Category: data structure
Given a singly linked list node, return its length. The linked list has fields next and val. Constraints n ≤ 100,000 where n is the number of nodes in …
Teaching Kids Programming: Videos on Data Structures and Algorithms Design a HashMap without using any built-in hash table libraries. Implement the MyHashMap class: MyHashMap() initializes the object with an …
Teaching Kids Programming: Videos on Data Structures and Algorithms There is a bi-directional graph with n vertices, where each vertex is labeled from 0 to n – 1 (inclusive). …
Teaching Kids Programming: Videos on Data Structures and Algorithms Given a list of integers nums, return whether it represents a max heap. That is, for every i we have …
Trie aka Prefix Tree is a data structure helps to search a word or prefix in a list of strings. The following declars the struct (class) type of Trie …