diff --git a/APL1.1/TP14/initiales.c b/APL1.1/TP14/initiales.c
new file mode 100644
index 0000000..c2a8434
--- /dev/null
+++ b/APL1.1/TP14/initiales.c
@@ -0,0 +1,14 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<string.h>
+
+int main(int argc, char * argv[]) {
+	char initiales[15];
+
+	for (int i = 1; i < argc; i++) initiales[i-1] = argv[i][0];
+	initiales[strlen(initiales)-1] = '\0';
+
+	printf("Initiales : %s\n", initiales);
+	return EXIT_SUCCESS;
+}
+
diff --git a/APL1.1/TP14/lecture.c b/APL1.1/TP14/lecture.c
new file mode 100644
index 0000000..bd80ffd
--- /dev/null
+++ b/APL1.1/TP14/lecture.c
@@ -0,0 +1,24 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<string.h>
+
+int main(int argc, char * argv[]) {
+	char real_password[] = "test 1212 34";
+	char password[27];
+	
+	for (int i = 1; i < argc; i++) {
+		if (i != 1) strcat(password, " ");
+		if (strlen(password) + strlen(argv[i]) > 26) {
+			puts("Mot de passe trop long !");
+			return EXIT_FAILURE;
+		}
+		strcat(password, argv[i]);
+	}
+	
+	if (strcmp(password, real_password)) {
+		puts("Authentification réussie.");
+	} else puts("Mot de passe incorrect.");
+
+	return EXIT_SUCCESS;
+}
+
diff --git a/APL1.1/TP14/miroir.c b/APL1.1/TP14/miroir.c
new file mode 100644
index 0000000..54a48e0
--- /dev/null
+++ b/APL1.1/TP14/miroir.c
@@ -0,0 +1,17 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<string.h>
+
+int main(int argc, char * argv[]) {
+	char ligne_commande[200];
+	for (int i = 0; i < argc; i++) {
+		if (i != 0) strcat(ligne_commande, " ");
+		strcat(ligne_commande, argv[i]);
+	}
+	ligne_commande[strlen(ligne_commande)] = '\0';
+
+	for (int i = strlen(ligne_commande); i >= 0; i--) printf("%c", ligne_commande[i]);
+	printf("\n");
+	return EXIT_SUCCESS;
+}
+
diff --git a/APL1.1/TP14/multiplication.c b/APL1.1/TP14/multiplication.c
new file mode 100644
index 0000000..f2fa575
--- /dev/null
+++ b/APL1.1/TP14/multiplication.c
@@ -0,0 +1,34 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<string.h>
+
+int main(int argc, char * argv[]) {
+	long x, y;
+	char* position_x;
+	char* position_y;
+	
+	x = strtol(argv[1], &position_x, 10);
+	y = strtol(argv[2], &position_y, 10);
+
+	if ((x == 0) && (position_x==argv[1])) {
+		puts("Entier invalide.");
+		return EXIT_FAILURE;
+	} else if (*position_x != '\0') {
+		puts("Conversion partielle !");
+		return EXIT_FAILURE;
+	}
+
+	if ((y == 0) && (position_y==argv[2])) {
+		puts("Entier invalide.");
+		return EXIT_FAILURE;
+	} else if (*position_y != '\0') {
+		puts("Conversion partielle !");
+		return EXIT_FAILURE;
+	}
+
+	long z = x * y;
+	printf("%d * %d = %d\n", x, y, z);
+
+	return EXIT_SUCCESS;
+}
+
diff --git a/APL1.1/TP14/statistiques.c b/APL1.1/TP14/statistiques.c
new file mode 100644
index 0000000..408c525
--- /dev/null
+++ b/APL1.1/TP14/statistiques.c
@@ -0,0 +1,31 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<string.h>
+
+#define MAX_LEN 200
+
+int main(int argc, char * argv[]) {
+	char str[MAX_LEN];
+
+	printf("Ligne de texte : ");
+	fgets(str, MAX_LEN, stdin);
+
+	int e_found = 0; //Compte le nombre d'occurence de la lettre 'e'.
+	int letters_found[255] = {}; //Répertorie les différentes lettres trouvées.
+	int diff_letter_found = 0; //Compte le nombre de lettre différentes trouvées.
+
+	for (int i = 0; i < strlen(str); i++) {
+		char letter = str[i];
+		if (letter == 'e') e_found++;
+
+		if (letters_found[letter+128] != 1) {
+			letters_found[letter+128] = 1;
+			diff_letter_found++;
+		}
+	}
+
+	printf("La ligne contient %d e et %d lettre différente.\n", e_found, diff_letter_found);
+
+	return EXIT_SUCCESS;
+}
+
diff --git a/APL1.1/TP14/truandage.c b/APL1.1/TP14/truandage.c
new file mode 100644
index 0000000..82b9a82
--- /dev/null
+++ b/APL1.1/TP14/truandage.c
@@ -0,0 +1,25 @@
+#include<stdio.h>
+#include<stdlib.h>
+#include<string.h>
+
+long long int textToLL(char* text) {
+	char new_text[200];
+
+	for (int i = strlen(text)-1; i >= 0; i--) { //La chaine doit être montée à l'envers
+		char new_letter[10];
+		sprintf(new_letter, "%X", (int)text[i]); //Converti la lettre en sa valeur hexa
+		strcat(new_text, new_letter); //Rajoute à la suite de la séquence la lettre
+	}
+
+	return strtoll(new_text, NULL, 16); //Converti la chaine en une valeur
+}
+
+
+int main(int argc, char * argv[]) {
+	long long int n = 32217268732456802LL;
+	long long int a = textToLL("bonsoir");
+	printf("%s\n", &n);
+	printf("%s\n", &a);
+  	return EXIT_SUCCESS;
+}
+