41. Valid Sudoku || Matrix || HashSet || Top 150+ DSA Leetcode Coding JAVA

Determine if a 9 x 9 Sudoku board is valid. Only the filled cells need to be validated according to the following rules: Each row must contain the digits 1-9 without repetition. Each column must contain the digits 1-9 without repetition. Each of the nine 3 x 3 sub-boxes of the grid must contain the digits 1-9 without repetition. Approach: Brute Force, isUnique method (Better) & HashSet We have started the most important part to crack Top Product Based Company i.e. Top DSA Coding Questions. We will cover all questions and patterns in Details. All topics are covered, check the List mentioned below. What you'll learn - Learn, implement, and use different Data Structures - Logic Building - Problem Solving - All DSA Concepts Checkout the Leetcode link in below list, and try to solve. Top 150 DSA Coding Questions List with Leetcode Links: https://drive.google.com/file/d/1Nfq97UIGoXEiyuEUpYLzjARN_quVoxpQ/view?usp=sharing Connect with us on Instagram : https://www.instagram.com/itsruntym/ Join our Telegram Community: Telegram channel: https://t.me/itsruntym TimeStamp: 0:00 - Intro 02:14 - Brute Force Sol 20:22 - isUnique Method (Better) 32:19 - HashSet #coding #software #softwaredeveloper #job #faang #google #amazon #development #developer #career #itjob #programming #leetcode #codingquestions #googleinterview #microsoftinterview #softwareengineer #amazonjobs #softwaredevelopment #problemsolving #leetcodequestion #interview #array #codingchallenge #startcoding #java #javaquestions #basiccoding #beginners #dsa #datastructures #algorithms #timecomplexity #dsawithjava #itsruntym #timecomplexity #spacecomplexity #array #leetcode #faang #problemsolving #logicbuilding #array #dsacoding #matrix #sudoku #runtym #itsruntime