From DSA Confusion to Consistency with LeetCode

🚀 Milestone: 200 DSA Problems Solved on LeetCode I recently crossed 200 problems, but more importantly — I’ve started understanding how to think, not just how to solve. Here’s what actually changed: 🔹 Patterns > Problems Stopped treating questions individually. Focused on patterns like: Sliding Window Two Pointers Binary Search on Answer DFS/BFS Greedy & Prefix Sum 🔹 From Brute Force → Optimal Thinking Earlier: “How do I solve this?” Now: “What’s the most optimal way and why?” 🔹 Mistakes I Made (and Fixed) Jumping to code without clarity Ignoring edge cases Not revisiting wrong questions 🔹 What I Do Differently Now Write approach before coding Dry run with edge cases Revisit tough problems after a few days 🔹 Current Focus Medium → Hard transition Time & space optimization Writing clean, interview-ready code This is just the beginning. If you're preparing too — stop counting questions and start building thinking. #DSA #LeetCode #CodingInterview #ProblemSolving #SoftwareEngineering

🚀 340+ LeetCode Problems Solved What started as random problem solving has now become a consistent habit. I’ve crossed 340+ problems on LeetCode, and more importantly, improved how I approach problems. Breakdown: • Easy: 144 • Medium: 182 • Hard: 14 Key lessons from this journey: • Consistency beats intensity — even 2–3 problems daily compounds over time • Struggling is part of the process — the real learning happens when you don’t get it immediately • Patterns matter more than problems — recognizing approaches (DP, Graphs, Sliding Window) is key • Revisiting problems is underrated — solving once is not enough • Clean thinking > fast coding — clarity leads to optimal solutions This journey has helped me build: • Strong problem-solving skills • Better debugging and analytical thinking • Confidence in tackling interview-level questions Next target: 500+ problems 💯 Let’s keep building 🚀 #LeetCode #DSA #CodingJourney #SoftwareEngineering #Placements2026

🚀 DSA Practice Today I worked on LeetCode 73 – Set Matrix Zeroes. At first, I thought it was just another array problem… but it turned out to be a really interesting challenge. 💡 My Learning Journey: Initially struggled to build the logic Tried multiple approaches and got stuck Slowly understood how modifying the matrix directly can affect future computations Finally learned how to optimize space by using the first row & column as markers 🔥 Key Takeaway: Sometimes the problem is not about coding fast, but about thinking in the right direction. Struggling with logic helped me understand the importance of in-place operations and space optimization. 📌 What I improved today: Better handling of matrix traversal Thinking about edge cases Patience in problem-solving Consistency over perfection 💪 #DSA #LeetCode #ProblemSolving #CodingJourney #SoftwareEngineering

🚀 Solved “Count Commas in Range II” on LeetCode! This problem looks simple but requires smart observation. Instead of iterating through every number, I used a mathematical approach by grouping numbers based on digit length. Numbers with ≥4 digits contribute commas, and each range adds predictable counts. By calculating contributions per range, I reduced the complexity to O(log n) instead of brute force. 💡 Key takeaway: Pattern recognition and range-based thinking can significantly optimize problems. Enjoyed this one! Have you tried it yet? #LeetCode #DSA #Coding #ProblemSolving #Tech #Learning

Day 45 of solving LeetCode problems. Solved: Defuse the Bomb This problem looks simple, but it tests a key concept — handling circular arrays with a sliding window. Instead of recalculating sums repeatedly (O(n*k)), I used a rolling window to bring it down to O(n). The tricky part was managing indices correctly when moving forward vs backward (k > 0 vs k < 0). Key takeaway: Efficient thinking is about avoiding redundant work, not just getting the correct answer. Consistency is good, but improving how you think matters more. #leetcode #dsa #problemSolving #coding #100DaysOfCode

🚀 Day 29 of 100 Days LeetCode Challenge Problem: Check if Strings Can be Made Equal With Operations I Day 29 is a short but pattern + constraint observation problem 🔥 💡 Key Insight: We can only swap characters where: 👉 j - i = 2 For a string of length 4, possible swaps: Index 0 ↔ 2 Index 1 ↔ 3 👉 That means: Positions (0,2) form one group Positions (1,3) form another group 🔍 Core Approach: 1️⃣ Group Characters Extract characters from: Even indices → [0, 2] Odd indices → [1, 3] 2️⃣ Compare Groups Sort both groups for s1 and s2 If both corresponding groups match → ✅ true Else → ❌ false 💡 Why This Works: You can rearrange freely within each group But cannot mix between groups 🔥 What I Learned Today: Limited operations define independent groups Think in terms of index grouping Small problems still test logical clarity 📈 Challenge Progress: Day 29/100 ✅ One day to 30! LeetCode, Strings, Swapping, Greedy, Pattern Recognition, Arrays, DSA Practice, Coding Challenge, Problem Solving #100DaysOfCode #LeetCode #DSA #CodingChallenge #Strings #ProblemSolving #TechJourney #ProgrammerLife #SoftwareDeveloper #CodingLife #LearnToCode #Developers #Consistency #GrowthMindset #InterviewPrep

Day 2 of 30: The power of LeetCode daily practice! 💻 One problem a day = 365 problems a year = Interview-ready confidence! Here's my approach to solving DSA problems: 1️⃣ Read the problem carefully - understand all constraints 2️⃣ Think of brute force first, then optimize 3️⃣ Write clean code with meaningful variable names 4️⃣ Test with edge cases before submitting 5️⃣ Review solutions from others to learn new approaches Today I solved: [Problem Name - will update with actual solved problem] The key isn't solving the hardest problems first. It's building muscle memory with easy/medium ones consistently. Consistency > Intensity #LeetCode #CodingChallenge #DSA #ProblemSolving #SoftwareEngineering #Day2 #30DaysOfLinkedIn

Clean code is not about being clever. It’s about surviving 6 months later. That “smart” one-liner you wrote today? Even you won’t understand it after a few sprints. Good code: → is boring → is readable → is predictable Because code is read 10x more than it’s written. Optimize for the next developer. (It might be you.) #DeveloperTips #CleanCode #SoftwareEngineering #Coding

🚀 Improving Problem-Solving with Consistency Strong fundamentals are more important than ever, especially in problem-solving and DSA. To improve my skills, I started solving 5 LeetCode problems daily. But I faced a common challenge where to start and how to stay consistent? So, I built a simple solution for myself. 📊 I created a dashboard that: Tracks my daily progress Organizes LeetCode problems topic-wise Helps me quickly jump to specific topics Keeps record of solved vs unsolved problems This helps me stay consistent and focused instead of wasting time deciding what to practice. 🔗 Check it out here: https://lnkd.in/gMqHaDuz This is currently Version 0.1, so there’s a lot of room for improvement. I’d love for you to try it out and share your feedback! If you're also working on improving your DSA skills, feel free to join me on this journey 💻 #LeetCode #DSA #ProblemSolving #CodingJourney #SoftwareEngineering #LearningInPublic

If you have seen the solution directly before giving 15-20 mins thought to a DSA problem, Congratulations, my friend, you have wasted a DSA problem successfully. Problem-solving is not about successfully submitted solutions on LeetCode or Codeforces; it is about developing a way of thinking with given tools under some constraints.