Given two strings, find if they differ by exactly two letters.
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Given a string, return true if after jumbling/rearranging the characters of the string will it be a palindrome. and false if not. eg: given string "evlel", it can be rearranged to "level" and thus it is a palindrome, and return true. eg: 1234 cannot be rearranged to become a palindrome hence false.
Find the max k elements in an unsorted array.
Write a function to tell if three points are colinear.
Write a routine that does secret santa in O(N) time.
Giving you a starting position on a chessboard. Giving you an end position. If you are only allowed to walk diagonally, how many steps do you need to take to get to the end position?
Given a very long string composed of numbers as characters, find the four character substring that has the largest multiple. For example, given the string "809723", the two char substring with the largest multiple is "97", having a multiple 9*7 = 63.
questions based on your test, problem solving approach, java multithreading, query optimization etc.
How would you pick the middle element of a list
Write a piece of code to find the square root of a number.
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