BOJ 17924 - Cooking Water [C++]

문제

링크

풀이

#include <iostream>
#include <vector>
using namespace std;
 
bool solve(void) {
  int n; cin >> n;
  vector<int> cnt(1001, 0);
  for (int i=0; i<n; i++) {
    int a, b; cin >> a >> b;
    for (int j=a; j<=b; j++) cnt[j]++;
  }
 
  for (int i=0; i<=1000; i++) {
    if (cnt[i] == n) return true;
  }
  return false;
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  cout << (solve() ? "gunilla has a point" : "edward is right");
  return 0;
}