Rajath @rajath_m_r

🎉 Happy Dasara! Day 100 Java: solved delete leaf node X & started BST (search + special property) Day 15 MERN: JS arrays – push, pop, shift, unshift, splice, includes, concat… 💪 Next milestone: 365 days of coding! #sigmabatch #100daysofcoding #HappyDasara

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Day 99 Java 🌳: Sum Tree, Univalued Tree, Invert Tree Day 14 MERN 💻: JS string methods (trim, slice, replace, toUpperCase, toLowerCase, indexOf, repeat), immutability & arrays 🚀 #100daysofcoding #dsa #mernstack #sigmabatch

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Day 98 📅 (30 Sep 2025) Learnt: 🌳 Minimum Distance between 2 nodes (using LCA) 🌳 Kth Ancestor in a Binary Tree Each step in trees is sharpening my problem-solving 🧩 #sigmabatch #apnacollege #sigma6 #dsa #100daysofcoding

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🌳 Day 95: Learnt the Top View of a Binary Tree 👀 Used BFS + HashMap to capture first nodes at each horizontal distance. Loving how visual tree problems sharpen my DSA thinking! 🚀 #sigmabatch #apnacollege #sigma6 #dsa #javadevelopment #100daysofcoding

📅 Day 94 of my Java DSA journey Learnt 🌳 Subtree of a Tree problem Recursive comparison of trees Handling base cases & structural match Stronger grasp of recursion & tree traversal #sigmabatch #apnacollege #sigma6 #codingjourney #dsa

Day 93 🌳📚 Learnt 2 ways to find Tree Diameter: 1️⃣ Using height fn + diameter fn 2️⃣ Single fn computing both height & diameter (optimized ⚡) Efficiency matters! 🚀 #sigmabatch #apnacollege #sigma6 #javadevelopment #100daysofcoding

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Day 92 🌳 Learnt key Binary Tree concepts today: Level Order Traversal Height of Tree Count of Nodes Sum of Nodes Loving the recursive beauty of trees in Java! 🚀 #sigmabatch #apnacollege #sigma6 #codingjourney #dsa #100daysofcoding

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Day 91 of learning Java 🌳 Started with Trees today! Built a binary tree Implemented inorder, preorder & postorder traversals Excited to dive deeper into tree concepts ahead 🚀 #sigmabatch #apnacollege #sigma6 #codingjourney #dsa

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📅 22nd Sept 2025 | Day 90 Today I solved Kth Largest Odd Number & Best Time to Buy/Sell Stocks in Java. Learned edge cases & single-pass optimization! 🚀 #sigmabatch #codingjourney #dsa #javadevelopment #100daysofcoding

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Day 89 of Java 🚀 Learnt the Maximum Balanced String Partition Problem 🧩 👉 Count L & R, partition when balance = 0 ⚡ O(n) time, O(1) space #sigmabatch #apnacollege #sigma6 #javadevelopment #100daysofcoding #dsa

📅 20th Sept 2025 🚀 DSA Journey – Day 88 Learnt the Chocola Problem 🍫 using Greedy Algorithms. ➡️ Break with min cost ➡️ Sort costs descending ➡️ Efficiency via Greedy #sigmabatch #apnacollege #dsa #100daysofcoding

Wrote my CA test 🎓 and participated in my 1st hackathon at BMSIT 🚀 with my teammate Naaneshwar! Built a Meridian Marketplace project, completed all challenges & presented to judges. Key lesson: time management is 🔑. A tiring yet amazing day! 💯 #Hackathon

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Day 86 of learning Java ☕ Today I learnt the Indian Coins Problem 🪙 using the greedy algorithm – picking the highest denomination first to minimize coins. 💡 #sigmabatch #apnacollege #sigma6 #dsa #javadevelopment #100daysofcoding

Day 85 of Java 🚀 📅 16th Sept 2025 Learnt: Min Absolute Difference in Pairs Max Length Chain of Pairs Greedy algorithms & sorting make optimization problems efficient ✅ #sigmabatch #apnacollege #sigma6 #dsa #100daysofcoding

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Day 84 of #Java 🚀 Learnt the Fractional Knapsack Problem today 🎒💰 Greedy Approach ⚡ Value/Weight ratio 📊 Fractional selection for max profit Another step forward in mastering DSA & Java 💻 #sigmabatch #apnacollege #sigma6 #dsa #100daysofcoding

Day off today 📚 Preparing for upcoming internals ✍️ Balancing academics & coding is key! Back to Java & MERN tomorrow with fresh energy 🚀 #sigmabatch #apnacollege #sigma6 #shradhakaapra #amangupta #learningeveryday

Day 82️⃣ Java → revised key concepts 📝 Day 13️⃣ MERN → started JS 🚀 console, variables, data types operators, precedence, NaN let/const/var, assignment, unary strings, template literals null, undefined, boolean alerts, prompts, TS intro #100daysofcoding #mernstack #dsa

Day 81 🚀 | 📅 12th Sept 2025 Learnt how to sort end points using lambda functions ➡️ then applied it to solve the Activity Selection Problem 🎯 #sigmabatch #apnacollege #sigma6 #dsa #javadevelopment #100daysofcoding

Day 80️⃣ of learning Java 💻 ✔️ Learned the Activity Selection Problem (when end times are sorted) 👉 Next: handling it when end times are not sorted! 🚀 #sigmabatch #apnacollege #sigma6 #codingjourney #dsa #javadevelopment #100daysofcoding

Day 79 of learning Java ☕ 📅 10th Sept 2025 Today I learnt how to implement Stack (LIFO) & Queue (FIFO) using Deque in Java 🔥 Super flexible data structure! 💻 #sigmabatch #apnacollege #sigma6 #shradhakaapra #dsa #javadevelopment #100daysofcoding

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