Sumit

Software Engineer | Class of 2026. Backend Developer specializing in JavaScript and Node.js. Knight at LeetCode | Newbie at Codeforces.

[Sumit @commitbackend]

Day 8/100.

Dedicated today entirely to DSA revision on LeetCode. Cleared a massive block of classic problems to reinforce core algorithmic patterns, specifically focusing on:

Two Pointers
Sliding Window
Intervals

#100DaysOfCode #LeetCode #CompetitiveProgramming #Cpp

[Sumit @commitbackend]

Day 7/100.

LeetCode: 3737. Count Subarrays With Majority Element I. Solved this counting problem focusing on subarray tracking and element frequency.

Codeforces: 1907B. YetnotherrokenKeoard. Handled the logic for processing the string efficiently.

#100DaysOfCode #Codeforces

[Sumit @commitbackend]

Day 6/100.

LeetCode: Cleared a matrix multiplication problem in C++.
Codeforces: C - Train and Queries.Debugged and optimized through multiple TLEs before finally locking in the Accepted verdict.

Persistence is key.

#100DaysOfCode #LeetCode #Codeforces #Cpp

[Sumit @commitbackend]

Day 5/100: Backend Architecture.

Built the real-time bidding engine for a MERN auction platform.
Implemented MongoDB transactions to ensure atomic bid and price synchronization.
Engineered a live bid feed using Server-Sent Events (SSE) over standard HTTP.
#100DaysOfCode #Backend

[Sumit @commitbackend]

Day 4/100.

LeetCode POTD: 1189. Maximum Number of Balloons (Frequency mapping).

Codeforces: C - Make Equal Again & A - Game 23 (Debugged through TLE/WA to get the AC).

#100DaysOfCode #LeetCode #Codeforces #Cpp

[Sumit @commitbackend]

Day 3/100.
Cleared problems across two platforms today:

LeetCode: 1833. Maximum Ice Cream Bars.
Codeforces: 2193C Replace and Sum.

#100DaysOfCode #LeetCode #Codeforces

[Sumit @commitbackend]

Day 2/100.

LeetCode POTD: 1840. Maximum Building Height (Hard).

Solved in C++ using a two-pass sweep algorithm. Propagated height restrictions left-to-right, then right-to-left, before calculating the maximum peaks between valid points.

#100DaysOfCode #LeetCode #Cpp

[Sumit @commitbackend]

@astra_095 @X Hi

[Sumit @commitbackend]

@RamanRjha4647 @X Let's connect!

[Sumit @commitbackend]

Day 1 of 100: Codeforces Grind.
Locked in and solved three problems today:

That is two 1000-rated problems and one 1100-rated problem, all successfully cleared in C++. Focusing on clean execution and steady progression.

#100DaysOfCode #Codeforces #CompetitiveProgramming #Cpp

[Sumit @commitbackend]

It is time to lock in. Today, I am officially starting a 100-Day DSA, Dev, and CP Challenge.

The focus for the next 100 days:

Advanced C++ Competitive Programming
Full-Stack Development (MERN + AI)
Interview Prep & System Design

Let's get to work. #100DaysOfCode #BuildInPublic

[Sumit @commitbackend]

Hey, @X
I'm looking to connect with people interested in:

→ Frontend
→ Backend
→ Full Stack
→ DevOps
→ LeetCode
→ AI/ML
→ Data Science
→ UI/UX
→ Freelancing
→ Startups

Say hi & let's grow together
#Connect

[Sumit @commitbackend]

@shivi1026 Let's connect!

[Raj.D @Drago_18_]

Hey @X algorithm 👋

Looking to connect with developers and builders who are into:

• Frontend Development
• Backend Development
• Full-Stack Engineering
• AI / ML
• Data Science
• LeetCode & DSA
• Freelancing

If you’re working on any of these, let’s connect and grow together 🤝

[Sumit @commitbackend]

@Kiyo__don Let's connect!