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  1. #include <bits/stdc++.h>
  2. using namespace std;
  3.  
  4. int main() {
  5.     ios_base::sync_with_stdio(false);
  6.     cin.tie(NULL);
  7.  
  8.     int n; 
  9.     cin >> n;
  10.  
  11.     vector<long long> a(n);
  12.     for (int i = 0; i < n; i++) {
  13.         cin >> a[i];
  14.     }
  15.  
  16.     for (int i = 1; i <= n - 1; i++) {
  17.         for (int j = 0; j < n - i; j++) {
  18.             a[j] = a[j] ^ a[j + 1];
  19.         }
  20.     }
  21.  
  22.     cout << a[0];
  23.  
  24.     return 0;
  25. }
Success #stdin #stdout 0.02s 5320KB
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stdin 
Standard input is empty
stdout 
Standard output is empty
https://ideone.com/zVFFWi
language:
C++14 (gcc 8.3)
created:
1 day ago
visibility:
public

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