diff --git a/DEV1.1/TP05/Psr.c b/DEV1.1/TP05/Psr.c
new file mode 100644
index 0000000..7e96fdc
--- /dev/null
+++ b/DEV1.1/TP05/Psr.c
@@ -0,0 +1,7 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+int main(void) {
+  printf("%.15f\n", 12345.678910111213);
+  return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP05/ext b/DEV1.1/TP05/ext
new file mode 100755
index 0000000..7262950
Binary files /dev/null and b/DEV1.1/TP05/ext differ
diff --git a/DEV1.1/TP05/ext.c b/DEV1.1/TP05/ext.c
new file mode 100644
index 0000000..6aeb1ba
--- /dev/null
+++ b/DEV1.1/TP05/ext.c
@@ -0,0 +1,9 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+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;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP05/int.c b/DEV1.1/TP05/int.c
new file mode 100644
index 0000000..cf9ae43
--- /dev/null
+++ b/DEV1.1/TP05/int.c
@@ -0,0 +1,4 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+i
\ No newline at end of file
diff --git a/DEV1.1/TP05/ope b/DEV1.1/TP05/ope
new file mode 100755
index 0000000..f6c2394
Binary files /dev/null and b/DEV1.1/TP05/ope differ
diff --git a/DEV1.1/TP05/ope.c b/DEV1.1/TP05/ope.c
new file mode 100644
index 0000000..58a9a49
--- /dev/null
+++ b/DEV1.1/TP05/ope.c
@@ -0,0 +1,10 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+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);
+  return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP05/psr b/DEV1.1/TP05/psr
new file mode 100755
index 0000000..73daec4
Binary files /dev/null and b/DEV1.1/TP05/psr differ
diff --git a/DEV1.1/TP05/tele b/DEV1.1/TP05/tele
new file mode 100755
index 0000000..29ca9d7
Binary files /dev/null and b/DEV1.1/TP05/tele differ
diff --git a/DEV1.1/TP05/tele.c b/DEV1.1/TP05/tele.c
new file mode 100644
index 0000000..3291c16
--- /dev/null
+++ b/DEV1.1/TP05/tele.c
@@ -0,0 +1,22 @@
+#include <stdlib.h>
+#include <stdio.h>
+
+int main() {
+    float nombre;
+    char caractere;
+
+    printf("Entrez un nombre réel : ");
+    scanf("%f", &nombre);
+
+    printf("En notation scientifique : %e\n", nombre);
+
+    printf("Entrez un caractère : ");
+    scanf(" %c", &caractere);
+
+    for (int i = 0; i < 5; i++) {
+        printf("%c", caractere);
+    }
+    printf("\n");
+
+    return 0;
+}