Leetcode 39 | Combination Sum | Recursion Solution

Leetcode 39 | Combination Sum | Recursion Solution

In this video, we’ll explore Leetcode Problem 39 - Combination Sum. This classic backtracking problem is essential for mastering recursion and understanding how to build combinations that meet a target sum. We’ll break down the problem statement, walk through the algorithm step-by-step, and code the solution with clear explanations.

🔍 What you’ll learn:

Understanding the Combination Sum problem
Backtracking approach and recursive logic
Optimization tips for coding interviews
Dry run with an example input

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💬 Drop any questions in the comments — I reply to all!

[sikhoaursmjho]

Make sure you have watched previous Recursion videos from this playlist. You will understand it better then.

[PriyaKumari-smft]

it has helped me a lot to understand what is happening under the hood, thank you!!