Count the Unique AB Strings by Permutation
You are given a string s of “a” and “b”s. “a”s can stay “a” or turn into “b”, but “b”s can’t change. Return the number of unique strings that …
Teaching Kids Programming – Using Binary Search to Find K-th Largest Number in Array
January 16, 2021
algorithms, binary search, python, teaching kids programming, youtube video
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Teaching Kids Programming: Videos on Data Structures and Algorithms Find the kth largest element in an unsorted array. Note that it is the kth largest element in the sorted …
Teaching Kids Programming – Sorting a Linked List using Merge Sort (Divide and Conquer)
January 15, 2021
algorithms, python, recursive, teaching kids programming, youtube video
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Teaching Kids Programming: Videos on Data Structures and Algorithms Given a singly linked list of integers node, sort the nodes by their values in ascending order. Constraints n ≤ …
Binary Search Algorithm to Find Next Node on Its Right in a Binary Tree
You are given a binary tree root containing unique values, and an integer target. Find the node with value target and return the node that’s directly right of it …
Teaching Kids Programming – Binary Search Algorithm to Find First Bad Version
January 14, 2021
algorithms, binary search, python, teaching kids programming, youtube video
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Teaching Kids Programming: Videos on Data Structures and Algorithms You are a product manager and currently leading a team to develop a new product. Unfortunately, the latest version of …
Dynamic Programming Algorithms to Compute the Longest Chain of Blocks
You are given a list blocks where each block contains two integers where start < end. You can join two blocks if the end of one is equal to …