Print Single Child Nodes
easy
1. You are given a partially written BinaryTree class. 2. You are required to complete the body of printSingleChildNodes function. The function is expected to print in separate lines, all such nodes which are only child of their parent. Use preorder for traversal. 3. Input and Output is managed for you.
Constraints
None
Format
Input
Input is managed for you.
Output
Output is managed for you.
Example
Sample Input
19
50 25 12 n n 37 30 n n n 75 62 n 70 n n 87 n n
Sample Output
30
70
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