제출 #775173

#	제출 시각	아이디	문제	언어	결과	실행 시간	메모리
775173		kirakaminski968	Art Exhibition (JOI18_art)	C++17	100 / 100	162 ms	24672 KiB

art

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

int main()
{
    ios_base::sync_with_stdio(0); cin.tie(0); cout.tie(0);
    int N; cin >> N;
    vector<pair<ll,ll>> art(N+1);
    for(int i = 1;i<=N;++i) cin >> art[i].first >> art[i].second; //first is size, second is value
    sort(art.begin(),art.end()); //sort by size
    vector<ll> pref(N+1); pref[0] = 0;
    for(int i = 1;i<=N;++i) pref[i] = pref[i-1]+art[i].second;
    ll ans = 0, cur = art[1].first;
    for(int i = 1;i<=N;++i){
        cur = max(cur,art[i].first-pref[i-1]);
        ans = max(ans,pref[i]-art[i].first+cur);
    }
    cout << ans << "\n";
    return 0;
}

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