Find Unique Binary String | Multiple Approaches | Intuition | Leetcode 1980 | codestorywithMIK

Whatsapp Community Link : https://www.whatsapp.com/channel/0029Va6kVSjICVfiVdsHgi1A Hi Everyone, this is the 27th video of our Playlist "Strings : Popular Interview Problems". Now we will be solving a good String problem - Find Unique Binary String | Multiple Approaches | Intuition | Leetcode 1980 | codestorywithMIK Problem Name : Find Unique Binary String | Multiple Approaches | Intuition | Leetcode 1980 | codestorywithMIK Company Tags : Amazon, Meta, Google My solutions on Github(C++ & JAVA) - https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/strings/Find%20Unique%20Binary%20String.cpp Leetcode Link : https://leetcode.com/problems/find-unique-binary-string/ My DP Concepts Playlist : https://youtu.be/7eLMOE1jnls My Graph Concepts Playlist : https://youtu.be/5JGiZnr6B5w My Segment Tree Concepts Playlist : https://www.youtube.com/watch?v=k99r1A7krcY&list=PLpIkg8OmuX-K1qUIQToCllUO0UIKXt8dB My Recursion Concepts Playlist : https://www.youtube.com/watch?v=pfb1Zduesi8&list=PLpIkg8OmuX-IBcXsfITH5ql0Lqci1MYPM Trie Playlist - https://www.youtube.com/watch?v=DMP2bqW6URA&list=PLpIkg8OmuX-I99uuP2BZOz4mI_lms4gVG Difference Array Technique: Concepts & Qns : https://www.youtube.com/watch?v=ZHNVmtm08WY&list=PLpIkg8OmuX-Kqkb8DqDe_4-Tiav6ilS_L My GitHub Repo for interview preparation : https://github.com/MAZHARMIK/Interview_DS_Algo Instagram : https://www.instagram.com/codestorywithmik/ Facebook : https://www.facebook.com/people/codestorywithmik/100090524295846/ Twitter : https://twitter.com/CSwithMIK Subscribe to my channel : https://www.youtube.com/@codestorywithMIK ╔═╦╗╔╦╗╔═╦═╦╦╦╦╗╔═╗ ║╚╣║║║╚╣╚╣╔╣╔╣║╚╣═╣ ╠╗║╚╝║║╠╗║╚╣║║║║║═╣ ╚═╩══╩═╩═╩═╩╝╚╩═╩═╝ Video Summary : Approach 1 (Using simple conversion): The idea is to convert each binary string into an integer and store it in a set. Then, we iterate from 0 to a large number (65536 in this case) to find the smallest missing integer that isn’t in the set. Finally, we convert this integer back to a binary string and return the required substring. Approach 2 (Optimized search range): This approach refines the first one by recognizing that we only need to search from 0 to n (where n is the number of binary strings in nums) rather than an arbitrarily large number. This reduces unnecessary iterations while maintaining correctness. Approach 3 (Diagonal flipping - Cantor’s Argument): Instead of converting and checking numbers, this approach constructs a unique binary string directly by ensuring it differs from each given string at the corresponding index (diagonal elements). If a character at nums[i][i] is '0', we set it to '1' and vice versa. This guarantees a unique binary string efficiently in O(n) time. ✨ Timelines✨ 00:00 - Introduction 00:21 - Problem Explanation 02:25 - Approach-1 12:29 - Approach-2 14:04 - Approach-3 21:18 - Coding it up #MIK #mik #Mik #coding #helpajobseeker #easyrecipes #leetcode #leetcodequestionandanswers #leetcodesolution #leetcodedailychallenge #leetcodequestions #leetcodechallenge #hindi #india #coding #helpajobseeker #easyrecipes #leetcode #leetcodequestionandanswers #leetcodesolution #leetcodedailychallenge #leetcodequestions #leetcodechallenge #hindi #india #hindiexplanation #hindiexplained #easyexplaination #interview#interviewtips #interviewpreparation #interview_ds_algo #hinglish #github #design #data #google #video #instagram #facebook #leetcode #computerscience #leetcodesolutions #leetcodequestionandanswers #code #learning #dsalgo #dsa #coding #programming #100daysofcode #developers #techjobs #datastructures #algorithms #webdevelopment #softwareengineering #computerscience #pythoncoding #codinglife #coderlife #javascript #datascience #leetcode #leetcodesolutions #leetcodedailychallenge #codinginterview #interviewprep #technicalinterview #interviewtips #interviewquestions #codingchallenges #interviewready #dsa #hindi #india #hindicoding #hindiprogramming #hindiexplanation #hindidevelopers #hinditech #hindilearning #helpajobseeker #jobseekers #jobsearchtips #careergoals #careerdevelopment #jobhunt #jobinterview #github #designthinking #learningtogether #growthmindset #digitalcontent #techcontent #socialmediagrowth #contentcreation #instagramreels #videomarketing #codestorywithmik #codestorywithmick #codestorywithmikc #codestorywitmik #codestorywthmik #codstorywithmik #codestorywihmik #codestorywithmiik #codeistorywithmik #codestorywithmk #codestorywitmick #codestorymik #codestorwithmik