Given n sets of choices: (1,2,3), (2,3,4), (4,5) You pick one element from each set of choices. Generate all possible picking.
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In a binary integer value tree, find the lowest level common ancestor of two values.
Write a method that counts how many elements in an unsorted array are out of order.
Given an array where all numbers except one are repeated, find the number that only occurs once.
Implement integer division without using / or %. Questions about running time. Can you do it faster?
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Given a number n, give me a function that returns the nth fibonacci number. Running time, space complexity, iterative vs. recursive.
Determine if a binary search tree is valid or not.
write scpy function
Given an array with all elements sorted on each individual row and column find the K-th smallest one
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