제출 #1342197

#제출 시각아이디문제언어결과실행 시간메모리
1342197NipphitchExhibition (JOI19_ho_t2)C++20
100 / 100
35 ms1552 KiB
#include <bits/stdc++.h>
using namespace std;
const int N=1e5+5;

int n,m,b[N],ans;
pair <int,int> a[N];

signed main()
{
    ios::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> m;
    for(int i=1;i<=n;i++) cin >> a[i].second >> a[i].first;
    sort(a+1,a+1+n,greater <pair <int,int>>());
    for(int i=1;i<=m;i++) cin >> b[i];
    sort(b+1,b+1+m,greater <int>());
    for(int i=1,j=1;i<=n && j<=m;){
        if(a[i].second<=b[j]){
            ans++;
            i++,j++;
        }
        else if(a[i].second>b[j]) i++;
    }
    cout << ans;
}
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