Binary search problem
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Sum of leaf nodes of a binary tree without using recursion or stack space. (Constant space solution)
Palindrome task
Scatter cities on a 2D plot. Find the path to cover most cities. Can only move left to right or down to up.
How can you find median of an unsorted array in linear time, without sorting the array?
Reverse a linked list
1. Variation of LCS. 2. Merge Binary Trees.
If Susan and her 4 friends went on a trip and they each had 50 dollars, but different spending, how can they pay each other back? (See, it doesn't make sense).
Data Structures and Algorithms. They like to ask several questions that build on each other
Regular data structures and algorithm questions. Know your dynamic programming!
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