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Given the roots of two binary trees p and q, return true if the trees are equivalent, otherwise return false.Two binary trees
This problem check if a certain part of a tree is same tree as a given subtree.So before we solve this problem, we need to know how to check if two trees are sa
Binary search tree is great for searching or comparing things?We know using a hash-table we have O(1) for look up, then why study Binary Search Tree?Why is this
Given a binary tree, return true if it is height-balanced and false otherwise.A height-balanced binary tree is defined a
Maximum Depth (Height):Performance Indicator Tells you how efficient your BST operations will beOperations like search, insert, delete take O(h) time, where h i
When the game is over, the King and the pawn go in the same box.
Let me try a different approach with a simpler example.Imagine counting down from 5 to 0:for (i=5; i>=0; i=i-1) { // do something } The loop needs to:Sta
What is Rust?Rust is a system programming language that focuses on speed, memory safety, and parallelism. It was developed by Mozilla and has been gaining popul
Imagine a social network like Facebook, every user is connected to their friends, who are connected to their friends, and so on. Or think about Google Maps navi
You are given an array of integers stones where stones[i] represents the weight of the ith stone.We want to run a simulation on th
You are given an array of distinct integers nums and a target integer target. Your task is to return a list of all unique combinat
Subsets: Given an array nums of unique integers, return all possible subsets of nums.The solution set must not contain duplic
Backtracking solves a similar problems as what dynamic programming solves. The only thing about backtracking is that we care about returning all of the solution
Why Do we Care about Binary Search Tree?It's a fundamental building block for databases and data structures used in Big Tech, Common interview question at tech
First before we looking into the problem, let's first understand the application why is this helpful?Real world ExampleCourse Prerequisites: Finding common prer
Given the roots of two binary trees p and q, return true if the trees are equivalent, otherwise return false.Two binary trees
decode(str) { const result = [] let i = 0 while (i < str.length) { const delimeter = str.indexOf('#', i) const length = str.substring(i, delimeter) const
Implement the Least Recently Used (LRU) cache class LRUCache. The class should support the following operationsLRUCache(int capacity) Initia
You are given the heads of two sorted linked lists list1 and list2.Merge the two lists into one sorted linked list and return the head
You are given a string s and an integer k. You can choose any character of the string and change it to any other uppercase English character. You
Understanding how GPT-3 works gives us a glimpse into the cutting-edge technology shaping how we interact with the world.From powering chatbots and virtual assi
Given an unsorted array of integers nums, return the length of the longest consecutive elements sequence.You must write an algorithm that runs in 
Church numerals are a way of representing natural numbers using lambda calculus. a foundational framework in mathematical logic and computer science. In essence
Redex is a deducible expression. It is a lambda abstraction applied to an argumentReduction replaces a redex with the result of applying the function.Beta Reduc
A formal system used to study functions, variables & how they interact through application & abstraction. It's a foundational mathematical framework tha
