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  1. #include <iostream>
  2.  
  3. void switchVar (int & x, int & y) {x+=y; y = x-y; x=x-y;}
  4.  
  5. int main () {
  6.     int x = 3, y= 4;
  7.     switchVar(x, y);
  8.     std::cout << "X is: " << x << std::endl << "Y is: " << y << std::endl;
  9. }
Success #stdin #stdout 0s 15232KB
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stdin
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Standard input is empty
stdout
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X is: 4
Y is: 3
https://ideone.com/ehmZ7P
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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