Submission #788313

#	Time	Username	Problem	Language	Result	Execution time	Memory
788313		12345678	Exhibition (JOI19_ho_t2)	C++17	100 / 100	45 ms	3632 KiB

joi2019_ho_t2

#include <bits/stdc++.h>

using namespace std;

int n, m;

int main()
{
    cin.tie(NULL)->sync_with_stdio(false);
    cin>>n>>m;
    vector<pair<int, int>> v(n);
    vector<int> f(m);
    for (auto &[x, y]:v) cin>>y>>x;
    for (auto &x:f) cin>>x;
    sort(v.begin(), v.end());
    sort(f.begin(), f.end());
    int c=m-1;
    for (int i=n-1; i>=0&&c>=0; i--) if (v[i].second<=f[c]) c--;
    cout<<m-1-c;
}

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