fork download
copy 
  1. #include <iostream>
  2. using namespace std;
  3. class node
  4. {
  5.     public:
  6.     int data;
  7.     node*left;
  8.     node*right;
  9.     node(int d)
  10.     {
  11.         data=d;
  12.         left=NULL;
  13.         right=NULL;
  14.     }
  15. };
  16. node* buildTree()
  17. {
  18.     int d;
  19.     cin>>d;
  20.     if(d==-1)
  21.     {
  22.         return NULL;
  23.     }
  24.     node *root=new node(d);
  25.     root->left=buildTree();
  26.     root->right=buildTree();
  27.     return root;
  28. }
  29. void print(node *root)
  30. {
  31.     if(root==NULL)
  32.     {
  33.         return;
  34.     }
  35.     cout<<root->data<<" ";
  36.     print(root->left);
  37.     print(root->right);
  38. }
  39. int main() {
  40.     node* root=buildTree();
  41.     print(root);
  42.     return 0;
  43. }
  44.  
Success #stdin #stdout 0s 4296KB
comments (?)
stdin
copy 
3 4 -1 6 -1 -1 5 1 -1 -1 -1
stdout
copy 
3 4 6 5 1
https://ideone.com/3dyuDI
language:
C++14 (gcc 8.3)
created:
6 years ago
visibility:
public

Share or Embed source code

Discover > Sphere Engine API

The brand new service which powers Ideone!

Discover > IDE Widget

Widget for compiling and running the source code in a web browser!