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  1. #include <stdio.h>
  2.  
  3. int main(void) {
  4. int diff;
  5. int roundTo = 100;
  6. int num;
  7. scanf("%i", &num);
  8. int roundedNum = (diff = num%roundTo) > roundTo/2 ? num+(100-diff) : num-diff;
  9. printf("%i", roundedNum);
  10. return 0;
  11. }
  12.  
Success #stdin #stdout 0s 10320KB
stdin
15851
stdout
5115900