Submission #705702

#	Time	Username	Problem	Language	Result	Execution time	Memory
705702		ngano_upat_na	Hacker (BOI15_hac)	C++17	0 / 100	1 ms	340 KiB

hac

#include "bits/stdc++.h"
using namespace std;
using ll = long long;

int main() {
    ios::sync_with_stdio(false);
    cin.tie(nullptr);
    
    int n;
    cin >> n;
    vector<ll> v(2*n);
    for (int i=0; i<n; i++) {
        cin >> v[i];
        v[i+n] = v[i];
    }   
    vector<ll> p(2*n+1,0);
    for (int i=1; i<=2*n; i++) {
        p[i] = v[i - 1] + p[i - 1];
    }   
    
    int ceil = n/2;
    if (n % 2 == 1) ceil++;
    int ct = 0;
    vector<ll> ans;
    for (int i=ceil; ; i++) {
        if (ct == n) break;
        ll d = p[i] - p[ct];
        ans.push_back(d);
        ct++;
    }   
    sort(ans.begin(),ans.end());
    cout << ans[n/2];
}   

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