Python Logic Building for Beginners | No max(), len(), or set() | Must-Know for Interviews
🎬 Welcome back, future Python masters!
This is Part 2 of our Python Problem Solving Series — where we solve real coding questions that freshers and beginners often face in interviews.
And guess what? Just like Part 1 — ❌ No built-in shortcuts. ❌ No use of len(), sum(), set(), or reversed().
✅ We manually build each solution and explain the logic step-by-step — like your favorite YouTuber does during a coding livestream! 🙌
We’ll go through very popular beginner problems such as:
Fibonacci series without recursion
Factorial of a number using loops
Finding sum of digits
Counting list elements manually
Removing duplicates from a list (without using set())
This is perfect for students, freshers, self-taught coders, or anyone preparing for Python coding interviews.
💡 It’s not just coding, it’s logic building explained in English like a friendly classroom session.
⏱️ Timestamps (Clickable Chapters for Easy Navigation)
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0:00 - 👋 Intro: What’s Inside Part 2 of This Python Series
1:12 - ✅ Fibonacci Series Without Recursion (Logic + Loop)
4:58 - ✅ Factorial of a Number Using For Loop
7:39 - ✅ Sum of Digits of a Number Without Built-in Functions
10:43 - ✅ Count Elements in a List Without Using len()
13:30 - ✅ Remove Duplicates From List (No set() Used)
17:20 - 🧠 Bonus Tip: Practice these with different inputs
18:00 - 🎯 Outro: Do You Want Part 3? Comment Below!
🏷️ Hashtags to Boost Reach
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📈 Power Keywords for Better Search Visibility (Add in tags or description)
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🙋 Community Call-to-Action (For Comments & Engagement)
🗣️ Drop a “YES! I want Part 3” in the comments if you want me to cover these in the next video:
Reverse a number
Find second largest number in list
Sort a list without sort()
Count digits in a number without len()
Find common elements between two lists (without set())
Welcome back to the Part 2 of our Python Coding Interview Series! 👨💻
This video continues our mission: solve coding questions with no shortcuts and no inbuilt functions — just pure logic, explained step-by-step in easy English (Tamil-style clarity).
✅ Whether you’re a Python beginner, fresher, or preparing for coding interviews, these 6 new questions will boost your confidence and sharpen your logical thinking.
🔍 Topics Covered in Part 2:
🧮 Fibonacci Series – Print First N Terms (No recursion)
❗ Factorial of a Number (Using Loop Only)
🔢 Sum of Digits (Without sum() function)
📏 Count Elements in a List (Without len())
🚫 Remove Duplicates from a List (Without set())
➗ Check if a Number is Even or Odd
🎓 What makes this tutorial different?
✅ No inbuilt methods like len(), set(), sum(), max()
✅ Logic is built from scratch
✅ Step-by-step classroom style explanation
✅ Tamil + English friendly language
✅ Beginner to Intermediate-level transition guide
📘 If you missed Part 1, watch it here: [Add link to Part 1]
🎯 Subscribe and Comment “YES! I want Part 3” if you’re ready for more logic-based practice questions:
Armstrong Number
Reverse an Integer
Count Alphabets, Digits, Spaces in a String