Tag: data structure
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 Every valid email consists of a local name and a domain name, separated by the ‘@’ sign. Besides lowercase letters, …
Given a binary tree root, find the sum of the deepest node values. Constraints n ≤ 100,000 where n is the number of nodes in root Hint: You need …
In order to define a N-ary tree, we need to be able to store the Node value and its children – which is a list of the Node. And …
Implement FreqStack, a class which simulates the operation of a stack-like data structure. FreqStack has two functions: push(int x), which pushes an integer x onto the stack. pop(), which …