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  1. #include <iostream>
  2. using namespace std;
  3.  
  4. // Node structure
  5. class Node {
  6. public:
  7.     int data;
  8.     Node* left;
  9.     Node* right;
  10.  
  11.     Node(int value) {
  12.         data = value;
  13.         left = right = nullptr;
  14.     }
  15. };
  16.  
  17. int main() {
  18. 	Node* root = nullptr;
  19.  
  20. if (root != nullptr) {
  21.     cout << "Tree is not empty";
  22. }
  23. else {
  24. 	cout << "Tree is  empty";
  25.  
  26. }
  27. 	return 0;
  28. }
Success #stdin #stdout 0s 5308KB
comments (?)
stdin
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Standard input is empty
stdout
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Tree is  empty
https://ideone.com/RwTIsZ
language:
C++ (gcc 8.3)
created:
2 days ago
visibility:
public

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