제출 #678521

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
678521		vjudge1	Art Exhibition (JOI18_art)	C++17	100 / 100	170 ms	8148 KiB

art

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;

signed main(){
    cin.tie(0)->sync_with_stdio(0);
    int n; cin >> n;
    vector<pair<ll, ll>> a(n);
    for (int i=0; i<n; i++)
        cin >> a[i].first >> a[i].second;
    sort(a.begin(), a.end());
    ll pfs = 0;
    for (int i=0; i<n; i++)
        pfs += a[i].second;

    ll max_after = LLONG_MIN, max_val = LLONG_MIN;
    for (int i=n-1; i>=0; i--){
        max_after = max(max_after, pfs - a[i].first);
        pfs -= a[i].second;
        max_val = max(max_val, max_after + a[i].first - pfs);
    }
    cout << max_val << "\n";
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 50 / 50