#Unisala universe
馃 Why Are You Learning This?The minimum-weight arborescence (MWA) problem is a fundamental problem in graph theory with applications in:Network desig
Let me walk you through the different variations of the LCA problem and how to solve each one with slight modifications to the core algorithm.1. Basic LCA Probl
Greedy algorithms:The class of algorithms that make locally optimal choices at each step with the hope that these choices will lead to a globally optimal soluti
You are given a non-negative integer array nums. In one operation, you must:Choose a positive integer x such that x is less than or equ
1. What Are We Talking About?The 132 pattern is a problem where we need to find a subsequence of three numbers in an array (nums[i], nums[j],&nbs
Situation:You are given a sorted array of integers where every element appears exactly twice, except for one element that appears only once.
In the world of computer science and mathematics, some problems are deceptively simple to describe but incredibly challenging to solve.One such problem is the&n
Greedy algorithm only applies to the optimization problem.Greedy algorithm makes the decision at every point choosing the local minimum or maximum depending on
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
/** * @param {character[][]} grid * @return {number} */var numIslands = function(grid) { let count = 0 for(let i = 0; i < grid.length; i++){
You are given an m x n grid where each cell can have one of three values:0 representing an empty cell,1 representing a fresh orange, or
Thy why???Let's see the real world usage of this solution. Real-World ApplicationsCourse Scheduling: The problem directly models real-world scenarios, suc
"""Given a string s, reverse only all the vowels in the string and return it.The vowels are 'a', 'e', 'i', 'o', and 'u', and they can appear in both lower and u
Imagine this: You鈥檙e in a coding interview at your dream company. The interviewer slides you a problem about scheduling meetings or merging overlapping interval
When the game is over, the King and the pawn go in the same box.
If you stack several restricted Boltzmann machine on the top of each other then we form a deep belief networkInput layers -> suplied to 1st RBM -> inputs
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
You have intercepted a secret message encoded as a string of numbers. The message is decoded via the following mapping:"1" -> 'A'"2" -> 'B'"25"
The algorithm discussed in this thread expand around center approach is a powerful technique that can solve a variety of problems related to pali
In this thread we will see how a single dynamic programming (DP) approach can be adapted to solve multiple seemingly different problems. By understand
