제출 #1156904

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
1156904		Pacybwoah	Exhibition (JOI19_ho_t2)	C++20	100 / 100	53 ms	1608 KiB

joi2019_ho_t2

#include<iostream>
#include<algorithm>
#include<utility>
#include<vector>
using namespace std;
typedef long long ll;
int main(){
    ios::sync_with_stdio(false);
    cin.tie(0);
    int n, m;
    cin >> n >> m;
    vector<pair<int, int>> vec(n);
    for(int i = 0; i < n; i++) cin >> vec[i].second >> vec[i].first;
    sort(vec.begin(), vec.end());
    vector<int> fr(m);
    for(int i = 0; i < m; i++) cin >> fr[i];
    sort(fr.begin(), fr.end());
    int l = 0, r = min(n, m);
    while(l < r){
        int mid = ((l + r) >> 1) + 1;
        int ptr = m - mid;
        for(auto &[val, sz]: vec){
            if(ptr < m && sz <= fr[ptr]) ptr++;
        }
        if(ptr == m) l = mid;
        else r = mid - 1;
    }
    cout << l << "\n";
}
// g++ -std=c++17 -Wall -Wextra -Wshadow -fsanitize=undefined -fsanitize=address -o run pB.cpp

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