Submission #1159900

#	Time	Username	Problem	Language	Result	Execution time	Memory
1159900		weakweakweak	Exhibition (JOI19_ho_t2)	C++20	100 / 100	31 ms	1608 KiB

joi2019_ho_t2

// g++ -Wall -Wextra -std=c++17 -o B B.cpp
#include <bits/stdc++.h>
using namespace std;
using ll = long long ;
using pii = pair<int, int>;
using pll = pair<ll, ll>;
#define fs first
#define sc second
#define MP make_pair

int n, m, b[101000];
pii a[101000];

int main() {
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cin >> n >> m;

    for (int i = 1; i <= n; i++)
        cin >> a[i].sc >> a[i].fs;

    for (int i = 1; i <= m; i++)
        cin >> b[i];

    sort(b + 1, b + 1 + m);
    reverse(b + 1, b + 1 + m);
    sort(a + 1, a + 1 + n);
    reverse(a + 1, a + 1 + n);
    int ans = 0, j = 1;

    for (int i = 1; i <= m; i++) {
        while (j <= n) {
            if (a[j].sc <= b[i]) {
                j++;
                ans++;
                break;
            }

            j++;
        }
    }

    cout << ans << '\n';
}

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