Submission #418386

#	Time	Username	Problem	Language	Result	Execution time	Memory
418386		_Avocado_	Art Exhibition (JOI18_art)	C++14	0 / 100	1 ms	204 KiB

art

#include <bits/stdc++.h>
#include <iostream>
using namespace std;
#define int int64_t

signed main(){
	ios_base::sync_with_stdio(false);
	cin.tie(NULL);
	int n; cin>>n;
	
	vector<pair<int, int>>v;
	
	for(int i = 0; i<n; ++i){
		int a, b; cin>>a>>b;
		v.push_back({a, b});
	}
	
	sort(v.begin(), v.end());
	
	vector<int>prefix(n);
	
	prefix[0] = v[0].second;
	
	for(int i = 1; i<n; ++i) prefix[i] = prefix[i-1] + v[i].second;

	int ans = -1e10;
	
	for(int i = 1; i<n; ++i){
		int cur = prefix[i] - (v[i].first - v[0].first);
		ans = max(ans, cur);
	}
	
	for(int i = 1; i<n-1; ++i){
		int diff = (v[i].first - v[0].first) - prefix[i-1];
		if(diff > 0) ans += diff;
	}
	
	cout<<ans;
	
	
	cout<<'\n';
}

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