Submission #1144344

#	Time	Username	Problem	Language	Result	Execution time	Memory
1144344		dobri_oke	Art Exhibition (JOI18_art)	C++20	0 / 100	0 ms	324 KiB

art

//#pragma GCC target ("avx2")   
//#pragma GCC optimize ("Ofast")   
#include <bits/stdc++.h>   
using namespace std;  
#define int long long  
#define F first 
#define S second 
#define pb push_back 
const int N = 1e6, NN=26;
const int mod=1e9+7;
//int gcd(int a, int b) { if (b == 0) return a; else return gcd(b, a % b); }
//int lcm(int a, int b) { return a / gcd(a, b) * b; }
//int binpow(int a,int b){if(!b)return 1; if(b&1)return a*binpow(a,b-1)%mod; int x=binpow(a,b/2); return x*x%mod;}
signed main(){   
    ios_base::sync_with_stdio(0);   
    cin.tie(0);   
    cout.tie(0);
    int n;
    cin >> n;
    pair < int ,int > a[n+1];
    for(int i=1;i<=n;i++) cin >> a[i].F >> a[i].S;
    sort(a+1, a+n+1);
    int ans=0, sum=0;
    for(int i=1;i<=n;i++){ sum+=a[i].S; ans=max(ans, a[i].S);}
    int l=1, r=n;
    ans=max(ans, sum-(a[n].F-a[1].F));
    while(l<=r){
        if(l==r){
            ans=max(ans, sum);
            break;
        }
        if((sum-a[r].S)-(a[r-1].F-a[l].F)>=(sum-a[l].S)-(a[r].F-a[l+1].F)){
            ans=max(ans, (sum-a[r].S)-(a[r-1].F-a[l].F));
            sum-=a[r].S;
            r--;
        }
        else{
            ans=max(ans, (sum-a[l].S)-(a[r].F-a[l+1].F));
            sum-=a[l].S;
            l++;
        }
    }
    cout << ans;
}

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