Submission #519573

#	Time	Username	Problem	Language	Result	Execution time	Memory
519573		Jomnoi	Exhibition (JOI19_ho_t2)	C++17	100 / 100	60 ms	4996 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
#define DEBUG 0
using namespace std;

class P {
public :
    int s, v;
    P() : s(), v() {}
    P(int S, int V) : s(S), v(V) {}
    bool operator<(const P &o) const {
        return make_pair(v, s) < make_pair(o.v, o.s);
    }
};

int main() {
    cin.tie(0)->sync_with_stdio(0);
    int n, m;
    cin >> n >> m;
    vector <P> p;
    vector <int> C;
    for(int i = 1; i <= n; i++) {
        int s, v;
        cin >> s >> v;
        p.push_back(P(s, v));
    }
    for(int i = 1; i <= m; i++) {
        int c;
        cin >> c;
        C.push_back(c);
    }

    sort(p.begin(), p.end());
    sort(C.begin(), C.end());

    int ans = 0;
    for(int i = n - 1, j = m - 1; i >= 0 and j >= 0; i--) {
        if(p[i].s <= C[j]) {
            ans++;
            j--;
        }
    }
    cout << ans;
    return 0;
}

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