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.
Input Format
Input is managed for you.
Output Format
Output is managed for you.
Constraints
None
Notice
Try First, Check Solution later
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Input
19 50 25 12 n n 37 30 n n n 75 62 n 70 n n 87 n n
Output
30 70