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  1. #include <stdio.h>
  2.  
  3. int main(void)
  4. {
  5.     int n = 100;
  6.     int i = 0;
  7.  
  8.     while (n <= 999)
  9.     {
  10.         int sum = n/100 + (n/10)%10 + n%10;
  11.  
  12.         if (sum % 7 == 0)
  13.         {
  14.             i++;
  15.         }
  16.         n++;
  17.     }
  18.  
  19.     printf("%d\n", i);
  20.     return 0;
  21. }
  22.  
Success #stdin #stdout 0s 5320KB
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126
https://ideone.com/abnxYG
language:
C (gcc 8.3)
created:
1 day ago
visibility:
public

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