제출 #1228943

#제출 시각아이디문제언어결과실행 시간메모리
1228943shiovnArt Exhibition (JOI18_art)C++20
100 / 100
108 ms8264 KiB
#include<bits/stdc++.h>
using namespace std;
#define ll long long
#define fi first
#define se second
#define pi pair

const int N=5e5+10;
pair<ll,ll> a[N];

int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(0);

    int n;
    cin>>n;

    for(int i=1;i<=n;i++)
    {
        cin>>a[i].fi>>a[i].se;
    }

    sort(a+1,a+n+1);
    ll ma=LLONG_MIN;
    ll be=LLONG_MIN;
    ll sum=0;

    for(int i=1;i<=n;i++)
    {
        ma=max(ma,a[i].fi-sum);
        sum+=a[i].se;
        be=max(be,sum-a[i].fi+ma);
    }

    cout<<be;




}
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