Submission #1034117

#	Time	Username	Problem	Language	Result	Execution time	Memory
1034117		vjudge1	Exhibition (JOI19_ho_t2)	C++17	100 / 100	99 ms	4524 KiB

joi2019_ho_t2

#include<bits/stdc++.h>
using namespace std;
const int N = 1e5;
pair<int,int>p[N+5];
int c[N+5];
int main(){
    int n,m;
    cin >> n >> m;
    for(int i = 0; i < n; i++)cin >> p[i].second >> p[i].first;
    sort(p,p+n);
   // for(int i = n-1; i >= 0; i--)cout << p[i].first << " " << p[i].second <<endl;
    for(int i = 0; i < m; i++)cin >> c[i];
    sort(c,c+m);
    //for(int i = m-1; i >= 0; i--)cout << c[i] << endl;
    int j = n-1;
    int dem = 0;
    for(int i = m-1; i >= 0; i--){
        while(j >= 0 && p[j].second > c[i]){
            j--;
           // cout << p[i].second << " " << c[i]<<endl;
        }
        if(j == -1){
            break;
        }
        else {
            dem++;
            j--;
            //cout << endl;
        }
    }
    cout << dem;
}

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