LeetCode Problem 287: Duplicate Number Solution

Python Clarity Series – Episode 14 Topic: try-except vs if Checking 📌 When should we use try-except? Students often write: if x != 0: print(10/x) But real-world coding prefers: try: print(10/x) except ZeroDivisionError: print("Cannot divide by zero") 👉 if prevents 👉 try-except handles unexpected errors 💡 Developer Mindset: Don’t just prevent errors. Be prepared to handle them. This is how production-level code is written. #PythonClarity #ExceptionHandling #DeveloperSkills

Day - 30 /100 Arrays vs. Linked Lists: The eternal struggle. Most of us learn these in week one of CS50, but in a world of high-level languages and optimized "Dynamic Arrays" (like Python lists or JavaScript arrays), does the distinction still matter as much as it used to? The image below breaks down the fundamental differences, but I want to hear from the experts: In modern development, when was the last time you manually implemented a Linked List to solve a performance bottleneck? #SoftwareDevelopment #Programming #ComputerScience #TechTalk

Explicit is Better Than Implicit Ever struggled to understand what a piece of code is doing? Simple and obvious code lets us reason about what’s happening and the potential "blast radius". Originally, "Explicit is better than implicit" appeared in PEP 20, The Zen of Python (go ahead and read it now). This advice is invaluable and worth repeating. Too often, we're tempted to delegate control or logic to external systems or take shortcuts out of laziness. Database procedures or magically updating 'last_modified' fields are examples of such magic. The same applies to using static singletons instead of proper dependency injection. As programmers, it's our responsibility to stay in control. However, being pragmatic is valuable. Knowing when to trade control for convenience is crucial. #SoftwareEngineering #SoftwareArchitecture #Coding #Programming

Many beginners confuse these two. ✔ List [ ] Mutable Can add, remove, modify items ✔ Tuple ( ) Immutable Faster and safer for fixed data Choosing the correct structure makes your code cleaner and more efficient. What do you use more in Python — List or Tuple? #PythonDeveloper #CodingTips #BackendDevelopment #FastAPI #Programming

Python | Arrays | Sum of Array Elements 🧠 Problem: Given an array, find the sum of all elements. 💻 Approach: Iterate through the array and keep adding each element to a running sum. ⏱ Time Complexity: O(n) 📦 Space Complexity: O(1) 📂 Explore more: #PythonProblems #Arrays #CodingPractice #DSA #Programming 📌 Follow QSolutions for daily coding practice 🚀

💻 Coding slow? Let's fix that! Swipe through for 4 tips that'll transform the way you write code! → Every great developer has one thing in common — they don't just code hard, they code smart. 🧠 Start applying these today and watch the magic happen! ⚡ #coding #python #n8n

The loop never stopped. They forgot one line: count += 1. A while loop runs as long as the condition is True. If you never change the variable in the condition, it stays True forever. One line inside the loop fixes it. I wrote a short beginner's guide that covers: ✅ Why loops? Repeat code instead of copy-paste ✅ while syntax and flow (condition → block → repeat) ✅ Pattern 1: Repeat N times with a counter (e.g. print Hello 10 times) ✅ Pattern 2: Repeat until condition is false (e.g. digits of a number in reverse) ✅ Why you must update the variable — avoid infinite loops ✅ Summary of both patterns + key takeaways ~4 min read. Straight to the point. https://lnkd.in/g2QAD7wD #Python #Programming #Coding #Beginners #LearnToCode #WhileLoop #Loops #Tech #SoftwareDevelopment #CodingTips

One typo breaks your condition: if a = 0 instead of if a == 0. 🔀 = assigns. == compares. Mix them up and you get a syntax error — or worse, a bug that’s hard to spot. I wrote a short beginner’s guide that covers: ✅ Linear flow vs conditional flow (when different code runs) ✅ What a condition is (True or False) and how to build one ✅ Comparison operators: <, <=, >, >=, ==, != ✅ if and else: syntax, colon, indentation (4 spaces) ✅ Full program: positive or negative number ✅ Multiple statements in each block ✅ Practice problems + the == vs = fix ~5 min read. Straight to the point. https://lnkd.in/g-vTYtye #Python #Programming #Coding #Beginners #LearnToCode #ConditionalStatements #IfElse #ControlFlow #Tech #SoftwareDevelopment #CodingTips

A common misconception: “Async makes Python faster.” Not exactly. Async shines when: You have I/O-bound tasks APIs call other APIs Services wait on DB or network If it’s CPU-bound, async won’t save you. Understanding the difference between: CPU-bound vs I/O-bound … is what separates clean architecture from chaos. #Python #AsyncIO #Backend #SystemDesign #Programming

#day50 problem-solving Journey LeetCode ✅ 🚀 LeetCode Practice – Difference Between Element Sum and Digit Sum Today I solved the Difference Between Element Sum and Digit Sum of an Array problem using Python. #2535 🔹 Problem Idea: Given an array of integers, we calculate: Element Sum: Sum of all numbers in the array Digit Sum: Sum of all digits of those numbers The task is to return the difference between the element sum and the digit sum. 💡 My Approach: Traverse the array and compute the element sum. Convert each number to a string to iterate through its digits. Add each digit to the digit sum. Return the difference between the two sums. 📊 Key Takeaways: ✔️ Reinforced understanding of loops and digit extraction. ✔️ Practiced breaking down numbers into individual digits. ✔️ A simple but effective exercise in problem-solving and array traversal. 👉 Consistent problem-solving helps strengthen logical thinking and coding efficiency. Looking forward to solving more challenges! 💻✨ #Python #LeetCode #CodingPractice #ProblemSolving #Programming #DataStructures 10000 Coders