제출 #31571

#제출 시각아이디문제언어결과실행 시간메모리
31571minkankHacker (BOI15_hac)C++14
20 / 100
156 ms9828 KiB
#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;
}
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