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  1. #include <stdio.h>
  2. int main()
  3. {
  4. int i, sum;
  5. sum = 0;
  6. i = 1;
  7. while (1) {
  8. sum += i;
  9. if (sum > 1000) {
  10. printf("%d\n", i);
  11. break;
  12. }
  13. i++;
  14. }
  15.  
  16. return 0;
  17. }
  18.  
Success #stdin #stdout 0s 5320KB
stdin
Standard input is empty
stdout
45