Submission #523957

#	Time	Username	Problem	Language	Result	Execution time	Memory
523957		HappyPacMan	Art Exhibition (JOI18_art)	C++14	100 / 100	333 ms	44332 KiB

art

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

int main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);

    int N;
    cin >> N;
    vector<pair<ll,int> > arr(N);
    for(int i=0;i<N;i++){
        cin >> arr[i].first >> arr[i].second;
    }
    sort(arr.begin(),arr.end());
    multiset<ll> mt;
    ll sum = 0;
    for(int i=0;i<N;i++){
        sum += arr[i].second;
        mt.insert(sum-arr[i].first);
    }
    sum = 0;
    ll res = 0;
    for(int i=0;i<N;i++){
        ll last = *prev(mt.end());
        res = max(res,last-sum+arr[i].first);
        sum += arr[i].second;
        mt.erase(mt.find(sum-arr[i].first));
    }
    cout << res << '\n';
}

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