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193030

Repeating number check XOR

May 8th, 2020
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C++ 0.25 KB | None | 0 0
  1. // Example program
  2. #include <iostream>
  3. #include <string>
  4. #include <vector>
  5. using namespace std;
  6. vector <int> vec{3,2,3,2,1};
  7. int main()
  8. {
  9.     int ans = 0;
  10.     for(int i =0; i<vec.size(); i++)
  11.     {
  12.         ans ^=vec.at(i);
  13.     }
  14.   cout << ans;
  15. }
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