@jaykr31 profile picture
Jay Kumar Gupta @jaykr31
Joined March 2024
  • Tweets 132
  • Following 38
  • Followers 5
5 Photos and videos
Night before exam... Cyber security - paper tomorrow morning Syllabus - 5 units Covered - 1
9
Need peace✌️
9
75/75 – DSA Challenge ✅ solved -"Valid Number" Leetcode(Hard) It’s done. 75 days of logic, frustration, growth & patience. This challenge taught me that discipline > motivation. Critical thinking isn’t built overnight — it’s earned problem by problem. #Discipline #code #journey
1
27
Day 74/75: DSA Crunch Time! 2 days left! Revisiting Kadane’s, Prefix Sum, Two Pointers, Binary Search. Crushed _3Sum Closest_, _Bouquets with Adjacent Flowers_. Patterns > Problems! 💻📚 #DSA #CodingChallenge
55
Day 73 of 75 Days DSA Challenge 💻 Solved Intersection of Two Arrays on LeetCode today. Slowly inching toward the finish line — every problem solved is one step closer to mastery. #DSA #LeetCode #CodingJourney #75DaysChallenge
5
19
486
Day 72/75 of my DSA Challenge 💻 Solved “Reverse Nodes in Pairs.” Got stuck linking swapped pairs, fixed it using a dummy node prev pointer ✅ Sometimes your logic’s right—just needs a tweak. Debug, dry run, and enjoy the process! #DSA #Coding #ProblemSolving
1
33
🧠 Day 70–71 of my #75DaysDSAChallenge Solved 2 LeetCode problems today 💻 🔹 Money in the Leetcode Bank 🔹 3Sum Closest Every problem strengthens logic & consistency. Nearing the finish line 💪 #LeetCode #DSA #Coding #ProblemSolving #MCA #100DaysOfCode
39
Day 68/75 DSA Challenge Complete! - Solved LeetCode #12: Integer to Roman ✅ Used Greedy Approach: subtract largest Roman symbol repeatedly Also learned Positional Approach: split number into thousands, hundreds, tens, ones Complexity: O(1) time & space 1994 → MCMXCIV 💎
1
27
Day 14–29 of my #50DaysOfUpskillingChallenge: Networking deep-dive 🌐 Learned Internet basics, TCP/IP, HTTP, DNS, client-server & P2P, routers & switches, LAN/WAN/PAN, Bluetooth/Wi-Fi/SIM, TCP congestion, CDNs, VPNs. Foundation set for cloud! ☁️
1
46
Day 67/75 #DSAChallenge 🧩 Problem: Count subarrays with sum = goal (LeetCode 930) ✅ Brute-force: O(n²) → TLE ⚡ Optimized: Prefix sum freq array → O(n) Key takeaway: Prefix sums hashmap = 💡 for subarray sum problems! #LeetCode #DSA #Coding
1
16
Day 66/75 of #DSAChallenge ✅ Solved “Contains Duplicate II” on LeetCode: check if duplicates exist within k distance. Used unordered_map to track last occurrence → O(n) solution! #100DaysOfDSA #Coding #LeetCode #HashMap
6
🎆 Day 63 & 64/75 – #75DaysDSAChallenge Happy Diwali everyone! 🪔 Kept the streak alive! Solved 2 #LeetCode problems: 1️⃣ Next Greater Element I – find next greater in superset 🔍 2️⃣ Next Greater Element II – circular version using stack ♻️ Consistency > excuses 💪 #DSA #Diwali
1
18
Day 62/75 of my DSA Challenge 💪 Solved “Implement Queue using Two Stacks” on LeetCode today. Loved how it flips the logic of stacks to simulate a queue — great exercise in understanding LIFO vs FIFO! #DSA #LeetCode #75DaysChallenge #Coding #ProblemSolving
1
10
Day 60–61 of #75DaysDSAChallenge ✅ Solved: • Length of Last Word (string) • Stack using Two Queues (classic LIFO simulation) Consistency > speed. Learning, dry runs & understanding is the key! 💡
1
7
Day 59/75 – #75DaysDSAChallenge Solved “Longest Valid Parentheses” on LeetCode 💻 Learned how to track indices using a stack to find the longest continuous valid substring — not just total pairs. Every unmatched ) resets the base. Elegant logic 💡 #LeetCode #DSA #Coding
4
24
Day 58/75 – DSA Challenge 🧠 Solved Valid Parentheses on LeetCode — handling (), {}, and []. A simple yet powerful reminder that even small stacks hold big logic 😌 #75DaysChallenge #LeetCode #DSA #Coding
1
11
Extremely disappointed with @boatxcenter! My Rockerz 480 was returned damaged after a warranty claim. Now they offer Rockerz 430 — no RGB, no 60 hr playback. Three rejections & no proper resolution. Frustrating and unprofessional! @amangupta0303 @RockWithboAt
2
1
42
Day 57/75 – DSA Challenge Solved “Generate Parentheses” on LeetCode using recursion backtracking. Learned how to track open & close brackets and prune invalid paths early — that’s where real backtracking power shows 💡 #DSA #LeetCode #Backtracking #Recursion
1
20
Something shifted today. When I began DSA, recursion felt like dark magic. But on Day 56/75, while solving Roman to Integer & Combination Sum III, the logic formed in my head before I typed a line. That’s the quiet power of showing up daily. #75DaysOfDSA #LeetCode #DSA
15
Day 55/75 — Combination Sum II Used recursion backtracking to find all unique combos 🔁 Key trick: skip an element if it’s equal to the previous one — avoids duplicates ✅ Small condition, big impact 👊 #75DaysOfDSA #LeetCode #Recursion #Backtracking
14
Load more