Teaching Kids Programming: Videos on Data Structures and Algorithms A Set is a data structure to hold unique elements in a collection. In Python we can use set() to …
Given a two-dimensional integer matrix, sort each of the diagonals descending from left to right in ascending order. Constraints n, m ≤ 25 where n and m are the …
Teaching Kids Programming: Videos on Data Structures and Algorithms Introduction to Queue Data structure Queue is a First In First Out (FIFO) data structure. Unlike stack, we use pop(0) …
Given a singly linked list node, return the value of the kth last node (0-indexed). k is guaranteed not to be larger than the size of the linked list. …
Given a list of integers nums, return whether all numbers appear an even number of times. Constraints n ≤ 100,000 where n is the length of nums Example 1 …
Teaching Kids Programming: Videos on Data Structures and Algorithms Introduction to Stack Stack is an important and commonly-used data structure that implements First In Last Out. The first item …