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  1. #include <iostream>
  2. #include <vector>
  3.  
  4. struct MyNum
  5. {
  6. 	int num;
  7. 	MyNum(int i) : num(i) {}
  8. 	bool operator<(const MyNum& rhs) const
  9. 	{
  10. 		return num < rhs.num;
  11. 	}
  12. 	bool operator==(const MyNum& rhs) const
  13. 	{
  14. 		return num == rhs.num;
  15. 	}
  16. };
  17.  
  18. void test(const std::vector<MyNum>& a, const std::vector<MyNum>& b)
  19. {
  20. 	if (a == b)
  21. 	{
  22. 		std::cout << "a == b\n";
  23. 	}
  24. 	else if (a < b)
  25. 	{
  26. 		std::cout << "a < b\n";
  27. 	}
  28. 	else if (a > b)
  29. 	{
  30. 		std::cout << "a > b\n";
  31. 	}
  32. }
  33.  
  34. int main()
  35. {
  36. 	std::vector<MyNum> a1{ 1,2,3,4,5 };
  37. 	std::vector<MyNum> a2{ 1,2,3,4,5 };
  38. 	std::vector<MyNum> b1{ 1,2,3,4,6 };
  39. 	std::vector<MyNum> b2{ 1,2,3,4,4 };
  40. 	test(a1, a2);
  41. 	test(a1, b1);
  42. 	test(a1, b2);
  43. 	return 0;
  44. }
  45.  
Success #stdin #stdout 0s 15240KB
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stdin
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Standard input is empty
stdout
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a == b
a < b
a > b
https://ideone.com/rA2z4g
language:
C++14 (gcc 8.3)
created:
7 years ago
visibility:
public

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