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  1. // C++ program to illustrate 
  2. // size() function on set 
  3. #include <bits/stdc++.h> 
  4. using namespace std; 
  5.  
  6. int main() 
  7. { 
  8. 	// Take any two sets 
  9. 	set<char> set1, set2; 
  10. 	for (int i = 0; i < 4; i++) { 
  11. 		set1.insert('a' + i); 
  12. 	} 
  13. 	set1.insert('a');
  14. 	// Printing the size of sets 
  15. 	cout << "set1 size: " << set1.size(); 
  16. 	cout << endl; 
  17. 	cout << "set2 size: " << set2.size(); 
  18. 	return 0; 
  19. } 
  20.  
Success #stdin #stdout 0s 4232KB
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stdin
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Standard input is empty
stdout
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set1 size: 4
set2 size: 0
https://ideone.com/TIJkHD
language:
C++14 (gcc 8.3)
created:
4 years ago
visibility:
public

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