Submission #737444

#	Time	Username	Problem	Language	Result	Execution time	Memory
737444		josanneo22	Art Exhibition (JOI18_art)	C++17	100 / 100	200 ms	24852 KiB

art

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

#define int long long
#define pb push_back
#define pii pair<int,int>
#define fi first
#define se second
int n; 
vector<pii> a;
vector<int> val;
int get(int x,int y){
	return val[y+1]-val[x];
}
void solve(){
	cin>>n;
	a.resize(n);val.resize(n+2);
	for(auto&x:a) cin>>x.first>>x.second; 
	sort(a.begin(),a.end());
	for(int i=1;i<=n;i++) val[i]=val[i-1]+a[i-1].second;
	int mx=0,ans=0;
	for(int i=0;i<n;i++){
		mx=max(mx,a[i].first-get(0,i-1));
		ans=max(ans,get(0,i)-a[i].first+mx);
	}
	cout<<ans<<'\n';
}
signed main(){
	ios_base::sync_with_stdio(0); cin.tie(0);
  solve();
}

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