Submission #678773

#	Time	Username	Problem	Language	Result	Execution time	Memory
678773		hello_there_123	Art Exhibition (JOI18_art)	C++17	100 / 100	529 ms	33116 KiB

art

#include<bits/stdc++.h>
using namespace std;
#define int long long
main(){
	int n;
	cin>>n;
	vector<pair<int,int> >v2,v;
	int sum = 0;
	for(int i=0;i<n;i++){
		int a,b;
		cin>>a>>b;
		v2.push_back(make_pair(a,b));
	}
	sort(v2.begin(),v2.end());
	v.push_back(make_pair(0,0));
	for(int i=0;i<n;i++){
		sum+=v2[i].second;
		v.push_back(make_pair(v2[i].first,sum));
	}
	int ans =0;
	int maxi = -1e9;
	for(int i=1;i<=n;i++){
		maxi = max(maxi,v[i].first-v[i-1].second);
		ans = max(ans,v[i].second-v[i].first+maxi);
	}
	cout<<ans;
}

Compilation message (stderr)

art.cpp:4:1: warning: ISO C++ forbids declaration of 'main' with no type [-Wreturn-type]
    4 | main(){
      | ^~~~

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