diff --git a/DEV1.1/TP08/alpha.c b/DEV1.1/TP08/alpha.c
new file mode 100644
index 0000000..d2c1d2f
--- /dev/null
+++ b/DEV1.1/TP08/alpha.c
@@ -0,0 +1,17 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+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;
+}
+9233654589353407584
+
+100000000010010010000111111011010101000100010000101101000110000
\ No newline at end of file
diff --git a/DEV1.1/TP08/carto.c b/DEV1.1/TP08/carto.c
new file mode 100644
index 0000000..e95a90b
--- /dev/null
+++ b/DEV1.1/TP08/carto.c
@@ -0,0 +1,22 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(int argc, char const *argv[])
+{
+	float a = 1;
+	double b = 1;
+	long double c = 1;
+	char d = '1';
+	short int e = 1;
+	int f = 1;
+	long long unsigned int g = 1;
+
+	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 );
+	return 0;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP08/conversion.c b/DEV1.1/TP08/conversion.c
new file mode 100644
index 0000000..61a95c6
--- /dev/null
+++ b/DEV1.1/TP08/conversion.c
@@ -0,0 +1,11 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int main(void) {
+  long long int n = 4614256656552045848LL;
+  double* p = (double*) &n;
+  printf("π = %f\n", *p);
+  long long int m = *p*2;
+  printf("%lld\n", m );
+  return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP08/extension.c b/DEV1.1/TP08/extension.c
new file mode 100644
index 0000000..3731f91
--- /dev/null
+++ b/DEV1.1/TP08/extension.c
@@ -0,0 +1,12 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(void){
+	
+	printf()
+
+
+
+
+}
\ No newline at end of file
diff --git a/DEV1.1/TP08/initiales.c b/DEV1.1/TP08/initiales.c
new file mode 100644
index 0000000..0b4bc71
--- /dev/null
+++ b/DEV1.1/TP08/initiales.c
@@ -0,0 +1,20 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(int argc, char const *argv[])
+{
+	if (argc<2){
+		printf("argument manquant");
+		return 1;
+	}
+	{
+		/* code */
+	}
+	for (int i = 1; i < argc; i++)
+	{
+		printf("%c",argv[i][0]);
+	}
+	printf("\n");
+	return 0;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP08/lecture.c b/DEV1.1/TP08/lecture.c
new file mode 100644
index 0000000..0cd350c
--- /dev/null
+++ b/DEV1.1/TP08/lecture.c
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(void){
+	char pass[10]= "password1";
+	int i;
+	char out;
+	char string[26];
+	printf("Rentrez le mot de passe(max 26 charactere): \n");	
+	for(i=0;i<26;i++){
+		out = getchar();
+		if(out=='\n'){
+			break;
+		}
+		else{
+			string[i]=out;
+		}
+
+	}
+	for(i=0;i<strlen(pass);i++){
+		if (string[i]!=pass[i])
+		{
+			printf("Mauvais mot de passe acces refusé.\n");
+			return 1;
+		}
+	}
+	printf("Mot de passe correct\n");
+
+ 
+	return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP08/multiplication.c b/DEV1.1/TP08/multiplication.c
new file mode 100644
index 0000000..65018c5
--- /dev/null
+++ b/DEV1.1/TP08/multiplication.c
@@ -0,0 +1,32 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+int main(int argc, char const *argv[])
+{
+	if (argc<=2)
+	{
+		printf("il manque des arguments. Il en faut 2, il y en a %d.\n",argc-1);
+		return 1;
+	}
+	for (int i = 0; i < strlen(argv[1]); ++i)
+	{
+		if(argv[1][i]=='.')
+		{
+			printf("Le premier argument n'est pas un reel.\n");
+			return 1;
+		}
+	}
+	for (int i = 0; i < strlen(argv[2]); ++i)
+	{
+		if(argv[2][i]=='.')
+		{
+			printf("Le deuxieme argument n'est pas un reel.\n");
+			return 1;
+		}
+
+	}
+	long x = strtol(argv[1],NULL,10);
+	long y = strtol(argv[2],NULL,10);
+	printf("%ld \n", x*y);
+ 	return 0;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP08/stats.c b/DEV1.1/TP08/stats.c
new file mode 100644
index 0000000..709089e
--- /dev/null
+++ b/DEV1.1/TP08/stats.c
@@ -0,0 +1,37 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+int main(int argc, char const *argv[])
+{
+	char txt[200];
+	char dejavu[255]={' '};
+	int dejavuuu=0;
+	printf("ecriver ici: \n");
+	fgets(txt,200,stdin);
+	int nbE=0;
+	int nbC=0;
+	for (int i = 0; i < strlen(txt); ++i)
+	{
+		if(txt[i]=='e'||txt[i]=='E')
+		{
+			nbE++;
+		}
+		dejavuuu=0;
+		for (int j = 0; j < strlen(dejavu); ++j)
+		{
+			if (txt[i]==dejavu[j])
+			{
+				dejavuuu++;
+			}
+		}
+		if (dejavuuu==0)
+		{
+			nbC++;
+			dejavu[nbC-1]=txt[i];
+		}
+	}
+	printf("Il y a %d nombre de E ou e dans le texte entrée.\nIl y a %d nombre de charactere dans le texte.\n",nbE,nbC-1);
+
+	return 0;
+}
\ No newline at end of file