Freedom Trail | Using Shortest Path in Graph | Modified Dijkstra | Leetcode 514 | codestorywithMIK скачать в хорошем качестве

Freedom Trail | Using Shortest Path in Graph | Modified Dijkstra | Leetcode 514 | codestorywithMIK

Whatsapp Community Link : https://www.whatsapp.com/channel/0029... This is the 49th Video of our Playlist "Graphs : Popular Interview Problems" by codestorywithMIK In this video we will try to solve a very good DP problem based on Strings : Freedom Trail | Using Shortest Path in Graph | Dry Run | Leetcode 514 | 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 : Freedom Trail | Using Shortest Path in Graph | Dry Run | Leetcode 514 | codestorywithMIK Company Tags : Google My solutions on Github(C++ & JAVA) : https://github.com/MAZHARMIK/Intervie... Leetcode Link : https://leetcode.com/problems/freedom... My DP Concepts Playlist :    • Roadmap for DP | How to Start DP ? | Topic...   My Graph Concepts Playlist :    • Graph Concepts & Qns - 1 : Graph will no m...   My Recursion Concepts Playlist :    • Introduction | Recursion Concepts And Ques...   My GitHub Repo for interview preparation : https://github.com/MAZHARMIK/Intervie... Instagram :   / codestorywithmik   Facebook :   / 100090524295846   Twitter :   / cswithmik   Subscribe to my channel :    / @codestorywithmik   Approach Summary : The provided solution aims to find the minimum number of steps required to spell out a given keyword by rotating a dial ring. Here's a summary of the approach: 1. **Count Steps Function**: This function calculates the minimum steps needed to move from one index on the ring to another. It considers both direct distance and wrap-around distance to reach the target index. 2. **Find Rotate Steps Function**: First, it constructs an adjacency list (`adj`) where each character of the ring is mapped to its indices in the ring. It initializes a priority queue (`pq`) to explore possible paths. Each element in the priority queue represents the current total steps, ring index, and key index. It initializes a set (`visited`) to keep track of visited states. The function iterates through the priority queue until it's empty or until the keyword is spelled out completely. At each iteration, it pops the element with the minimum total steps from the priority queue. It checks if the current state has been visited before. If so, it skips the current iteration. Otherwise, it marks the current state as visited and explores all possible next indices for the current character in the keyword. For each next index, it calculates the total steps required to move to that index and pushes it into the priority queue. Once the keyword is spelled out completely, the function returns the total steps plus the length of the keyword. 3. **Analysis**: This approach utilizes Dijkstra's algorithm with a priority queue to efficiently explore all possible paths. By maintaining a set of visited states, it avoids revisiting the same state, ensuring correctness and efficiency in finding the minimum number of steps required to spell out the keyword. ╔═╦╗╔╦╗╔═╦═╦╦╦╦╗╔═╗ ║╚╣║║║╚╣╚╣╔╣╔╣║╚╣═╣ ╠╗║╚╝║║╠╗║╚╣║║║║║═╣ ╚═╩══╩═╩═╩═╩╝╚╩═╩═╝ ✨ Timelines✨ 00:00 - Introduction #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