1 files changed, 6 insertions, 1 deletions
diff --git a/mario.c b/mario.c
index ddb4610..a9ece2a 100644
--- a/mario.c
+++ b/mario.c
@@ -3,7 +3,12 @@
 
 int main(void)
 {
-    int n = get_int("Size: ");
+    int n;
+    do
+    {
+        n = get_int("Size: ");
+    }
+    while (n < 1);
     for (int i = 0; i < n; i++) {
         for (int j = 0; j < n; j++) {
             printf("#");