Submission #31571

#	Time	Username	Problem	Language	Result	Execution time	Memory
31571		minkank	Hacker (BOI15_hac)	C++14	20 / 100	156 ms	9828 KiB

hac

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

const int N = 5e5 + 5;

int s[2 * N], a[2 * N], n;

int main() {
    cin >> n;
    for(int i = 1; i <= n; ++i) cin >> a[i], a[i + n] = a[i];
    for(int i = 1; i <= 2 * n; ++i) s[i] = s[i - 1] + a[i];
    int len = (n + 1) / 2, ans = 2e9;
    for(int i = n + 1 - len + 1; i <= n + 1; ++i) ans = min(ans, s[i + len - 1] - s[i - 1]);
    cout << ans;
}

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