Submission #723546

#	Time	Username	Problem	Language	Result	Execution time	Memory
723546		yahyobekabdunazarov	Hacker (BOI15_hac)	C++17	0 / 100	1 ms	340 KiB

hac

#include <bits/stdc++.h>
#define int long long
using namespace std;
const int MAXN = 5e5 + 9;
int a[MAXN], dp[MAXN];
bool used[MAXN];

signed main(){ 
	int n;
	cin >> n;
	for(int i = 0; i < n; i++){
		cin >> a[i];
		dp[i + 1] = dp[i] + a[i];
	}
	priority_queue<int> pq;
	for(int i = 0; i < n; i++){
		pq.push(dp[min(i + n / 2 + n % 2, n)] - dp[i] + dp[max(i + n / 2 + n % 2 - n, 0ll)]);
	}
	pq.pop();
	cout << pq.top();
	return 0;
}

• Subtask 1: 0 / 20
• Subtask 2: 0 / 20
• Subtask 3: 0 / 20
• Subtask 4: 0 / 40