BOJ 1673 - 치킨 쿠폰 [C++]

문제

링크

풀이

#include <iostream>
using namespace std;
 
void solve(void) {
  int n, k;
 
  while (cin >> n >> k) {
    int ans = 0, cnt = 0;
    while (n > 0) {
      ans += n;
      cnt += n;
      n = cnt / k;
      cnt %= k;
    }
    cout << ans << "\n";
  }
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  solve();
  return 0;
}