BOJ 20571 - Elevators [C++]

문제

링크

풀이

#include <iostream>
#include <string>
using namespace std;
 
int solve(void) {
  string s; int n; cin >> s >> n;
 
  if (n == 1) return 0;
  if (s == "residential") return (n + 4) / 5;
  if (s == "commercial") return (n + 6) / 7;
  return (n + 3) / 4;
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  cout << solve();
  return 0;
}