Add Digits | Leetcode 258 | Brute Force, Recursion, Math | Python Telugu | srkcodes
4Welcome to srkcodes, your go-to channel for Telugu coding tutorials, Leetcode solutions, and DSA preparation! Today, we solve Leetcode Question #258: Add Digits, a commonly asked problem in coding interviews that strengthens your recursion and math skills.
🔍 What You’ll Learn:
1️ ⃣ Brute Force Approach: Iteratively sum digits until a single digit remains.
2️ ⃣ Recursion Approach: Solve the problem efficiently using recursive calls.
3️ ⃣ Mathematical Approach (Digital Root): Learn the fastest method to solve it in O(1) time.
This video simplifies Python programming for interviews by covering multiple approaches, from basic to advanced. Whether you're a beginner or an experienced coder, this problem helps boost your problem-solving skills.
👨 💻 Why Watch This Video?
✅ Master recursion and improve your DSA interview prep.
✅ Understand the mathematical trick behind Add Digits (Digital Root formula).
✅ Optimize your code with different approaches and their time complexity.
💡 Key Takeaways:
Learn Python recursion with a real-world problem.
Understand time complexity differences between brute force, recursion, and math approaches.
Discover a constant-time (O(1)) solution using modulus operation.
💬 Extra Challenge for You: Can you solve Add Digits without using loops or recursion? Drop your solution in the comments!
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🔗 External Study Resources for Deep Dive:
📝 Problem discussed in the vidhttps://leetcode.com/problems/add-digits/d-dig...
📚 Topic's ⬇ ️
Rehttps://www.geeksforgeeks.org/recursion-in-python/recursi...
💡 LeetCode prhttps://leetcode.com/problem-list/recursion/-list/rec...