diff --git a/DEV1.1/TP05/tp5exo1.c b/DEV1.1/TP05/tp5exo1.c
new file mode 100644
index 0000000..6d9f55a
--- /dev/null
+++ b/DEV1.1/TP05/tp5exo1.c
@@ -0,0 +1,10 @@
+#include <stdio.h>
+# include <stdlib.h>
+
+
+int main(void) {
+  printf("%12.f\n", 12345.678910111213);
+  return EXIT_SUCCESS;
+}
+
+/* pour qu'il en affiche 15 il faut écrire printf("%15.f\n"...)*/
\ No newline at end of file
diff --git a/DEV1.1/TP05/tp5exo2.c b/DEV1.1/TP05/tp5exo2.c
new file mode 100644
index 0000000..ce4cd4b
--- /dev/null
+++ b/DEV1.1/TP05/tp5exo2.c
@@ -0,0 +1,10 @@
+int main(void) {
+  printf("%f\n", 5.0+2.5);
+  printf("%f\n", 5.0-2.5);
+  printf("%f\n", 5.0*2.5);
+  printf("%f\n", 5.0/2.5);
+  printf("%f\n", 5.0%2.5);
+  return EXIT_SUCCESS;
+}
+
+/* l'erreur est ici car ca ne prend pas %*/
\ No newline at end of file
diff --git a/DEV1.1/TP05/tp5exo3.c b/DEV1.1/TP05/tp5exo3.c
new file mode 100644
index 0000000..0c46449
--- /dev/null
+++ b/DEV1.1/TP05/tp5exo3.c
@@ -0,0 +1,8 @@
+int main(void) {
+  printf("%f\n", +1.0/0.0);
+  printf("%f\n", -1.0/0.0);
+  printf("%f\n", -0.0/0.0);
+  return EXIT_SUCCESS;
+} 
+
+/* sa affiche les infinis positifi et négatif et nan (Not a Number)*/
\ No newline at end of file
diff --git a/DEV1.1/TP05/tp5exo4.c b/DEV1.1/TP05/tp5exo4.c
new file mode 100644
index 0000000..ed8fa23
--- /dev/null
+++ b/DEV1.1/TP05/tp5exo4.c
@@ -0,0 +1,25 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+
+
+int main(void) {
+ int n;
+ double x; 
+ char m;
+ char y;
+ 
+
+ 
+ printf("Saisir un réel :\n");   
+ n = scanf("%lf",&x); 
+ printf("Notation scientifque : %e\n", x);
+ 
+ getchar(); /* pour qu'il prenne le ENTREZ*/ 
+
+ printf("Saisir un caratcère :\n");
+ y = getchar();
+ printf("Votre caractère : %c%c%c%c%c\n", y,y,y,y,y);
+ 
+ return EXIT_SUCCESS; 
+}
diff --git a/DEV1.1/TP05/tp5exo5.c b/DEV1.1/TP05/tp5exo5.c
new file mode 100644
index 0000000..f6560f6
--- /dev/null
+++ b/DEV1.1/TP05/tp5exo5.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void){
+ int n;
+ double x;
+
+printf("Combien veux-tu investir :\n"); 
+n = scanf("%lf",&x);
+printf(" 1 ans : %f\n", x*0.04);
+printf(" 2 ans : %f\n", x*(0.04*2));
+printf(" 3 ans : %f\n", x*(0.04*3));
+printf(" 4 ans : %f\n", x*(0.04*4));
+printf(" 5 ans : %f\n", x*(0.04*5));
+printf(" 6 ans : %f\n", x*(0.04*6));
+printf(" 7 ans : %f\n", x*(0.04*7));
+
+
+return EXIT_SUCCESS;
+}
diff --git a/DEV1.1/TP05/tp5exo6.c b/DEV1.1/TP05/tp5exo6.c
new file mode 100644
index 0000000..60af151
--- /dev/null
+++ b/DEV1.1/TP05/tp5exo6.c
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void){
+ int n1;
+ int n2;
+ int n3;
+ int n4;
+ int n5;
+ 
+double x1;
+double x2;
+double x3;
+double x4;
+double x5;
+
+printf("Premier réel :\n");
+n1 = scanf("%lf",&x1);
+printf("Deuxième réel :\n");
+n2 = scanf("%lf",&x2);
+printf("Troisième réel :\n");
+n3 = scanf("%lf",&x3);
+printf("Quatrième réel :\n");
+n4 = scanf("%lf",&x4);
+printf("Cinquième réel :\n");
+n5 = scanf("%lf",&x5);
+
+printf("Somme des réels : %f\n", x1+x2+x3+x4+x5);
+
+return EXIT_SUCCESS; 
+}
+ 
\ No newline at end of file