Two Pointer Algorithm to Count Triangle Triplets in an Array
Given a list of non-negative integers nums, return the total number of 3 unique numbers that can create a triangle. Constraints n ≤ 1,000 where n is the length …
Teaching Kids Programming – Recursive Algorithm to Merge Two Binary Trees
February 9, 2021
algorithms, python, recursive, teaching kids programming, youtube video
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Teaching Kids Programming: Videos on Data Structures and Algorithms Given two binary trees node0 and node1, return a merge of the two trees where each value is equal to …
K Distinct Window Algorithm by Sliding Window
Given a list of integers nums and an integer k, return a list of count of distinct numbers in each window of size k. Constraints 1 ≤ k ≤ …
Teaching Kids Programming – Compute the Hamming Distance of Two Integers
February 8, 2021
algorithms, bit hacks, Bit Masking, math, python, teaching kids programming, youtube video
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Teaching Kids Programming: Videos on Data Structures and Algorithms The Hamming distance between two integers is the number of positions at which the corresponding bits are different. Given two …
Teaching Kids Programming – Python Function to Check If Valid IPv4 Address
February 7, 2021
algorithms, IP Address, python, teaching kids programming, youtube video
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Teaching Kids Programming: Videos on Data Structures and Algorithms Given a string s, return whether it’s an IPv4 address. IPv4 addresses must follow the format A.B.C.D, where A, B, …
Count the Repeated K-Length Substrings
Given a string s and an integer k, return the number of k-length substrings that occur more than once in s. Constraints n ≤ 100,000 where n is the …