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
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
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
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 💎
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! ☁️
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
@striver_79 Day 65/75 of #75DaysOfDSA 💻🔥
Solved “Maximum Points You Can Obtain from Cards” on #LeetCode
Pick k cards from either end to maximize points.
Trick? Find the min subarray sum of size (n−k) using a sliding window and subtract it from total 💡
10 days to go 💪
#DSA
🎆 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
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