Day 68 of 365-Day Coding Sprint: Finding Missing Number

WORD OF THE DAY : STACK OVERFLOW What it means: A Q&A platform where developers ask and answer programming questions. Also refers to when a program runs out of memory in the call stack. Example: "I was stuck on a bug for hours until I found the solution on Stack Overflow." #Programming #Coding #StackOverflow #DevTips #LearnToCode #devwordoftheday

Topic :-How to look at code? It came to my thought that manier times I have been told that all programming language has same logic but syntax is different so how should we look at code or understand it by algorithmic point of view or what. for eg what should we analyse ? the input ,output and problem it solve in a code. #fullstack #MERN #Software #Code #programming

Clean code starts with mastering the basics. In this small C++ example, I implemented two simple but important functions: • SumArray to calculate the total sum of array elements • ArrayAverage to compute the average using the sum function and proper type casting A good reminder that strong software engineering is built on clear logic, reusable functions, and well-documented code. GitHub: https://lnkd.in/dBFE-5U8 #cpp #programming #algorithms #softwareengineering #coding

Bit Manipulation Playlist by Vikas Soni (Candidate Master on CodeForces ) A Structured Approach to Bit Manipulation for DSA and Competitive Programming If you face difficulty solving 1300–1600 rated problems on CodeForces , the core concepts required for those problems have been systematically covered in this playlist. If you struggle with Medium and Hard problems on LeetCode , the relevant Bit Manipulation techniques and patterns are also thoroughly discussed. Many students typically get stuck in: • XOR-based problems • Bitmasking techniques • Binary representation optimizations • Pattern recognition in contest settings To address these gaps, CodeHurdle has developed a structured playlist covering Bit Manipulation from fundamentals to advanced applications. This playlist includes: • Clear conceptual foundations • Patterns required for 1300–1600 rated problems • Coverage aligned with LeetCode Medium and Hard questions • A structured roadmap to improve rating and problem-solving confidence The objective is to build strong fundamentals and enable consistent performance in competitive programming contests. Playlist Link: https://lnkd.in/gCksrpYU YouTube Channel: https://lnkd.in/gWgbEdiS #DSA #CompetitiveProgramming #BitManipulation #Codeforces #LeetCode #ProblemSolving

Every developer has experienced this. You spend hours debugging your code, checking every function, rewriting logic… and the real problem ends up being a tiny mistake. Sometimes the biggest lessons in programming come from the smallest bugs. Read the story: https://lnkd.in/dTF-2uV7 #programming #webdevelopment #coding #softwareengineering

🚀 Day 9/60 — LeetCode Discipline Problem Solved: Container With Most Water (Revision) Difficulty: Medium Today’s session focused on revisiting this classic two-pointer optimization problem. The key insight was understanding how intelligently moving pointers can reduce time complexity while still exploring the optimal solution space. 💡 Focus Areas: • Strengthened two-pointer optimization technique • Improved area maximization intuition • Practiced greedy pointer movement logic • Focused on writing clean and efficient implementation ⚡ Performance Highlight: Achieved ~81% runtime efficiency on submission. Steady practice. Sharper instincts. Stronger foundations. #LeetCode #60DaysOfCode #100DaysOfCode #DSA #TwoPointers #Greedy #Algorithms #DataStructures #ProblemSolving #CodingJourney #SoftwareEngineering #TechCareers #Programming #Developers #CodingLife

🚀 Day 79 of My Coding Challenge Today I solved the Super Reduced String problem. The challenge was to repeatedly remove adjacent matching characters from a string until no such pairs remain. If the final string becomes empty, we return "Empty String". 💡 Key Idea: I used a stack-based approach to efficiently remove adjacent duplicates in O(n) time complexity. 📌 Example: Input: aaabccddd Output: abd Steps: aaabccddd → abccddd → abddd → abd 🧠 What I practiced today: Stack-based string processing Efficient character comparison Problem-solving with linear time complexity Consistency is the key — every day a little progress toward becoming a better developer. 💻🔥 #Day79 #CodingChallenge #LeetCode #Programming #ProblemSolving #DataStructures #100DaysOfCode #DeveloperJourney

Today I worked on leetcode problem no. 1415 The k-th Lexicographical Happy String of Length n.” First, let's understand the concept. A happy string is a string that: Uses only the characters 'a', 'b', 'c' Does not allow two adjacent characters to be the same Concepts practiced: Backtracking Lexicographical ordering Recursion Start with an empty string Try adding 'a', 'b', 'c' Skip a character if it is the same as the previous one When the string length becomes n, we found one valid happy string Since we generate them in lexicographical order, the moment we reach the k-th string, that is our answer. #leetcode #leetcode1415 #dsa #datastructures #algorithms #backtracking #recursion #coding #programming #problemSolving #codingpractice #softwareengineering #developer #codinglife #computerscience #codingjourney #learncoding #codingcommunity #buildinpublic #100daysofcode #competitiveprogramming #cpp #techskills

🎯 Control Flow Statements Demystified 🎯 Whether you're just starting out or brushing up on fundamentals, understanding control flow is essential to writing clean, efficient code. ✅ If – Make decisions based on conditions ✅ Switch – Handle multiple cases with clarity ✅ Loops – Automate repetition with precision #Programming #Coding #SoftwareEngineering #TechCareers #CodeNewbie #LearnToCode #WebDevelopment #ComputerScience #DevCommunity #100DaysOfCode

✅ Day 592: Accepted on Codeforces! Problem B — Construct the String | Round 634 (Div. 3) One line of code. That's all it took. 🤯 Sometimes competitive programming rewards you for thinking smart, not hard! 🔗Problem Link: https://lnkd.in/g9rzf8JQ 🧩 The Problem: Construct a string of length n such that every consecutive window of size a contains exactly b distinct characters. Use the smallest possible letters of the alphabet. 💡 The Insight — Pure Pattern Recognition: Ask yourself: what's the simplest string that guarantees every window of size a has exactly b distinct characters? 🔑 Just repeat the first b letters of the alphabet cyclically, across all n characters! Why does it work? Any window of size a ≥ b will always contain a full cycle of those b letters ✅ No extra letters are introduced → exactly b distinct chars, never more, never less ✅ Repeating cyclically ensures every window satisfies the constraint ✅ So the formula becomes: For position i → character = chr(ord('a') + i % b) Example: n=7, a=5, b=3 → abcabca ✨ n=6, a=1, b=1 → aaaaaa ✨ n=5, a=2, b=2 → ababa ✨ 📌 Key Takeaway: Before writing complex logic, always ask — "Does a simple repeating pattern satisfy all constraints?" In construction problems, the answer is often YES! 🎯 The elegance of competitive programming lies in finding the minimum structure that satisfies maximum constraints. 🧠 📧 sanjaykasaudhan09@gmail.com 📱 +91-9170580657 📋 Connect with me: https://lnkd.in/g_dRWtri #Codeforces #CompetitiveProgramming #Python #StringConstruction #OneLiner #DSA #ProblemSolving #Accepted #CodingJourney #Programming