Submission #1231480

#	Time	Username	Problem	Language	Result	Execution time	Memory
1231480		Malix	Art Exhibition (JOI18_art)	C++20	100 / 100	108 ms	8264 KiB

art

#include <bits/stdc++.h>
using namespace std;
 
typedef long long ll;
typedef vector<int> vi;
typedef vector<vi> vii;
typedef pair<int,int> pi;
typedef vector<pi> pii;
typedef tuple<int,int,int> ti;
typedef vector<ll> li;
typedef vector<li> lii;
 
#define REP(i,a,b) for(int i=a;i<b;i++)
#define F first
#define S second
#define PB push_back
#define LSOne(s) ((s)&(-s))
#define all(x) (x).begin(),(x).end()
 
ll INF=1000000000000000010;
int inf=1e9+10;
ll M=1e9+7;

int main(){
    ios::sync_with_stdio(0);
    cin.tie(0);
    int n;cin>>n;
    vector<pair<ll,ll>> a(n);
    REP(i,0,n)cin>>a[i].F>>a[i].S;
    sort(all(a));
    ll ans=0,k=a[0].F;
    REP(i,0,n)ans=max(ans,a[i].S);
    REP(i,1,n)a[i].S+=a[i-1].S;
    REP(i,1,n){
        ans=max(ans,a[i].S-a[i].F+k);
        k=max(k,a[i].F-a[i-1].S);
    }
    cout<<ans;
}

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