Submission #680852

#	Time	Username	Problem	Language	Result	Execution time	Memory
680852		tvladm2009	Exhibition (JOI19_ho_t2)	C++14	100 / 100	46 ms	4432 KiB

joi2019_ho_t2

#include <bits/stdc++.h>

using namespace std;

typedef long long ll;

int main()
{
#ifdef ONPC
    freopen("input.txt", "r", stdin);
#endif // ONPC

#ifndef ONPC
    ios::sync_with_stdio(0); cin.tie(0); cout.tie(0);
#endif // ONPC

  int n, m;
  cin >> n >> m;
  vector<pair<int, int>> a(n);
  for (int i = 0; i < n; i++)
  {
    cin >> a[i].first >> a[i].second;
  }
  vector<int> frame(m);
  for (int i = 0; i < m; i++)
  {
    cin >> frame[i];
  }
  auto cmp = [&](pair<int, int> i, pair<int, int> j)
  {
    return make_pair(i.second, i.first) < make_pair(j.second, j.first);
  };
  sort(a.begin(), a.end(), cmp);
  sort(frame.begin(), frame.end());
  int ret = 0;
  for (int i = n - 1, j = m - 1; i >= 0 && j >= 0; i--)
  {
    if (frame[j] >= a[i].first)
    {
      ret++;
      j--;
    }
  }
  cout << ret;
  return 0;
}

• Subtask 1: 10 / 10
• Subtask 2: 40 / 40
• Subtask 3: 50 / 50