Submission #256361

#	Time	Username	Problem	Language	Result	Execution time	Memory
256361		Osama_Alkhodairy	Exhibition (JOI19_ho_t2)	C++17	100 / 100	92 ms	4600 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
using namespace std;
#define finish(x) return cout << x << endl, 0
#define ll long long

int n, m;
vector <pair <int, int> > a;
vector <int> b;

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cin >> n >> m;
    a.resize(n);
    for(auto &i : a) cin >> i.second >> i.first;
    b.resize(m);
    for(auto &i : b) cin >> i;
    sort(a.begin(), a.end());
    sort(b.begin(), b.end());
    int ans = 0;
    int l = n - 1, r = m - 1;
    while(l >= 0 && r >= 0){
        if(b[r] >= a[l].second){
            ans++;
            l--;
            r--;
        }
        else l--;
    }
    cout << ans << endl;
}

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