Submission #161356

#	Time	Username	Problem	Language	Result	Execution time	Memory
161356		jovan_b	Exhibition (JOI19_ho_t2)	C++17	100 / 100	157 ms	8508 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
using namespace std;

typedef long long ll;
typedef long double ld;

multiset <pair <int, int>> q;

int frame[100005];

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.precision(10);
    cout << fixed;

    int n, m;
    cin >> n >> m;
    for(int i=1; i<=n; i++){
        int a, b;
        cin >> a >> b;
        q.insert({-b, -a});
    }
    for(int i=1; i<=m; i++){
        cin >> frame[i];
    }
    sort(frame+1, frame+1+m);
    int res = 0;
    for(int i=m; i>=1; i--){
        while(!q.empty()){
            pair <int, int> par = *q.begin();
            q.erase(q.begin());
            if(-par.second > frame[i]) continue;
            res++;
            break;
        }
    }
    cout << res;
    return 0;
}

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