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Remove K Digits | Intuition | Dry Run | Leetcode 402 | codestorywithMIK

iPad PDF Notes - https://github.com/MAZHARMIK/Intervie... Whatsapp Community Link : https://www.whatsapp.com/channel/0029... This is the 16th Video of our Playlist "Stack: Popular Interview Problems". In this video we will try to solve a very famous monotonic based problem : Remove K Digits | Intuition | Dry Run | Leetcode 402 | codestorywithMIK I will explain the intuition so easily that you will never forget and start seeing this as cakewalk EASYYY. We will do live coding after explanation and see if we are able to pass all the test cases. Also, please note that my Github solution link below contains both C++ as well as JAVA code. Problem Name : Remove K Digits | Intuition | Dry Run | Leetcode 402 | codestorywithMIK Company Tags : Meta, Google, Snapchat, Microsoft My solutions on Github(C++ & JAVA) : https://github.com/MAZHARMIK/Intervie... Leetcode Link : https://leetcode.com/problems/remove-... My DP Concepts Playlist :    • Roadmap for DP | How to Start DP ? | ...   My Graph Concepts Playlist :    • Graph Concepts & Qns - 1 : Graph will...   My Recursion Concepts Playlist :    • Introduction | Recursion Concepts And...   My GitHub Repo for interview preparation : https://github.com/MAZHARMIK/Intervie... Instagram :   / codestorywithmik   Facebook :   / 100090524295846   Twitter :   / cswithmik   Subscribe to my channel :    / @codestorywithmik   Summary : The provided solution implements an algorithm to remove `k` digits from a given string `num` in order to form the smallest possible number. The approach utilizes a stack-like structure implemented using a string. It's basically monotonic stack/string/dequeue 1. Iterate through each digit of the input number. 2. While the current digit is less than the digit at the top of the stack (if it exists) and `k` is greater than 0, pop elements from the stack and decrement `k`. 3. Append the current digit to the stack if the stack is empty or if the current digit is non-zero. 4. After processing all digits, if `k` is still greater than 0, pop elements from the stack until `k` becomes 0. 5. If the resulting stack is empty, return "0"; otherwise, convert the stack to a string and return the result. This approach efficiently handles the removal of digits while ensuring that the resultant number is the smallest possible. ╔═╦╗╔╦╗╔═╦═╦╦╦╦╗╔═╗ ║╚╣║║║╚╣╚╣╔╣╔╣║╚╣═╣ ╠╗║╚╝║║╠╗║╚╣║║║║║═╣ ╚═╩══╩═╩═╩═╩╝╚╩═╩═╝ ✨ Timelines✨ 00:00 - Introduction 02:55 - How to think about it / Observation 08:17 - Why Greedy Fails 10:20 - Intuition/Applying Observation 16:26 - One more Dry Run 19:14 - Why people call it Monotonic Stack 24:10 - Corner Case 25:23 - Time Complexity 27:30 - Coding it up #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 #newyear2024