Submission #1049743

#	Time	Username	Problem	Language	Result	Execution time	Memory
1049743		vjudge1	Art Exhibition (JOI18_art)	C++17	30 / 100	1037 ms	432 KiB

art

#pragma GCC optimize("O3")
#pragma GCC target("avx2")
#include <iostream>
#include <vector>
#include <algorithm>
#include <cmath>
#include <cstdlib>
#include <time.h>
#include <queue>
#include <set>
#include <map>
#include <string>
#include <unordered_map>
#include <unordered_set>
#include <bits/stdc++.h>

#define speed ios_base::sync_with_stdio(0), cin.tie(0)
#define TxtIO freopen("points.in","r",stdin); freopen("points.out","w",stdout);
using namespace std;
const int mod = 998244353;
#define ll long long
const int N=2e5+5;

//mt19937_64 rng(chrono::steady_clock::now().time_since_epoch().count());

ll binpow (ll a, ll n) {
	ll res = 1;
	while (n) {
		if (n & 1)
			res = res * a;
		a = a * a;
		n >>= 1;
	}
	return res;
}




void fcn(){
	ll n;
	cin>>n;
	pair <ll,ll> a[n+3];
	for (int i=0; i<n; i++){
		cin>>a[i].first>>a[i].second;
	}
	
	
	sort(a,a+n);
	ll ans=0;
	
	for (int l=0; l<n; l++){
		
		for (int r=n-1; r>=l; r--){
			
			ll res=0;
			for (int i=l; i<=r; i++){
				res+=a[i].second;
			}
			res-=(-a[l].first+a[r].first);
			
			ans=max(ans,res);
		}
	}
	cout<<ans;
	
	
	
	
	
	
	
}                        

int main(){
	//srand(time(0));
	//fflush(stdout);
//	freopen("bridges.in","r",stdin); freopen("bridges.out","w",stdout);
	
	
//	speed;
	ll T=1;
//	cin>>T;
	for (int i=1; i<=T; i++){
		fcn();	
	}
}




 

/*

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*/

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