Algorithm to Determine if String Halves Are Alike (Same Number of Vowels)
You are given a string s of even length. Split this string into two halves of equal lengths, and let a be the first half and b be the …
Category: algorithms
Depth First Search Algorithm to Compute the Sum of Nodes with Even Grandparent Values
Given a binary tree root, return the sum of all node values whose grandparents have an even value. Constraints 0 ≤ n ≤ 100,000 where n is the number …
Teaching Kids Programming – Prefix Sum Algorithm to Compute the Interval Sums
Teaching Kids Programming: Videos on Data Structures and Algorithms Given an array of numbers, if we want to find out the sum of the interval, we can do this …
Complete an Arithmetic Sequence by Finding Missing Number
You are given a list of integers nums that used to be an arithmetic sequence. Given that a number was removed, and that the number was not the first …
Algorithm to Remove Duplicates in Linked List using Hash Set
Given a singly linked list node, remove nodes with duplicate values while maintaining relative order of the original list. Constraints n ≤ 100,000 where n is the number of …