Submission #1071940

#	Time	Username	Problem	Language	Result	Execution time	Memory
1071940		vjudge1	Art Exhibition (JOI18_art)	C++17	100 / 100	127 ms	25276 KiB

art

#include <bits/stdc++.h>
#define int long long
#define boost ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
#define file(s) freopen(s".in", "r", stdin); freopen(s".out", "w", stdout)
const int N=1e5+1;
const int inf=1e18;
const int mod=1e9+7;
using namespace std;
int n;
struct edge{
	int ans,mx,mn,sum;
};
vector<edge>v1;
vector<pair<int,int> >v;
int pr[5*N];
signed main(){
	boost;
	int n;
	cin>>n;
	v.push_back({0,0});
	for(int i=1;i<=n;i++){
		int x,y;
		cin>>x>>y;
		v.push_back({x,y});
	}
	sort(v.begin(),v.end());
	for(int i=1;i<=n;i++){
		pr[i]=pr[i-1]+v[i].second;
	}
	int mx=0;
	int ans=0;
	for(int i=1;i<=n;i++){
		mx=max(mx,v[i].first-pr[i-1]);
		ans=max(ans,pr[i]-v[i].first+mx);
	}
	cout<<ans;
}

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