Decode Strings Using Python | Leetcode 394 Solution

Published: 22 June 2025
on channel: Geeky Codes
72
1

In this Python tutorial, we break down the popular Leetcode problem "Decode String" (Problem #394) in a step-by-step, beginner-friendly way. You'll learn how to decode strings with nested patterns like "3[a2[c]]" using a stack-based approach!

🚀 What You'll Learn:

How to handle nested brackets using stacks 🧠

Python implementation and dry-run explanation 🐍

Real-world examples and clear visualizations

Tips to ace similar string parsing interview questions!

👨‍💻 Problem Statement:
Given an encoded string like "3[a2[c]]", return its decoded form (e.g., "accaccacc"). Understand how to decode it using efficient logic.

🧪 Example Inputs:

"3[a]2[bc]" ➡️ "aaabcbc"

"3[a2[c]]" ➡️ "accaccacc"

"2[abc]3[cd]ef" ➡️ "abcabccdcdcdef"

📚 Leetcode Difficulty: Medium
💼 Asked In: Google, Amazon, Meta, Microsoft, Adobe

📺 Don’t forget to LIKE, SUBSCRIBE, and turn on NOTIFICATIONS 🔔
📌 Channel: GEEKYCODES

#Python #Leetcode #DecodeString #CodingInterview #DSA #Stack #GeekyCodes #PythonTutorial #Leetcode394 #Programming #TechJobs #AmazonInterview #GoogleCodingRound


On this page of the site you can watch the video online Decode Strings Using Python | Leetcode 394 Solution with a duration of hours minute second in good quality, which was uploaded by the user Geeky Codes 22 June 2025, share the link with friends and acquaintances, this video has already been watched 72 times on youtube and it was liked by 1 viewers. Enjoy your viewing!