제출 #736493

#제출 시각아이디문제언어결과실행 시간메모리
736493sq00XOR Sum (info1cup17_xorsum)C++14
7 / 100
1672 ms8828 KiB
#include <bits/stdc++.h>
using namespace std;

int main()
{
    cin.tie(0)->sync_with_stdio(0);
//    freopen("div7.in", "r", stdin);
//    freopen("div7.out", "w", stdout);
    int n;
    cin >> n;
    vector<int>v(n);
    for(int i = 0; i < n; i++) {cin >> v[i];}
    int ans = 0;
    for(int i = 0; i < n; i++) {
        for(int e = i; e < n; e++) {
            ans ^= v[i] + v[e];
        }
    }
    cout << ans;
}
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