Submission #48909

#	Time	Username	Problem	Language	Result	Execution time	Memory
48909		faustaadp	Art Exhibition (JOI18_art)	C++17	100 / 100	332 ms	243796 KiB

art

#include<bits/stdc++.h>
#define ll long long
#define pb push_back
#define mp make_pair
#define fi first
#define se second
using namespace std;
ll n,i,ta,tb,tem,has;
pair<ll,ll> a[505050];
vector<ll> v;
int main()
{
	ios_base::sync_with_stdio(0);cin.tie(0);cout.tie(0);
	cin>>n;
	for(i=1;i<=n;i++)
	{
		cin>>ta>>tb;
		a[i]=mp(ta,tb);
	}
	sort(a+1,a+1+n);
	for(i=1;i<=n;i++)
	{
		v.pb(-a[i].se);
		v.pb(a[i].se);
		if(i<n)
			v.pb((a[i+1].se)-(a[i+1].fi-a[i].fi));
	}
	for(i=0;i<v.size();i++)
	{
		tem+=v[i];
		tem=max(tem,0LL);
		has=max(has,tem);
	}
	cout<<has<<"\n";
}

Compilation message (stderr)

art.cpp: In function 'int main()':
art.cpp:28:11: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
  for(i=0;i<v.size();i++)
          ~^~~~~~~~~

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