제출 #663306

#제출 시각아이디문제언어결과실행 시간메모리
663306Ferid20072020XOR Sum (info1cup17_xorsum)C++17
7 / 100
1675 ms8816 KiB
#include <bits/stdc++.h>

using namespace std;

void solve(){
    int n;
    cin >> n;
    vector<int> A(n);
    for(int i=0 ; i<n ; i++){
        cin >> A[i];
    }
    int Xor = 0;
    for(int i=0 ; i<n ; i++){
        for(int j=i ; j<n ; j++){
            Xor ^= (A[i] + A[j]);
        }
    }
    cout << Xor;
}

signed main(){
    ios_base::sync_with_stdio(false);
    cin.tie(0);
    cout.tie(0);

    solve();

    return 0;
}
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