Q) How would you all values from the nodes of a given binary tree into a string and then deserialize the string and put it back in the binary tree?
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Find a longest Palindrome in a given string.
Find depth of a binary tree
Reverse a linked list
Given a list of points in 2D and a single reference point, find k nearest neighbors. No code required (iirc).
Find the max number in an array between start and end. The function would like: findMaxbetween(start, end, array): return maxNumber
Write code to find the nth fibonacci number.
Given a 5x5 board containing random characters, find all words that can be formed from consecutive adjacent (diagonals count) characters.
different between array and heap
in an array of characters find the character that is repeated the most
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