BOJ 17224 - APC는 왜 서브태스크 대회가 되었을까? [C++]

문제

링크

풀이

#include <iostream>
#include <queue>
using namespace std;
 
void solve(void) {
  int n, l, k; cin >> n >> l >> k;
 
  priority_queue<int> pq;
  while (n--) {
    int sub1, sub2; cin >> sub1 >> sub2;
    if (sub2 <= l) pq.push(140);
    else if (sub1 <= l) pq.push(100);
  }
 
  int ans = 0;
  while (k-- && !pq.empty()) {
    ans += pq.top();
    pq.pop();
  }
  cout << ans;
}
 
int main(void) {
  ios::sync_with_stdio(false);
  cin.tie(nullptr);
 
  solve();
  return 0;
}