BOJ 11874 - ZAMKA [C++]

문제

링크

풀이

#include <iostream>
using namespace std;
 
int calc(int n) {
  int sum = 0;
  while (n) {
    sum += n % 10;
    n /= 10;
  }
  return sum;
}
 
void solve(void) {
  int l; cin >> l;
  int d; cin >> d;
  int x; cin >> x;
 
  for (int i=l; i<=d; i++) {
    if (calc(i) == x) {
      cout << i << "\n";
      break;
    }
  }
 
  for (int i=d; i>=l; i--) {
    if (calc(i) == x) {
      cout << i;
      break;
    }
  }
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  solve();
  return 0;
}