Submission #1158645

#	Time	Username	Problem	Language	Result	Execution time	Memory
1158645		brover29	Art Exhibition (JOI18_art)	C++17	100 / 100	113 ms	8264 KiB

art

#include <bits/stdc++.h>
//qwerty47924692
using namespace std;
using ll = long long;
const ll N=5e5+29;
const string br="617283";
#define sz(a)(ll)a.size()
#define f first
#define s second
ll n;
pair<ll,ll>a[N];
int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);

    cin>>n;
    for(ll i=1;i<=n;i++){
        cin>>a[i].f>>a[i].s;
    }
    sort(a+1,a+1+n);
    ll ans=0;
    ll mx=0;
    ll pref=0;
    for(ll i=1;i<=n;i++){
       mx=max(mx,a[i].f-pref);
       pref+=a[i].s;
       ans=max(ans,mx+pref-a[i].f);
    }
    cout<<ans;
}

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