Submission #1174550

#	Time	Username	Problem	Language	Result	Execution time	Memory
1174550		weakweakweak	Gym Badges (NOI22_gymbadges)	C++20	100 / 100	91 ms	6492 KiB

Main

#include <bits/stdc++.h>
using namespace std;
using pii = pair<int,int>;
#define fs first 
#define sc second

int n;
pii a[510000];

int main() {
    ios_base::sync_with_stdio(false); cin.tie(0);
    cin >> n;
    for (int i = 1; i <= n; i++) cin >> a[i].sc;
    for (int i = 1; i <= n; i++) cin >> a[i].fs;
    sort(a+1, a+1+n, [](pii a, pii b){return a.fs+a.sc < b.fs+b.sc;});
    
    priority_queue<int,vector<int>, less<int>> pq;
    int now = 0, ans = 0;
    for (int i = 1; i <= n; i++) {
        // cout << a[i].fs << ' ' << a[i].sc << ' ' << now << '\n';
        if (now <= a[i].fs) {
            now += a[i].sc;
            ans++;
            pq.push(a[i].sc);
        }
        else if (pq.size() and now-pq.top()<=a[i].fs and pq.top()>a[i].sc) {
            now -= pq.top();
            now += a[i].sc;
            pq.pop();
            pq.push(a[i].sc);
        }
    }
    cout << ans << '\n';
}

• Subtask 1: 15 / 15
• Subtask 2: 9 / 9
• Subtask 3: 27 / 27
• Subtask 4: 49 / 49