fork download
copy 
  1. #include <stdio.h>
  2.  
  3. int main()
  4. {
  5.     int n;
  6.     int t = 1;
  7.     int c;
  8.  
  9.     scanf("%d", &n);
  10.  
  11.     for(int i = 2; t%n!=0; i++)
  12.     {
  13.         t = t*10 + 1;
  14.         t %= n;
  15.         c = i;
  16.         if(t<0){printf("?"); break;}
  17.     }
  18.  
  19.     printf("%d\n", c);
  20. }
Success #stdin #stdout 0.01s 5284KB
comments (?)
stdin
copy 
3
7
9901
stdout
copy 
3
https://ideone.com/EBYZZv
language:
C (gcc 8.3)
created:
2 days ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!