Submission #930588

#	Time	Username	Problem	Language	Result	Execution time	Memory
930588		aykhn	Exhibition (JOI19_ho_t2)	C++17	0 / 100	1 ms	600 KiB

joi2019_ho_t2

#include <bits/stdc++.h>

using namespace std;

#define int long long

signed main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(nullptr);
    int n, m;
    cin >> n >> m;
    int b[m];
    array<int, 2> a[n];
    multiset<int> s;
    for (array<int, 2> &x : a) cin >> x[0] >> x[1], s.insert(x[1]);
    for (int &i : b) cin >> i;
    sort(b, b + m);
    sort(a, a + n);
    int j = n - 1, res = 0;
    for (int i = m - 1; i >= 0; i--)
    {
        while (j >= 0 && b[i] < a[j][0]) 
        {
            if (s.find(a[j][1]) != s.end()) s.erase(s.find(a[j][1]));
            j--;
        }
        if (!s.empty()) res++, s.erase(--s.end());
    }
    cout << res << '\n';
}

• Subtask 1: 0 / 10
• Subtask 2: 0 / 40
• Subtask 3: 0 / 50