James Peralta

00:00:00 Intro and Day 9 Problem Overview 00:00:38 Movie Theater Tile Grid & Largest Rectangle Task 00:04:44 Explaining Possible Rectangle Approach 00:12:51 Solving Part 1: Brute Force Rectangle Calculation 00:13:01 Part 2 Twist: Red and Green Tile Loop Constraints 00:24:49 Strategies for Filling and Marking Grid 00:35:18 Grid Compression, Flood Fill, and Performance Discussion 01:22:42 Final Thoughts, Ray Casting, and Stream Wrap-up #AdventOfCode #GridAlgorithms #CompetitiveProgramming

00:00:00 Intro and Problem Overview 00:03:43 Understanding the Playground Graph and Circuits 00:07:52 Minimum Spanning Tree and Union-Find Concepts 00:13:38 Parsing Input and Building the Distance Heap 00:18:20 Connecting Junction Boxes and Circuit Grouping 00:28:12 Implementing DFS for Circuit Size Calculation 00:36:04 Part Two: Union-Find for Full Circuit Connection 01:03:15 Debugging, Reflection, and Outro #AdventOfCode #Algorithms #UnionFind

00:00:00 Part 1 00:17:47 Part 2 Code: https://github.com/JamesPeralta/advent-of-code-2025 #AdventOfCode #PythonCoding #ProblemSolving

00:00:00 Part 1 00:12:29 Part 2 00:30:48 Key takeaways Code: https://github.com/JamesPeralta/advent-of-code-2025 #AdventOfCode #PythonCoding #ProblemSolving

00:00:00 Part 1 00:11:53 Part 2 00:24:11 Key takeaways Code: https://github.com/JamesPeralta/advent-of-code-2025 #AdventOfCode #PythonCoding #ProblemSolving