Submission #1279941

#	Time	Username	Problem	Language	Result	Execution time	Memory
1279941		dhuyyyy	Art Exhibition (JOI18_art)	C++20	100 / 100	142 ms	12180 KiB

art

#include<bits/stdc++.h>
#define fi first
#define se second
#define int long long
using namespace std;

using ll = long long;
using ii = pair<int, int>;
using aa = array<int,3>;

const int N = 5e5+5;

int n, ans = -1e18;

int suf[N];

ii a[N];

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(NULL);cout.tie(NULL);
    cin >> n;
    for (int i = 1; i <= n; i++){
        cin >> a[i].fi >> a[i].se;
    }
    sort(a+1,a+1+n);
    int cur = 0;
    suf[n + 1] = -1e18;
    for (int i = n; i >= 1; i--){
        suf[i] = max(suf[i + 1],- cur - a[i].fi);
        cur += a[i].se;
        ans = max({ans,suf[i + 1] + a[i].fi + cur, a[i].se});
    }
    cout << ans;
    return 0;
}

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