From 323dd55be407259baa482e7538a7b14d0e1af87c Mon Sep 17 00:00:00 2001
From: Arkitu <85173315+Arkitu@users.noreply.github.com>
Date: Thu, 25 Sep 2025 20:36:05 +0200
Subject: [PATCH] tp1 exo8

---
 tp1/exo8.c | 36 ++++++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)
 create mode 100644 tp1/exo8.c

diff --git a/tp1/exo8.c b/tp1/exo8.c
new file mode 100644
index 0000000..f1252a8
--- /dev/null
+++ b/tp1/exo8.c
@@ -0,0 +1,36 @@
+#include <stdio.h>
+#include <stdlib.h>
+
+int is_prime(uint a) {
+    uint i = 2;
+    while (i * i <= a) {
+        if (a % i == 0) {
+            return 0;
+        }
+        i++;
+    }
+    return 1;
+}
+
+int f(int a) { return is_prime(abs(a)); }
+
+int main() {
+    int a = 1103;
+    int b = 21;
+    int c = -23;
+    if (f(a)) {
+        printf("%d est premier\n", a);
+    } else {
+        printf("%d n'est pas premier\n", a);
+    }
+    if (f(b)) {
+        printf("%d est premier\n", b);
+    } else {
+        printf("%d n'est pas premier\n", b);
+    }
+    if (f(c)) {
+        printf("%d est premier\n", c);
+    } else {
+        printf("%d n'est pas premier\n", c);
+    }
+}