Submission #729352

#	Time	Username	Problem	Language	Result	Execution time	Memory
729352		pcc	Art Exhibition (JOI18_art)	C++14	10 / 100	5 ms	212 KiB

art

#include <bits/stdc++.h>
using namespace std;

#define ll long long
#define pll pair<ll,ll>
#define fs first
#define sc second


/*
void solve(){
	ll n;
	cin>>n;
	pll arr[n];
	for(auto &i:arr){
		cin>>i.fs>>i.sc;
	}
	sort(arr,arr+n);
	ll pref[n];
	pref[0] = arr[0].sc;
	for(int i = 1;i<n;i++)pref[i] = pref[i-1]+arr[i].sc;
	ll ans = pref[0];
	ll big = arr[0].fs;
	for(int i = 1;i<n;i++){
		ans = max(ans,big+pref[i]-arr[i].fs);
		big = max(big,-pref[i-1]+arr[i].fs);
	}
	cout<<ans;
}

*/
void solve(){
	ll n;
	cin>>n;
	pll arr[n];
	for(auto &i:arr)cin>>i.fs>>i.sc;
	ll ans = LLONG_MIN;
	for(int i = 1;i<(1<<n);i++){
		ll amax = 0,amin = 1e18;
		ll sum = 0;
		for(int j = 0;j<n;j++){
			if(i&(1<<j))sum += arr[j].sc,amin = min(amin,arr[j].fs),amax = max(amax,arr[j].fs);
		}
		ans = max(ans,sum-amax+amin);
	}
	cout<<ans;
}
int main(){
	ios::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	int t = 1;
	while(t--)solve();
}

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