Submission #1181126

#	Time	Username	Problem	Language	Result	Execution time	Memory
1181126		Paz15	Art Exhibition (JOI18_art)	C++20	100 / 100	112 ms	8260 KiB

art

//fast
#include<bits/stdc++.h>
using namespace std;
typedef long long ll;
typedef long double ld;

#define rep(n) for(int i = 0 ; i<n ; i++)
#define all(x) x.begin(),x.end()
#define pb push_back

int main(){
    ios_base::sync_with_stdio(0);
    cin.tie(0);
    int n;
	cin >> n;
	pair<ll,ll> tab[n];
	rep(n){
		cin >> tab[i].first >> tab[i].second;
	}
	sort(tab,tab+n);
	ll w = tab[0].second;
	ll maks = 0;
	maks = tab[0].first;
	ll sum = tab[0].second;
	for (int i = 1 ; i<n ; i++){
		maks = max(maks,tab[i].first-sum);
		sum+=tab[i].second;
		w = max(maks+sum-tab[i].first,w);
	}
	cout << w << '\n';
}

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