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🚀 In this video, we solve a popular Python coding interview question:
👉 How to find the first non-repeating character in a string?

This is a common challenge asked in DevOps, AWS, and Cloud engineer interviews, designed to test your problem-solving and scripting skills.

We’ll cover:
✅ Problem explanation with examples ("swiss", "aabbc")
✅ Step-by-step solution using a Python dictionary
✅ Cleaner approach with collections.Counter
✅ Pythonic one-liner solution
✅ Common mistakes and how to fix them
✅ Relevance for AWS & DevOps jobs (e.g., log parsing, automation, pipeline scripting)

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