Add non finished ex5

Something is wrong from the second value of the reversed array.

ex5/main.c

+/* Author : Dario GENGA
+ * Date : 07.12.2021
+ * Description : Contrôle continue 1 - Exercice 5
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#define ARRAY_LENGTH 6
+
+void reverse(double *array_from, double *array_to, int index) {
+    if (index >= 0) {
+        array_to[ARRAY_LENGTH - index - 1] = array_from[index];
+        reverse(array_from, array_from, index - 1);
+    }
+}
+
+int main() {
+    double *array = malloc(sizeof(double) * ARRAY_LENGTH);
+    double *result = malloc(sizeof(double) * ARRAY_LENGTH);
+
+    for (int i = 0; i < ARRAY_LENGTH; i++) {
+        double value;
+        scanf("%lf", &value);
+        array[i] = value;
+    }
+
+    reverse(array, result, ARRAY_LENGTH - 1);
+
+    printf("\n");
+    for (int i = 0; i < ARRAY_LENGTH; i++) {
+        printf("%lf\n", result[i]);
+    }
+
+    free(array);
+    free(result);
+
+    return EXIT_SUCCESS;
+}

ex5/makefile

+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
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