| 10 | |
| 11 | |
| 12 | struct Node *newNode(int item) |
| 13 | { |
| 14 | struct Node *temp = (struct Node *)malloc( |
| 15 | sizeof(struct Node)); |
| 16 | temp->data = item; |
| 17 | temp->left = temp->right = NULL; |
| 18 | return temp; |
| 19 | } |
| 20 | |
| 21 | // left view of a binary tree. |
| 22 | void leftViewUtil(struct Node *root, |