제출 #852020

#제출 시각아이디문제언어결과실행 시간메모리
852020AtabayRajabliXOR Sum (info1cup17_xorsum)C++17
0 / 100
168 ms8248 KiB
#include <bits/stdc++.h>
#define endll '\n'
using namespace std;

signed main()
{
    long long n;
    cin >> n;

    vector<long long> a(n, 0);

    for(int i = 0; i<n; i++)
    {
        cin >> a[i];
    }

    long long line = 0, orr = 0;
    for(int i = 0; i<n; i++)
    {
        line ^= a[i];
        orr |= (a[i] << 1);
    }

    cout << orr - line << endll;
}
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