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Neamatullah Ekhteyari: A Passionate Educator and Expert Software Engineer, Unlock your full potential with Neamatullah Ekhteyari, a highly accomplished online instructor, software engineer, and pe*******on tester. With a deep-rooted passion for teaching and extensive expertise in the world of technology, Neamatullah is committed to empowering learners to thrive in the digital landscape. Armed with a solid foundation in software engineering, Neamatullah possesses a wealth of knowledge in building robust and cutting-edge applications. His mastery in diverse programming languages, such as Python, Java, and php, combined with his emphasis on best practices, enables students to develop scalable and efficient software solutions. As a skilled pe*******on tester, Neamatullah helps organizations fortify their cybersecurity defenses. His ability to identify vulnerabilities, perform risk assessments, and implement effective safeguards makes him an invaluable asset in today's ever-evolving threat landscape. With a dynamic teaching style that fosters engagement, Neamatullah ensures learners easily grasp complex concepts. His practical approach, reinforced by real-world examples and hands-on projects, equips students with the skills they need to excel in their careers. Join Neamatullah Ekhteyari's courses on Udemy today and embark on an enlightening learning journey. Whether you're a beginner looking to kickstart your programming journey or an experienced professional seeking to enhance your cybersecurity acumen, Neamatullah's courses provide the perfect learning experience backed by a track record of student success. Unlock your potential and take a leap towards professional excellence with Neamatullah Ekhteyari. Enroll in his courses now and embark on a transformative educational adventure! ? Remember, the sky's the limit when you learn and grow with Neamatullah Ekhteyari!

02/10/2026

🐍 Build an Age Calculator Using Python! 🎂💻

Want to calculate your exact age using Python? 🚀 In this simple and beginner-friendly project, you'll learn how to create an Age Calculator that calculates a person's age based on their date of birth.

🔥 What you'll learn:

- 📅 Working with Python's "datetime" module
- 🧮 Calculating age using dates
- 💻 Building a simple Python project
- 🚀 Improving your Python programming skills

💡 Practice Python by building real-world projects!

👍 Like, 💬 comment, and 🔔 follow for more Python programming tutorials.

02/10/2026

Python can generate random number!

01/10/2026

Validate Email Addresses Using Python!

28/09/2026

🔄 Reverse a Linked List — One of the Most Important Linked List Problems!

Ever wondered how to reverse a linked list without creating a completely new list? 🤔

The key is to change the direction of each node’s pointer.

🧠 The Core Idea

We use three pointers:

"prev" → previous node
"current" → current node
"next" → next node

At every step:

next = current.next
current.next = prev
prev = current
current = next

Example:

Before:
1 → 2 → 3 → 4 → NULL

After:
4 → 3 → 2 → 1 → NULL

⏱️ Time Complexity: O(n)
💾 Space Complexity: O(1)

This is a classic problem for understanding pointers, linked lists, and in-place algorithms — and it's also a common technical interview question.

💡 Programming Tip:
Don't just memorize the code. Understand how "prev", "current", and "next" move through the list.

26/09/2026

🔍 Selection Sort Explained Simply!

How does Selection Sort organize an unsorted list?

The idea is simple:
1️⃣ Find the smallest element
2️⃣ Move it to the beginning
3️⃣ Repeat for the remaining elements
4️⃣ Continue until the array is sorted ✅

📌 Time Complexity: O(n²)
📌 Space Complexity: O(1)
📌 Type: In-place comparison sorting algorithm

Selection Sort is one of the best algorithms for learning the fundamentals of sorting, loops, comparisons, and algorithmic thinking.

💻 Follow for more Python & Computer Science content.

21/09/2026

How Many Times Do These 4 Rublk's Cube Moves Ropeat? %
Description
What happens when you repeatedly parform:
RURU
on a solved Rubik's Cube?
X Start with a solved cube ○ Repeat the four moves Count the repetitions Stop when the cube returns to solved
The video also shows how Python-style programming logic can automate the process
Can you guess the number before watching? 93
# Puzzle

20/09/2026
20/09/2026

🌳 How does insertion work in a Binary Search Tree?

Start at the root:
➡️ Smaller value → go LEFT
➡️ Larger value → go RIGHT
➡️ Empty position → INSERT!

Simple rule, powerful data structure. 🚀

Would you be able to predict where the next number will go? 👀

Follow AI Programming Zone for more programming & DSA content.

20/09/2026

Remove Duplicates from a Sorted Array
Can you remove duplicates using Two Pointers?
Example:
11, 1,2,2, 3, 4,4]
11,2,3,4]
Dne pointer tracks the position for unique values while the other scans through the array. A great example of the Two Pointers technique in DSA.
Save this for your next coding review!
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