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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int i=1,sum=0;
  5. while(sum<=1000){
  6. sum=i+sum;
  7. i++;
  8. }
  9. printf("%d",i-1);
  10. return 0;
  11. }
  12.  
Success #stdin #stdout 0s 5324KB
stdin
Standard input is empty
stdout
45