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Interns Interview Questions
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Write an algorithm that does an in-order traversal of a tree recursively. Now, write the same algorithm iteratively.
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If you were advising a grocery chain on how to find their most loyal customers what data would you want to collect in order to identify these customers?
Implement a simple compression algorithm where repeated letters in a string are represented by a count and the letter. Example: AAACBBD = 3A1C2B1D
Given two nodes in a binary tree, find their first common ancestor. You may not store nodes, and assume that the tree is already created.
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1. How to display two block elements horizontally?
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S (n) is a function. If applied to a number, it sums up all the digits until a single digit is obtained. e.g.: 917=9+1+7=17=8 if D(n) is the resulting summation number i.e. 8 in the above case, find how many such numbers exists if 1
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