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  1.  #include<stdio.h>
  2.  int main()
  3.  {
  4.      int n,i,j,p=0,c=0,s=2,k,u=2,t;
  5.      scanf("%d",&n);
  6.      for(i=2;i<n;i++)
  7.      {p=0;t=0;
  8.          for(j=2;j<i;j++)
  9.          {
  10.              if(i!=j&&i%j==0)
  11.              {
  12.              	p=1;
  13.              break;
  14.              }
  15.          }
  16.          if(p==0)
  17.          {s+=i;u=u+s;}
  18.          for(k=2;k<u;k++)
  19.          {
  20.          	if(u%k==0)
  21.          	t=1;
  22.          }
  23.          if(t==0)
  24.          {c++;printf("%d ",u);}
  25.      }
  26.      printf("%d",c);
  27.      return 0;
  28.  }
  29.  
Success #stdin #stdout 0s 9432KB
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13 13 2
https://ideone.com/R2wDyL
language:
C (gcc 8.3)
created:
6 years ago
visibility:
public

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