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Day 9: Iteration vs. Recursion: Analyzing Performance (Factorial)
Recursion vs. Iteration Recursion is often cleaner to write and easier to read especially for trees, but it comes at a cost: space complexity. - Iteration uses...
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Mutable vs Immutable Objects in Python (Explained Simply)
Introduction This post explains a core Python concept that often causes confusion, especially when working with data structures, recursion, and backtracking. I...
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🌠Beginner-Friendly Guide 'Smallest Subtree with all the Deepest Nodes' – LeetCode 865 (C++, Python, JavaScript)
!Cover image for 🌠Beginner-Friendly Guide 'Smallest Subtree with all the Deepest Nodes' – LeetCode 865 C++, Python, JavaScripthttps://media2.dev.to/dynamic/ima...
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Iterando lo recursivo
Conversión de HTML reducido a Markdown con un árbol sintáctico En uno de mis proyectos laterales o “mascota” escribí un pequeño parser para un HTML reducido, p...
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Clone Graph: Coding Problem Solution Explained
Clone Graph The “Clone Graph” problem asks you to create a deep copy of a connected graph. Each node in the graph contains a value and a list of its neighbors....
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Master Recursion and DP: A Visual Guide
Recursion is a stack; DP is a table. Stop guessing and use AI visuals to build rock‑solid mental models for the hardest algorithm topics. Recursion and Dynamic...
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HTDP Study Blog
This blog is a comprehensive study guide distilled from many past exams 2019–2024 and lecture rules in HTDP / Racket. It focuses on evaluation, function design,...
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Building the Foundation: A Comprehensive Guide to Recursion (The Function That Calls Itself)
markdown !Recursion illustrationhttps://media2.dev.to/dynamic/image/width=800,height=,fit=scale-down,gravity=auto,format=auto/https%3A%2F%2Fdev-to-uploads.s3.am...
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Permutations & Next Permutation
Introduction Permutations are a fundamental concept in problem solving and data structures PS/DSA. They appear in recursion, backtracking, combinatorics, graph...
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Coding Challenge Practice - Question 81
Task Implement a function that replaces undefined values with null throughout a given input, handling primitives, arrays, and objects recursively. Approach 1....
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Leetcode 39 Combination Sum
Problem Statement Given an array of distinct integers candidates and a target integer target, return all unique combinations of candidates where the chosen num...
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Day 66: Python Invert Binary Tree, Recursive Mirror Swap for Perfect Tree Symmetry (LeetCode #226 Style)
Welcome to Day 66 of the 80DaysOfChallenges journey! This intermediate challenge focuses on inverting a binary tree by recursively swapping left and right child...