Submission #1137047

#	Time	Username	Problem	Language	Result	Execution time	Memory
1137047		Xiaoyang	Art Exhibition (JOI18_art)	C++17	100 / 100	134 ms	8652 KiB

art

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

#define fi first
#define se second
#define pii pair<int,int>
#define pll pair<long long,long long>
#define pb push_back
#define debug(x) cerr<<#x<<"="<<x<<endl
#define pq priority_queue
#define inf 1e18;
#define rep(i,a,b) for (ll i=a;i<(b);i++)
#define MP make_pair
#define SZ(x) (int(x.size()))
#define mod 1000000007
#define ALL(x) x.begin(),x.end()
#define endl "\n"
void inc(ll &a,ll b) {a=(a+b)%mod;}
void dec(ll &a,ll b) {a=(a-b+mod)%mod;}
int lowbit(ll x) {return x&(-x);}




int main(){
	ios::sync_with_stdio(0);
	cin.tie(0);
	ll n;cin>>n;
	vector<pll>alist;
	rep(i,0,n){
		ll a,b;cin>>a>>b;
		alist.pb(MP(a,b));
	}
	sort(ALL(alist));
	ll ans=0,sum=0,mn=inf;
	rep(i,0,n){
		mn=min(mn,sum-alist[i].fi);
		sum+=alist[i].se;
		ans=max(ans,sum-alist[i].fi-mn);
	}
	cout<<ans<<endl;
	return 0;
}

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