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Today, we're solving the GeeksforGeeks (GFG) Problem of the Day, "Decode the String". This problem requires us to decode a string with a specific format, such as 3[a2[b]], which expands to abbabbabb.

In this video, I'll walk you through my C++ solution using a stack data structure. We'll use two stacks: one to store the repeat counts (numStack) and another to store the previous strings (strStack). This approach elegantly handles the nested nature of the problem.

Key concepts covered:

Stack Data Structure: Learn why stacks are the perfect tool for this problem.

String Parsing: See how to iterate through the string and identify digits, letters, and brackets.

Handling Nesting: Understand how pushing and popping from the stacks helps manage nested encoded parts.

This is an excellent problem for anyone preparing for technical interviews or wanting to improve their data structures and algorithms skills.

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