Submission #1129263

#	Time	Username	Problem	Language	Result	Execution time	Memory
1129263		tsengang	Exhibition (JOI19_ho_t2)	C++20	100 / 100	42 ms	2772 KiB

joi2019_ho_t2

#include <bits/stdc++.h>
#define ll long long
#define ff first
#define ss second
#define pb push_back
#define all(x) x.begin(), x.end()
#define vodka void
#define ertunt return
using namespace std;
int main() {
    ios::sync_with_stdio(0); cin.tie(0);
    ll n,m;
    cin >> n >> m;
    pair<ll,ll>a[n];
    for(ll i = 0; i < n; i++)cin >> a[i].ss >> a[i].ff;
    ll c[m];
    for(ll i = 0; i < m; i++)cin >> c[i];
    sort(a,a+n);
    sort(c,c+m);
    ll ans = 0, cur = m-1;
    for(ll i = n-1; i >= 0; i--){
        if(cur>=0 && c[cur]>=a[i].ss){
            ans++;
            cur--;
        }
    }
    cout << ans;
}

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