fork download
copy 
  1. #include <stdio.h>
  2. int main()
  3. {
  4.     int a=0,b=0,bottom=-1,plus=0,fail=0,c=2;
  5.     scanf("%d", &a);
  6.     scanf("%d", &b);
  7.     for(;a<b;a++)
  8.     {
  9.         for(;a>c;c++)
  10.         {
  11.             if(a%c==0)
  12.             fail++;
  13.             if(fail>0)
  14.             break;
  15.         }  
  16.         if(fail==0&&a!=1)
  17.         {
  18.             plus+=a;
  19.             if(bottom==-1)
  20.             bottom=a;
  21.         }
  22.         c=2;
  23.         fail=0;
  24.     }
  25.     if(plus!=0)
  26.     printf("%d \n", plus);
  27.     printf("%d", bottom);
  28.     return 0;
  29. }
Success #stdin #stdout 0s 4360KB
comments (?)
stdin
copy 
7
7
stdout
copy 
-1
https://ideone.com/7OagQq
language:
C (gcc 8.3)
created:
3 years 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!