Submission #503170

#	Time	Username	Problem	Language	Result	Execution time	Memory
503170		jk410	Art Exhibition (JOI18_art)	C++17	100 / 100	202 ms	20816 KiB

art

#include <bits/stdc++.h>
using namespace std;
typedef long long ll;
const ll INF=9e18;
struct art{
    ll a,b;
    bool operator<(const art &tmp)const{
        return a<tmp.a;
    }
};
int N;
art A[500001];
ll Ans;
int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    cout.tie(0);
    cin>>N;
    for (int i=1; i<=N; i++)
        cin>>A[i].a>>A[i].b;
    sort(A+1,A+N+1);
    for (int i=1; i<=N; i++)
        A[i].b+=A[i-1].b;
    ll tmp=INF;
    for (int i=1; i<=N; i++){
        tmp=min(tmp,A[i-1].b-A[i].a);
        Ans=max(Ans,A[i].b-A[i].a-tmp);
    }
    cout<<Ans;
    return 0;
}

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