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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. void swap(int &a, int &b);
  5. int &max(int &a, int &b);
  6.  
  7. int main() {
  8. 	int a = 12;
  9. 	int b = 99;
  10.  
  11. 	cout << a << ' ' << b << endl;	
  12.  
  13. 	swap(a, b);
  14.  
  15. 	cout << a << ' ' << b << endl;	
  16.  
  17. 	max(a, b) = 100;
  18.  
  19. 	cout << a << ' ' << b << endl;	
  20.  
  21. 	return 0;
  22. }
  23.  
  24. void swap(int &a, int &b) {
  25. 	int t = a;
  26. 	a = b;
  27. 	b = t;
  28. }
  29.  
  30. int &max(int &a, int &b) {
  31. 	if (a > b) {
  32. 		return a;
  33. 	} else {
  34. 		return b;
  35. 	}
  36. }
  37.  
  38.  
Success #stdin #stdout 0s 3340KB
comments (?)
stdin 
Standard input is empty
stdout 
12 99
99 12
100 12
https://ideone.com/EHr2Pa
language:
C++ (gcc 8.3)
created:
10 years ago
visibility:
public

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