Submission #229528

#	Time	Username	Problem	Language	Result	Execution time	Memory
229528		nickmet2004	Art Exhibition (JOI18_art)	C++11	100 / 100	241 ms	15480 KiB

art

#include<bits/stdc++.h>
#define ll long long
#define f first
#define s second

using namespace std;

const int N = 5e5 + 5;

int n;
pair<ll , ll> p[N];
long long pr[N];

int main (){
    ios_base::sync_with_stdio(0); cin.tie(0);
    cin >> n;
    for(int i = 0; i < n; ++i) cin >> p[i].f >> p[i].s;
    sort(p , p + n);
    for(int i = n - 1; i >= 0; --i){
        pr[i] = pr[i + 1] + p[i].s;
    }
    long long MN = 1e18;
    long long MX = -1e18;
    for(int i = n - 1; i >= 0; --i){
        MN = min(MN , pr[i + 1] + p[i].f);
        MX = max(MX , pr[i] - MN + p[i].f);
    }
    cout << MX << endl;
return 0;
}

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