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Can you solve this real interview question? Find the Winner of the Circular Game - There are n friends that are playing a game. The friends are sitting in a circle and are numbered from 1 to …

Given an array nums with n objects colored red, white, or blue, sort them in-place so that objects of the same color are adjacent, with the colors in the order red, white, and blue. We will use …

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Can you solve this real interview question? Subsets II - Given an integer array nums that may contain duplicates, return all possible subsets (the power set). The ...

Given an integer n, return the number of structurally unique BST's (binary search trees) which has exactly n nodes of unique values from 1 to n. Example 1: Input: n = 3 Output: 5 Example 2: …

However, the trick really is to not use any additional space than what is already available to use. Sometimes, multiple passes over the input array help find the solution. However, there's an …

Can you solve this real interview question? Ransom Note - Given two strings ransomNote and magazine, return true if ransomNote can be constructed by using the letters from magazine …

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So I've seen a lot of posts recently asking how to get good at leetcode. I see countless posts from beginners who don't know how to start and panic at not being able to solve easies despite …