diff --git a/DEV1.1/adress.c b/DEV1.1/adress.c
new file mode 100644
index 0000000..1dff85d
--- /dev/null
+++ b/DEV1.1/adress.c
@@ -0,0 +1,52 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+/*#1)
+int main(void){
+  float a;
+    double b;
+    long double c;
+    char d;
+    short int e;
+    int f;
+    unsigned long int g;
+
+    printf("%p\n", a);
+    printf("%p\n", b);
+    printf("%p\n", c);
+    printf("%p\n", d);
+    printf("%p\n", e);
+    printf("%p\n", f);
+    printf("%p\n", g);
+}*/
+
+/*#2)
+int main(void){
+  char min, maj;
+  char *p = NULL;
+ 
+  for(min = 'a', maj = 'A'; maj <= 'Z'; min++, maj++) {
+    p = (p == &min) ? &maj : &min;
+    putchar(*p);
+  }
+  putchar('\n');
+  return EXIT_SUCCESS;
+}*/
+
+int main(void){
+    if(time(NULL)%2){
+        int x = 59;
+        p = &x;
+    
+    } else {
+        int y = 31;
+        p = &y;
+    }
+    /* fragment inactif
+    printf("x=%d\n", x);
+    printf("y=%d\n", y);
+    */
+    printf("%d\n", *p);
+    return EXIT_SUCCESS;
+}
diff --git a/DEV1.1/boucle_encore.c b/DEV1.1/boucle_encore.c
index 210ad00..e7b8b44 100644
--- a/DEV1.1/boucle_encore.c
+++ b/DEV1.1/boucle_encore.c
@@ -29,16 +29,23 @@
 }*/
 
 int main(void){
-    char triangle;
+    char choix;
+
     int hauteur = 0;
     int i;
     int n = 0;
     int etoile;
 
-    printf("entrer votre choix: ");
-    scanf("%c", &triangle);
+    int coter;
+    int a;
+    int ecart;
 
-    if(triangle == 't'){
+    
+
+    printf("entrer votre choix: ");
+    scanf("%c", &choix);
+
+    if(choix == 't'){
         printf("entrer la hauteur du sapin: ");
         scanf("%d", &hauteur);
 
@@ -48,9 +55,37 @@ int main(void){
                 printf("*");
             }
 
-            n += 2;
+            n += 1;
             printf("\n");
         }
-    }
+    }else if(choix == 'c'){
+        printf("entrer la longueur du carre : ");
+        scanf("%d", &coter);
 
+            for(a = 0; a < coter; a++){
+                printf("*");
+            }
+            printf("\n");
+
+            for(a = 0; a < (coter - 2); a++){
+                printf("*");
+                for(ecart = 0; ecart < (coter - 2); ecart++){
+                    printf(" ");
+                }
+                printf("*");
+                printf("\n");
+            }
+
+            for (a = 0; a < coter; a++){
+                printf("*");
+            }
+            printf("\n");
+
+
+    }else if(choix == 'q'){
+        return EXIT_SUCCESS;
+    }else{
+        printf("caractère non reconues\n");
+
+    }
 }
\ No newline at end of file
diff --git a/DEV1.1/debogueur.c b/DEV1.1/debogueur.c
new file mode 100755
index 0000000..8c13fce
--- /dev/null
+++ b/DEV1.1/debogueur.c
@@ -0,0 +1,16 @@
+#include <stdlib.h>
+#include <stdio.h>
+ 
+int somme(int n, int m) {
+  return n+m;
+}
+ 
+int main(void) {
+  int valeur;
+  int* p = NULL;
+  printf("Entrez un entier : ");
+  scanf("%d", p);
+ 
+  printf("Le double vaut %d\n", somme(*p, *p));
+  return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/DEV1.1/fonction.c b/DEV1.1/fonction.c
new file mode 100644
index 0000000..1b895e5
--- /dev/null
+++ b/DEV1.1/fonction.c
@@ -0,0 +1,46 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int triangle(int hauteur, int n =1, int i, int etoile){
+    for (i = 0; i < hauteur; i++){
+
+         for(etoile = 0; etoile < n; etoile++){
+            printf("*");
+        }
+
+         n += 2;
+        printf("\n");
+    }
+}
+
+int carre(int coter = 0, int ecart, int a, int etoile){
+
+    for (a = 0, a < coter, a++){
+        pritnf("*");
+    }
+
+    for (a = 0, a < (coter - 2), a++){
+        printf("*");
+
+        for(ecart = 0, ecart < (coter - 2), ecart++){
+            pritnf(" ");
+        }
+        printf("*");
+    }
+    for (a = 0, a < coter, a++){
+        pritnf("*");
+    }
+}
+
+int menu(char choix){
+    pritnf("triangle : t\ncarre : c\nquitter : q\nenter votre choix : ");
+    scanf("%c", &choix);
+    printf("\n");
+
+}
+
+int main(void){ 
+    
+
+
+}
\ No newline at end of file
diff --git a/DEV1.1/tableau_multidimensionel.c b/DEV1.1/tableau_multidimensionel.c
new file mode 100644
index 0000000..dcfa65a
--- /dev/null
+++ b/DEV1.1/tableau_multidimensionel.c
@@ -0,0 +1,28 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void){
+    int t1 [2] [5] ={{1,2,3,4,5}, {1,2,3,4,5}};
+    int t2 [3] [5] ={{1,2,3,4,5}, {6,7,8,9,10}, {11,12,13,14,15}};
+    int t3 [5] [5] ={{0,0,0,0,0}, {1,0,0,0,0}, {1,2,0,0,0}, {1,2,3,0,0}, {1,2,3,4,0}};
+    int i;
+
+    for(i = 0; i < 10; i++){
+        printf(" | ");
+        printf("%d", t1[i]);
+    }
+    printf("\n");
+
+    for(i = 0; i < 15; i++){
+        printf(" | ");
+        printf("%d", t2[i]);
+    }
+    printf("\n");
+
+    for(i = 0; i < 25; i++){
+        printf(" | ");
+        printf("%d", t3[i]);
+    }
+    printf("\n");
+
+}
\ No newline at end of file
diff --git a/DEV1.1/tableaux.c b/DEV1.1/tableaux.c
new file mode 100644
index 0000000..a6723e6
--- /dev/null
+++ b/DEV1.1/tableaux.c
@@ -0,0 +1,38 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <time.h>
+
+int main (void){
+    int tableau[10];
+    int i;
+    int x;
+    int a;
+    int plus_grand;
+    srand(time(NULL));
+
+    for (i = 0; i < 10; i++){
+        tableau[i] = (rand() &101 ) -50 ;
+
+    }
+
+    for (x = 0; x < 10; x++){
+        printf(" | ");
+        printf("%d", tableau[x]); 
+    }
+
+    printf("\n");
+
+    for (a = 0; a < 10; a++){
+        if (tableau[a] > plus_grand){
+            plus_grand = tableau[a];
+
+        }
+
+    }
+
+    printf("le plus grand est : ");
+    printf("%d", plus_grand);
+    printf("\n");
+
+    return EXIT_SUCCESS;
+}
\ No newline at end of file