CS Student | Building in public | Learning in public 💻 | Goal: 20 LPA |
Joined May 2026
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Day 2 of C : From Syntax to Systems 🚀
Built a functional with:
✅✅ Robust error handling for negative inputs.
✅ Overdraft safety checks
✅ Precision formatting & Switch-Case logic
Full code: github.com/DevMaazCodes/C---…
#100DaysOfCode #CPlusPlus #BuildandLearnInPublic
ALT Full source code also available on github.
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Day 38: Foundations 🔄
Reviewing core sorting algorithms: Merge, Quick, Selection, Bubble, and Insertion. Active recall session to lock in complexities and logic before moving to hard array problems.
Solidifying the basics. 🧠
#100DaysOfCode #DSA #BuildinPublic
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Jun 13
Day 37: Locked In
• Buy/Sell Stock: Single scan with min-tracking (O(N) time & O(1) space)
• Rearrange Array: Two-pointer lane filling over nested shifts, O(N) time & space
No brute force. Just single-pass efficiency.
github.com/DevMaazCodes/DSA_…
@striver_79
#BuildinPublic #DSA #cpp
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Jun 12
Day 36: Single Pass ⚔️
• Majority Element: Boyer-Moore O(N) time / O(1) space).
• Max Subarray: Flipped O(N^2) brute force into a sharp O(N) Kadane's.
No more nested loops. 🧠
Code pushed-
github.com/DevMaazCodes/DSA_…
@striver_79 @takeUforward_ @ezSnippet
#100DaysOfCode #DSA
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Jun 11
Day 35: Clean Sweeps ⚔️
• Two Sum: Locked down Hashing vs. 2-Pointer Greedy tradeoffs.
• Sort 0s, 1s, 2s: Flawless 1st-try Dutch National Flag O(N) time / O(1) space.
Bugs squashed. Code is sharp. 🧠
Code pushed: github.com/DevMaazCodes/DSA_…
@striver_79 @ezSnippet
#DSA #cpp
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Jun 10
Day 34: 2 Wins ⚔️
• Single Number: O(N) using bitwise XOR.
• Longest Subarray (Sum K): Perfected Hashing O(N) and Sliding Window O(1) space complexities.
Locked down the K=0 interview edge cases. 🧠
Code pushed: github.com/DevMaazCodes/DSA_…
@striver_79 @ezSnippet
#DSA #cpp
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Day 33: Two DSA problems cooked 🚀
• Missing Number (XOR)
• Max Consecutive Ones using simple looping
Paused "Find Single Number" to hang out with a friend.
Balance is key! 🤝
@striver_79 @takeUforward_
@ezSnippet
Progress: github.com/DevMaazCodes/DSA_… 🔥
#100DaysOfCode #DSA #cpp
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Day 32: 5 DSA problems cooked 🚀
• Left&Right Rotate by 1 & Rotate by K.
• Linear Search.
• Move Zeroes & Union of Sorted Arrays.
Fought edge cases to lock in optimal two-pointer code
All code pushed to GitHub:
github.com/DevMaazCodes/DSA_…
#100DaysOfCode #DSA #buildinpublic
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Day 31- Arrays section of Striver's A2Z sheet started
Crushed Second Largest Element and Remove Duplicates in-place using optimal O(N) single-pass / two-pointer logic.
Code pushed: github.com/DevMaazCodes/DSA_…
Monday ready. 🚀🔥
#DSA #cpp #buildinpublic @striver_79 @takeUforward_
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Day 30: Sorting section of Striver's A2Z sheet is done.
Dismantled Quick Sort in C today. Handled the partition logic and optimized the recursive base case with a clean guard clause. In-place sorting conquered.
Code pushed: github.com/DevMaazCodes/DSA_…
#DSA #cpp #buildinpublic
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Day 29: Heavy grind of Merge sort followed up with recursive Bubble & Insertion Sort. Accidentally built an O(N^3) sorting algo first, but optimized it back to standard O(N^2). Quick Sort is the final boss tomorrow.
Code pushed at: github.com/DevMaazCodes/DSA_…
#DSA #cpp #buildinpublic
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Day 28: Step 2.1 Done!
Built Selection, Bubble, & Insertion sorts from scratch in C . Mastered index tracking, O(N) adaptive break flags, and backward-shifting loop logic.
Ready for Merge & Quick sort next!👉
Code pushed: github.com/DevMaazCodes/DSA_…
#DSA #BuildInPublic @striver_79
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Day 27: Step 1.6 (Hashing) complete!
Built an optimized frequency tracker from scratch:
• Used Unordered Map for O(1) tracking
• Separated frequency logic from element keys
• Handled min/max edge cases cleanly
Code pushed: github.com/DevMaazCodes/DSA_…
#BuildInPublic #cpp #DSA
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May 31
Day 26: Post-Eid grind is active.
Huge progress on Step 1.6 (Basic Hashing):
• Mastered Pre-computation vs Fetching
• Built integer frequency arrays
• Optimized character hashing via ASCII mapping (ch - 'a')
Github updated: github.com/DevMaazCodes/DSA_…
#DSA #Cpp #BuildInPublic
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May 29
Taking a 2-day pause for Eid and hosting family dawats. Back to the Striver sheet and Basic Hashing on Monday!
Again, wish you all a very happy EID!✨🎉
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May 28
Day 23: Taking a pause on Striver's A2Z sheet today to celebrate Eid ul Adha with family! 🌙
Stepping away from the recursion trees to focus on the food fest. Back to Step 1.6 and Basic Hashing tomorrow.
Eid Mubarak everyone! 🎉
#DSA #BuildInPublic
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May 27
Day 21: Finished Step 1.5 of Striver's sheet.! 🌳
• Avoided Stack Overflows using base conditions
• Coded recursive array reversals & palindrome checks
• Understood multiple recursive calls via Fibonacci
Repo updated: 👉 github.com/DevMaazCodes/DSA_…
#DSA #BuildInPublic
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May 26
Day 20: Basic Maths is done!
🔢Wrapped up the entire module on Striver's A2Z sheet today.
Covered digit extraction and its TC.
sqrt(N) optimized factor hunting and its TC.
The Euclidean Algorithm for GCD and its TC.
Code pushed: github.com/DevMaazCodes/DSA_…
#DSA #Cpp #BuildInPublic
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May 25
Day 19: C STL is fully wrapped! 🚀
Demolished everything from Vectors to nested Maps and custom comparators. Learning STL made me realize C is not that boring.
Pushed all my clean, commented notes to GitHub:
👉 github.com/DevMaazCodes/DSA_…
#DSA #Cpp #BuildInPublic
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May 24
Day 18: Crushed C STL linear containers! 🚀
• Vectors, Lists, Deques
• Stacks (LIFO) & Queues (FIFO)
• Priority Queues (Max/Min Heaps)
Check out my clean reference files on GitHub: github.com/DevMaazCodes/DSA_…
More to go tomorrow📈📈📈.
#cpp #DSA #buildinpublic #learninpublic
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May 23
Day 17: Started the C STL module! 📦
Spent today mastering std::pair and std::vector. Since I've already built dynamic arrays manually using raw memory allocation, seeing how vectors handle capacity scaling under the hood makes complete sense.
Keep building. 🚀 #buildinpublic
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