diff --git a/.gitignore b/.gitignore
index 74614d8..8780d97 100644
--- a/.gitignore
+++ b/.gitignore
@@ -39,7 +39,6 @@ cmake-build-release/
 CMakeLists.txt
 CMakeCache.txt
 CMakeFiles/
-Makefile
 build/
 dist/
 *.cmake
diff --git a/2025.03.14/01Ex/Makefile b/2025.03.14/01Ex/Makefile
new file mode 100644
index 0000000..25150b6
--- /dev/null
+++ b/2025.03.14/01Ex/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/2025.03.14/02Ex/Makefile b/2025.03.14/02Ex/Makefile
new file mode 100644
index 0000000..f7c9fe2
--- /dev/null
+++ b/2025.03.14/02Ex/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/2025.03.14/03Ex/Makefile b/2025.03.14/03Ex/Makefile
new file mode 100644
index 0000000..13a2d7b
--- /dev/null
+++ b/2025.03.14/03Ex/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/2025.03.14/04Ex/Makefile b/2025.03.14/04Ex/Makefile
new file mode 100644
index 0000000..f82bcf8
--- /dev/null
+++ b/2025.03.14/04Ex/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/2025.03.14/05Ex/Makefile b/2025.03.14/05Ex/Makefile
new file mode 100644
index 0000000..53339c6
--- /dev/null
+++ b/2025.03.14/05Ex/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
+
+a05.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a05.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/2025.03.14/06Ex/Makefile b/2025.03.14/06Ex/Makefile
new file mode 100644
index 0000000..53339c6
--- /dev/null
+++ b/2025.03.14/06Ex/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
+
+a05.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a05.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/2025.03.14/07Ex/Makefile b/2025.03.14/07Ex/Makefile
new file mode 100644
index 0000000..f959ca4
--- /dev/null
+++ b/2025.03.14/07Ex/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
+
+a07.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a07.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/2025.03.14/08Ex/Makefile b/2025.03.14/08Ex/Makefile
new file mode 100644
index 0000000..5d51a05
--- /dev/null
+++ b/2025.03.14/08Ex/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
+
+a08.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a08.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/2025.03.14/09Ex/Makefile b/2025.03.14/09Ex/Makefile
new file mode 100644
index 0000000..8200279
--- /dev/null
+++ b/2025.03.14/09Ex/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
+
+a09.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a09.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/2025.03.14/10Ex/Makefile b/2025.03.14/10Ex/Makefile
new file mode 100644
index 0000000..d34fe5d
--- /dev/null
+++ b/2025.03.14/10Ex/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
+
+a10.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a10.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/2025.03.14/11Ex/Makefile b/2025.03.14/11Ex/Makefile
new file mode 100644
index 0000000..813b579
--- /dev/null
+++ b/2025.03.14/11Ex/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
+
+a11.exe: main.o array_io.o solve.o init_f.o
+	gcc main.o solve.o array_io.o init_f.o -o a11.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/Linux/Makefile b/2025.03.14/Linux/Makefile
new file mode 100644
index 0000000..785eb92
--- /dev/null
+++ b/2025.03.14/Linux/Makefile
@@ -0,0 +1,15 @@
+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
+
+%.out: %.o solve.o array_io.o init_f.o
+	 gcc $(FLAGS) $^ -o $@
+%.o: %.c
+	 gcc -c $(FLAGS) $<
+
+all: a01.out a02.out a03.out a04.out a05.out a06.out a07.out a08.out a09.out a10.out a11.out
+
+solve.o: solve.c solve.h
+array_io.o: array_io.c array_io.h
+init_f.o: init_f.c init_f.h
+
+clean:
+	 rm -f *.o *.out