diff --git a/DEV1.1/TP18/palindrome b/DEV1.1/TP18/palindrome
new file mode 100755
index 0000000..3dd9dab
Binary files /dev/null and b/DEV1.1/TP18/palindrome differ
diff --git a/DEV1.1/TP18/palindrome.c b/DEV1.1/TP18/palindrome.c
new file mode 100644
index 0000000..c7d6627
--- /dev/null
+++ b/DEV1.1/TP18/palindrome.c
@@ -0,0 +1,31 @@
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+char* inverse(const char* s){
+	int ind=0,i;
+	char lettre;
+	char* tab_inv=(char*) malloc((strlen(s)+1)*sizeof(char));
+	for(i=strlen(s)-1; i>=0;i--){
+		tab_inv[ind]=s[i];
+		ind++;
+	}
+	tab_inv[ind]='\0';
+	return tab_inv;
+}
+
+int main(int argc, char** argv) { 
+	int mot;
+	char* arg=NULL;
+	for (mot=1;mot<argc;mot++){
+		arg=inverse(argv[mot]);
+		if (strcmp(arg,argv[mot])==0)
+			printf("%s est un palindrome",argv[mot]);
+		else 
+			printf("%s n'est pas un palindrome",argv[mot]);
+		if (mot<argc-1)
+			printf(",\n");
+	}
+	printf(".\n");
+	return EXIT_SUCCESS;
+}
\ No newline at end of file
diff --git a/DEV1.1/TP18/precognition b/DEV1.1/TP18/precognition
new file mode 100755
index 0000000..72f0f61
Binary files /dev/null and b/DEV1.1/TP18/precognition differ
diff --git a/DEV1.1/TP18/precognition.c b/DEV1.1/TP18/precognition.c
new file mode 100644
index 0000000..b2060fb
--- /dev/null
+++ b/DEV1.1/TP18/precognition.c
@@ -0,0 +1,35 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+
+int main(void) { 
+	int pris=0,val=1,val1,occ,nbr_val=0;
+	double* tab=NULL;
+	double* tab_val=NULL;
+	tab = (double*) malloc(sizeof(double));
+	printf("Réel à entrer: ");
+	pris=scanf("%lf",tab[nbr_val]);
+	while(pris!=0){
+		tab = (double*) realloc(tab,nbr_val*sizeof(double));
+		printf("Réel à entrer: ");
+		pris=scanf("%lf",tab[nbr_val]);
+		nbr_val++;
+		}
+	tab_val = (double*) malloc(nbr_val*sizeof(double));
+	printf("%3f  ",tab[0]);
+	tab_val[0]=tab[0];
+	for(val=1;val<nbr_val;val++){
+		occ=0;
+		for(val1=0;val1<nbr_val;val1++){
+			if (tab[val]==tab_val[val1])
+				occ++;
+		}
+		if (occ==0)
+			printf("%3f  ",tab[val]);
+		tab_val[val]=tab[val];
+	}
+	free(tab);
+	free(tab_val);
+	printf("\n");
+	return EXIT_SUCCESS;
+}
\ No newline at end of file