Articles by Tag #backtracking
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Backtracking Strings: Draw the Tree, Fix the Bugs
Backtracking on strings feels like magic until you visualize the call tree. Here's how to draw it and spot branching errors.
Backtracking Permutations: Can You Trace the Recursion Stack?
If you can't see how the stack grows and unwinds, duplicates creep in and base cases fire wrong. Here's how to visualize it.
Versioning! and Versioning?
Look, versioning isn't just some administrative checkbox. It's actually how you keep your sanity when...
Make Backtracking 10x Faster: The Art of 'Aggressive Pruning'
Brute force won't pass the time limit. Learn how to sort, prune, and break early to turn a TLE backtracking solution into an Accepted one.
Practical backtracking
For the longest time, I despised backtracking problems. They always felt too abstract — filled with...
N-Queens Problem
The N-Queens problem is a classic combinatorial problem in which you must place N queens on an N ×...
Weekly Coding Challenge #2: Generating Parentheses with Backtracking and Recursion
I’m continuing the weekly challenge series, and this time we’re tackling a foundational favorite:...
Weekly Coding Challenge #1: Solving Subsets II with Backtracking
I've decided to do a new blog series where I’ll be sharing coding challenges I’ve solved each week....