 @@
+CFLAGS = -mfpmath=sse \
+         -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 \
+		 -D_DEBUG -g \
+		 -c
+
+all: main.o array.o
+	gcc main.o array.o -o a08.out && rm *.o
+
+main.o: main.c
+	gcc $(CFLAGS) main.c
+
+array.o: array.c
+	gcc $(CFLAGS) array.c

2025.02.14/08Ex/Linux/array.c

@@ -0,0 +1,115 @@
+#include "array.h"
+
+
+io_status process_s(const char* s, char* s1, char* s2, const size_t len_s)
+{
+    int i, j;
+    for (i = 0, j = 0; i < (int)len_s; ++i)
+    {
+        if (s[i] == '\\')
+        {
+            if (i + 1 == (int)len_s) return ERROR_PATTERN;
+            else
+            {
+                s1[j] = '0';
+                s2[j++] = s[++i];
+            }
+        }
+        else if ((s[i] == '+') && (j != 0))
+        {
+            s1[j - 1] = '1';
+        }
+        else
+        {
+            s1[j] = '0';
+            s2[j++] = s[i];
+        }
+    }
+
+    s2[j] = '\0';
+
+    return SUCCESS;
+}
+
+io_status process_file(const char* f_in, const char* f_out, const char* s1, const char* s2, int* r)
+{
+    FILE* fp = fopen(f_in, "r");
+    if (!fp) return ERROR_OPEN;
+    else
+    {
+        char buf[LEN] = {0};
+        size_t len_s = strlen(s2);
+        FILE* fw = fopen(f_out, "w");
+        int i;
+
+        if (!fw)
+        {
+            fclose(fp);
+            return ERROR_OPEN;
+        }
+        for (i = 0; fgets(buf, sizeof(buf), fp);)
+        {
+            size_t len_buf = strlen(buf);
+            bool is_approach;
+            if (buf[len_buf - 1] == '\n') buf[--len_buf] = '\0';
+            is_approach = start(buf, s1, s2, len_s, len_buf);
+
+            if (is_approach)
+            {
+                i++;
+                if (buf[len_buf - 1] == '\n') buf[len_buf - 1] = '\0';
+                fprintf(fw, "%s\n", buf);
+            }
+        }
+
+        *r = i;
+        fclose(fw);
+    }
+
+    fclose(fp);
+
+    return SUCCESS;
+}
+
+bool start(const char* buf, const char* s1, const char* s2, const size_t len_s, const size_t len_buf)
+{
+    size_t char_s = sizeof(char);
+    if (buf[0] == s2[0])
+    {
+        if (s1[0] == '1')
+        {
+            if (recursion(buf + char_s, s1, s2, len_s, len_buf - 1)) return true;
+        }
+        if (recursion(buf + char_s, s1 + char_s, s2 + char_s, len_s - 1, len_buf - 1)) return true;
+    }
+
+    return false;
+}
+
+bool recursion(const char* buf, const char* s1, const char* s2, const size_t len_s, const size_t len_buf)
+{
+    size_t char_s = sizeof(char);
+    if (len_s == 0) return true;
+    else if (len_buf == 0) return false;
+    else
+    {
+        int i;
+        for (i = 0; i < (int)len_buf; ++i)
+        {
+            if (buf[i] == s2[i])
+            {
+                if (s1[i] == '1')
+                {
+                    if (recursion(buf + (i + 1) * char_s, s1, s2, len_s, len_buf - 1)) return true;
+                }
+                if (i + 1 == (int)len_s) return true;
+            }
+            else
+            {
+                return false;
+            }
+        }
+
+        return false;
+    }
+}

2025.02.14/08Ex/Linux/array.h

@@ -0,0 +1,14 @@
+#ifndef ARRAY_H
+#define ARRAY_H
+
+#include "io_status.h"
+#include <stdio.h>
+#include <stdbool.h>
+#include <string.h>
+
+io_status process_s(const char * s, char * s1, char * s2, const size_t len_s);
+io_status process_file(const char* f_in, const char* f_out, const char* s1, const char* s2, int* r);
+bool start(const char* buf, const char* s1, const char* s2, const size_t len_s, const size_t len_buf);
+bool recursion(const char* buf, const char* s1, const char* s2, const size_t len_s, const size_t len_buf);
+
+#endif

2025.02.14/08Ex/Linux/io_status.h

@@ -0,0 +1,13 @@
+#ifndef IO_STATUS_H
+#define IO_STATUS_H
+
+#define LEN 1234
+
+typedef enum io_status_ {
+    SUCCESS,
+    ERROR_OPEN,
+    ERROR_READ,
+    ERROR_PATTERN,
+} io_status;
+
+#endif

2025.02.14/08Ex/Linux/main.c

@@ -0,0 +1,67 @@
+#include <stdio.h>
+#include <time.h>
+#include "io_status.h"
+#include "array.h"
+
+io_status task8(const char* f_in, const char* f_out, const char* s, int* res);
+
+io_status task8(const char* f_in, const char* f_out, const char* s, int* res)
+{
+    if (s == NULL) return ERROR_PATTERN;
+    else
+    {
+        size_t len_s = strlen(s);
+        io_status status;
+        char s1[len_s + 1]; // т.к. требуется место для \0
+        char s2[len_s + 1];
+
+        memset(s1, 0, len_s + 1);
+        memset(s2, 0, len_s + 1);
+
+        status = process_s(s, s1, s2, len_s);
+        if (status != SUCCESS) return status;
+        else
+        {
+            return process_file(f_in, f_out, s1, s2, res);
+        }
+    }
+}
+
+int main(int argc, char* argv[])
+{
+    int task = 8;
+    io_status ret;
+    const char* f_in = 0;
+    const char* f_out = 0;
+    const char* s = 0;
+    int res = 0;
+    double t;
+    if (argc != 4)
+    {
+        printf("Usage: %s <f_in> <f_out> <s>\n", argv[0]);
+        return 1;
+    }
+    f_in = argv[1];
+    f_out = argv[2];
+    s = argv[3];
+    t = clock();
+    ret = task8(f_in, f_out, s, &res);
+    t = (clock() - t) / CLOCKS_PER_SEC;
+    switch (ret)
+    {
+    case SUCCESS:
+        printf("%s : Task = %d Result = %d Elapsed = %.2f\n",
+               argv[0], task, res, t);
+        break;
+    case ERROR_OPEN:
+        printf("Can not open %s\n", f_out);
+        return 1;
+    case ERROR_READ:
+        printf("Can not read %s\n", f_out);
+        return 2;
+    case ERROR_PATTERN:
+        printf("Error in pattern %s\n", s);
+        return 3;
+    }
+    return 0;
+}

2025.02.14/08Ex/Linux/t.txt

@@ -0,0 +1 @@
+haaaaaaaaha