diff --git a/.gitignore b/.gitignore
new file mode 100644
index 0000000000000000000000000000000000000000..51efe3406b44db65904fbd38667438e64d00dfff
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,81 @@
+
+# Created by https://www.toptal.com/developers/gitignore/api/c,visualstudiocode
+# Edit at https://www.toptal.com/developers/gitignore?templates=c,visualstudiocode
+
+### C ###
+# Prerequisites
+*.d
+
+# Object files
+*.o
+*.ko
+*.obj
+*.elf
+
+# Linker output
+*.ilk
+*.map
+*.exp
+
+# Precompiled Headers
+*.gch
+*.pch
+
+# Libraries
+*.lib
+*.a
+*.la
+*.lo
+
+# Shared objects (inc. Windows DLLs)
+*.dll
+*.so
+*.so.*
+*.dylib
+
+# Executables
+*.exe
+*.out
+*.app
+*.i*86
+*.x86_64
+*.hex
+
+# Debug files
+*.dSYM/
+*.su
+*.idb
+*.pdb
+
+# Kernel Module Compile Results
+*.mod*
+*.cmd
+.tmp_versions/
+modules.order
+Module.symvers
+Mkfile.old
+dkms.conf
+
+### VisualStudioCode ###
+.vscode/*
+!.vscode/settings.json
+!.vscode/tasks.json
+!.vscode/launch.json
+!.vscode/extensions.json
+*.code-workspace
+
+# Local History for Visual Studio Code
+.history/
+
+### VisualStudioCode Patch ###
+# Ignore all local history of files
+.history
+.ionide
+
+# Support for Project snippet scope
+!.vscode/*.code-snippets
+
+# End of https://www.toptal.com/developers/gitignore/api/c,visualstudiocode
+
+# Custom gitignore for project
+main
\ No newline at end of file
diff --git a/ex1/main.c b/ex1/main.c
new file mode 100644
index 0000000000000000000000000000000000000000..cd15dcf95bc40ce50227af0318ffb5281534ab49
--- /dev/null
+++ b/ex1/main.c
@@ -0,0 +1,41 @@
+/* Author : Dario GENGA
+ * Date : 07.12.2021
+ * Description : Contrôle continue 1 - Exercice 1
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <ctype.h>
+#define MAX_WORD_LENGTH 80
+
+int main() {
+    char *word1 = malloc(sizeof(char) * MAX_WORD_LENGTH);
+    char *word2 = malloc(sizeof(char) * MAX_WORD_LENGTH);
+    int distance = 0;
+
+    // Get the word from the user
+    scanf("%s", word1);
+    scanf("%s", word2);
+
+    if (strlen(word1) != strlen(word2)) {
+        // The words must have the same length
+        distance = -1;
+    } else {
+        // Compute the distance of each letters
+        for(size_t i = 0; i < strlen(word1); i++) {
+            int distance_tmp = tolower(word1[i]) - tolower(word2[i]);
+            if (distance_tmp < 0) {
+                distance_tmp = -distance_tmp;
+            }
+            distance += distance_tmp;
+        }
+    }
+    // Print the result and free the memory
+    printf("\ndistance : %d\n", distance);
+
+    free(word1);
+    free(word2);
+
+    return EXIT_SUCCESS;
+}
diff --git a/ex1/makefile b/ex1/makefile
new file mode 100644
index 0000000000000000000000000000000000000000..a217aa28ef6b3524ffcef99d4b31e2d03e8b0cc4
--- /dev/null
+++ b/ex1/makefile
@@ -0,0 +1,10 @@
+LIB=-lm
+CC=gcc -Wall -Wextra -pedantic -g
+
+main: main.o
+	$(CC) $^ -fsanitize=address -fsanitize=leak -o $@ $(LIB)
+
+main.o: main.c
+	$(CC) -c $< $(LIB)
+clean:
+	rm -f *.o main
\ No newline at end of file
diff --git a/makefile b/makefile
new file mode 100644
index 0000000000000000000000000000000000000000..60750c72f1e5d83f75b10bcd6d7f7752937a5f96
--- /dev/null
+++ b/makefile
@@ -0,0 +1,18 @@
+LIB=-lm
+CC=gcc -Wall -Wextra -pedantic -g
+
+matrix: matrix.o main.o
+	$(CC) $^ -fsanitize=address -fsanitize=leak -o $@ $(LIB)
+
+run_tests: tests
+	./$<
+
+tests: test.o matrix.o
+	$(CC) $^ -fsanitize=address -fsanitize=leak -o $@ $(LIB)
+
+matrix.o: matrix.c matrix.h
+	$(CC) -c $< $(LIB)
+main.o: main.c
+	$(CC) -c $< $(LIB)
+clean:
+	rm -f *.o matrix tests
\ No newline at end of file