diff --git a/P84.c b/P84.c
new file mode 100644
index 0000000..78f8bd7
--- /dev/null
+++ b/P84.c
@@ -0,0 +1,23 @@
+/* Allocations dynamiques */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+void init(int *tab, int n) {
+    int i;
+    for (i = 0; i < n; i++) {
+        tab[i] = i;
+        printf("tab[%d]=%d\n", i, tab[i]);
+    }
+}
+
+int main() {
+    int i, n, *tab;
+    printf("Saisissez n : ");
+    scanf("%d", &n);
+    tab = (int *) malloc(n * sizeof(int));
+    init(tab, n);
+
+    return 0;
+}
+
diff --git a/P86.c b/P86.c
new file mode 100644
index 0000000..f9b64cb
--- /dev/null
+++ b/P86.c
@@ -0,0 +1,11 @@
+/* Arguments */
+
+#include <stdlib.h>
+#include <stdio.h>
+
+int main(int argc, char *argv[]) {
+    int i;
+    for (i = 0; i < argc; i++) {
+        printf("argv[%d]=%s\n", i, argv[i]);
+    }
+}