Sort an array with sorted sub-arrays. for example: [10, 20, 30, 1, 3, 15, 28, 100, 7, 8].
Developer Internship Interview Questions
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Binary trees - parsing through and storing data in a hash table, and then printing it out based on certain requirements.
Find the triplet that sum to a value
He asked me to build a auto-completor for words ment to bu used in a search engine.
1. Reverse a string in words. For example: given "sky is blue" -> "blue is sky" 2. Convert integer to english words.
Three Sum Problem
A couple of Standard Leetcode Easy-Medium Questions
Given a string, such as ((4+5)*3+2)*91, determine whether it is a valid expression by judging the parenthesis.
Instructions: You are given a k-by-k grid of letters, plus a dictionary of valid words. Your goal is to find all words you can trace out in the grid, where tracing can move up/down/left/right. For any given word, you can use each grid coordinate at most once. Example: Grid: EA BD Dictionary: {BAD, BE, BEAD, BED, DAD} Output: BE, BEAD Not in the output: BAD (diagonal move), DAD (uses bottom-right coordinate twice). Note that in a real scenario, the grid size would be ~15x15, and the dictionary size would be ~10,000.
Is the string a palindrome
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