제출 #798418

#제출 시각아이디문제언어결과실행 시간메모리
798418AlkaratArt Exhibition (JOI18_art)C++14
100 / 100
161 ms20856 KiB
#include <bits/stdc++.h>
#define ll long long
#define f first
#define s second
const int N=5e5+10;
using namespace std;
int n;
pair<ll,ll>p[N];
int main()
{
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>n;
    for(int i=1; i<=n; i++) cin>>p[i].f>>p[i].s;
    sort(p+1,p+n+1);
    for(int i=1; i<=n; i++) p[i].s+=p[i-1].s;
    ll mn=-p[1].f,res=0;
    for(int i=1; i<=n; i++)
    {
        res=max(res,-p[i].f+p[i].s-mn);
        mn=min(mn,-p[i+1].f+p[i].s);
    }
    cout<<res;
}
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