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  1. #include <stdio.h>
  2.  
  3. int main() {
  4.     int n, answer=1001, sum, count;
  5.     scanf("%d", &n);
  6.  
  7.     for (int i=0;i*5<=n;i++){
  8.         sum = i*5;
  9.         count = i;
  10.         while (sum<n){
  11.             sum += 3;
  12.             count++;
  13.         }
  14.         if (sum == n){
  15.             if (answer > count){
  16.                 answer = count;
  17.             }
  18.         }
  19.     }
  20.     if (answer == 1001){
  21.         answer = -1;
  22.     }
  23.     printf("%d", answer);
  24. }
Success #stdin #stdout 0s 5304KB
comments (?)
stdin 
4999
stdout 
-1
https://ideone.com/sp8AHy
language:
C (gcc 8.3)
created:
174 days ago
visibility:
public

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