Decode Strings Using Python | Leetcode 394 Solution
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
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📌 Channel: GEEKYCODES
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