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Teaching Kids Programming: Videos on Data Structures and Algorithms Given an integer n, return true if and only if it is an Armstrong number. The k-digit number n is …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a string s, return the first non-repeating character in it and return its index. If it does not exist, …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a singly linked list node whose values are integers, determine whether the linked list forms a palindrome. Constraints n …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a binary tree root, return the maximum sum of the integers that can be obtained given no two integers …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a list of integers nums, return the number of times that the list changes from positive-to-negative or negative-to-positive slope. …