Submission #808844

#	Time	Username	Problem	Language	Result	Execution time	Memory
808844		annabeth9680	Art Exhibition (JOI18_art)	C++17	100 / 100	156 ms	24652 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);
    for(int i = 0;i<N;++i) cin >> art[i].first >> art[i].second;
    sort(art.begin(),art.end());
    vector<ll> pref(N+1); pref[0] = 0;
    for(int i = 1;i<=N;++i){
        pref[i] = pref[i-1]+art[i-1].second;
    }
    ll cur = -1, ans = 0;
    for(int i = 0;i<N;++i){
        cur = max(cur,art[i].first-pref[i]);
        ans = max(ans,pref[i+1]-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