From 9aaeb4becec63735ed325f2491edfd7018263613 Mon Sep 17 00:00:00 2001
From: 0niiC <pasha07r@gmail.com>
Date: Mon, 17 Nov 2025 10:10:33 +0700
Subject: [PATCH] Implement input validation for leading zero

Add validation to prevent input starting with 0.
---
 infolabs/procmemorylearning/code.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/infolabs/procmemorylearning/code.c b/infolabs/procmemorylearning/code.c
index 7fd9d34..5612071 100644
--- a/infolabs/procmemorylearning/code.c
+++ b/infolabs/procmemorylearning/code.c
@@ -61,6 +61,13 @@ int scan(void){
             printf("You enter n>100 000 Try again\nNum: ");
             continue;
         }
+        
+        if(x=='0'&&n<=0){
+            while((x = getchar())!='\n')
+                if(x == EOF) return 0;
+        printf("You num cannot starts with 0. Try again\nNum: ");
+        continue;
+        }
 
     }
     if (x == EOF) return 0;