Find the longest subsequence in a given array of numbers in O(n)
Software Development Engineer Interview Questions
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unlimited supply of coins of different demoninations. pick min number of coins to get given amount.
Reverse a string in-place.
Given an unfair coin, devise an algorithm to produce a fair coin's output.
What is a class?
implement strtok
Imagine you have a string and you want to return False if there are repeat characters in this string, what are the fastest and most space efficient ways to do this. (I clarified and he only wanted to return False if there was a repeat letter or number)
Save a tree to an array
Find count of unique characters in a given string
Given a triangle, determine if its a scalene, equilateral, isosceles or neither... required knowledge of triangle properties, I learnt these properties about two decades ago so ofcourse I was fuzzy on the details, completely unexpected
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