Find All Possible Recipes from Given Supplies | Brute Force | Optimal | Leetcode 2115

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codestorywithMIK

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Published on March 21, 2025 7:26:27 AM ● Video Link: https://www.youtube.com/watch?v=4Tixc5mU-Pk

Game:

Brute Force (2003)

Duration: 0:00

7,733 views

424

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Hi Everyone, this is the 70th video of our Playlist "Graphs : Popular Interview Problems".
Now we will be solving simple problem for practicing - Find All Possible Recipes from Given Supplies | Brute Force | Optimal | Leetcode 2115 | codestorywithMIK

We will focus on why this is a Graph based problem and why Topological Sort is the ideal approach for this problem.


Problem Name : Find All Possible Recipes from Given Supplies | Brute Force | Optimal | Leetcode 2115 | codestorywithMIK
Company Tags : will update later
My solutions on Github(C++ & JAVA) - https://github.com/MAZHARMIK/Interview_DS_Algo/blob/master/Graph/Topological Sorting/Find All Possible Recipes from Given Supplies.cpp
Leetcode Link : https://leetcode.com/problems/find-all-possible-recipes-from-given-supplies


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Video Summary :
Approach 1 (Brute Force):
Iterates over the recipes multiple times, checking if all ingredients are available in the supply set. If a recipe can be made, it is added to the supply and result list. Repeats until no more recipes can be formed.

Approach 2 (Topological Sorting):
Uses a graph-based approach where ingredients act as dependencies. Builds an adjacency list and calculates in-degrees for recipes. Processes recipes in a queue if their dependencies are met, ensuring an efficient ordering.


✨ Timelines✨
00:00 - Introduction
0:20 - Motivation
0:36 - Problem Explanation
3:27 - Brute Force
16:00 - Coding Brute Force
20:18 - Why is it a Graph Based Problem ?
23:28 - Topological Sorting
32:49 - Coding Optimal Approach

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