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  1. #include <iostream>
  2.  
  3. void swap(int &a, int &b)
  4. {
  5.     int tmp = a;
  6.     a = b;
  7.     b = tmp;
  8. }
  9.  
  10. int main()
  11. {
  12. 	int a = 10;
  13. 	int b = 20;
  14.  
  15. 	std::cout<< "[a, b]: ["<< a<< ", "<< b<< "]\n";
  16.  
  17. 	swap(a, b);
  18.  
  19. 	std::cout<< "[a, b]: ["<< a<< ", "<< b<< "]\n";
  20. 	return 0;
  21. }
Success #stdin #stdout 0s 3296KB
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Standard input is empty
stdout
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[a, b]: [10, 20]
[a, b]: [20, 10]
https://ideone.com/cHXOlf
language:
C++14 (gcc 8.3)
created:
10 years ago
visibility:
secret

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