Submission #1289754

#	Time	Username	Problem	Language	Result	Execution time	Memory
1289754		haha	Art Exhibition (JOI18_art)	C++20	50 / 100	1096 ms	12108 KiB

art

#include<bits/stdc++.h>
#define f first
#define s second
#define ll long long
using namespace std;
const int maxn=5e5+5;
const int MOD=1e9+7;

int n;
pair<ll,int> p[maxn];
ll sum[maxn],Max[maxn];

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++) sum[i]=sum[i-1]+p[i].s;
    ll ans=-1e18;
    /*
    Max[1]=sum[0]+p[1].f;
    for(int i=2;i<=n;i++){
        ans=max(ans,sum[i]-p[i].f+Max[i-1]);
        Max[i]=max(Max[i-1],-sum[i-1]+p[i].f);
    }
    */
    for(int i=2;i<=n;i++){
        for(int j=1;j<=i;j++){
            ans=max(ans,sum[i]-sum[j-1]-p[i].f+p[j].f);
        }
    }
    cout<<ans;
}

• Subtask 1: 10 / 10
• Subtask 2: 20 / 20
• Subtask 3: 20 / 20
• Subtask 4: 0 / 50