Submission #1033866

#	Time	Username	Problem	Language	Result	Execution time	Memory
1033866		hehebjp123	Art Exhibition (JOI18_art)	C++14	100 / 100	136 ms	12164 KiB

art

#include<bits/stdc++.h>
#define ll long long
#define fi first
#define se second
#define ii pair<ll,ll>
#define iii pair<ii,ll>
#define pb push_back
using namespace std;
const ll N=5e5+9;
const ll mod=1e9+7;
const ll S=320;
ii a[N];
ll b[N],i,ma,n;
int main()
{
    ios_base::sync_with_stdio(false);
    cin.tie(nullptr);
    cout.tie(nullptr);
 cin>>n;
 for(i=1;i<=n;i++)
    cin>>a[i].fi>>a[i].se;
 sort(a+1,a+n+1);
 // using i
 for(i=1;i<n;i++)
    b[i]=a[i].se+a[i].fi-a[i+1].fi;
ll res=a[1].se;
ma=max(0ll,b[1]);
for(i=2;i<=n;i++)
{
    res=max(res,a[i].se+ma);
    ma=max(0ll,ma+b[i]);
}
cout<<res;
        }
/*
3
2 3
11 2
4 5
2 4 11
3 5 2
*/

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