Sum of leaves#10432
Given an array of integers. Create a Binary Search Tree from these numbers. If the number is already in the tree, do not insert it (no duplicates).
Find the sum of all leaves in a tree.
The first line contains number n~(1 \le n \le 1000). The second line contains integers.
Create the Binary Search Tree from input data. Print the sum of all leaves in a tree.
The sum of leaves equals to 1 + 5 + 11 = 17.
Example 1