Rajorshi Mandal @codereaper360
BTech Student | MERN Stack Dev | Tech Content Creator | Writer @ Medium | Anime-Inspired Digital Artist | YouTube: Tech Simplified medium.com/@rajmack50 Joined April 2019-
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🌱 Day 84 of #gfg160 Challenge! Solved Construct Tree from Inorder & Preorder Traversal today! 🧩🌳 ✅ Used recursion with index mapping for efficient construction—tree rebuilt from its blueprints! Traversal turned into transformation! 🧠🛠️ #geekstreak2025 @geeksforgeeks
🌙 Day 83 of #gfg160 Challenge! Solved Mirror of a Binary Tree today! 🔄🌳 ✅ Swapped left & right recursively—simple yet elegant transformation! Reflected structure, amplified understanding! 🧠✨ #geekstreak2025 @geeksforgeeks
🌐 Day 82 of #gfg160 Challenge! Solved Diameter of a Binary Tree today! 🌳📏 ✅ Calculated longest path between any two nodes using post-order traversal—O(n) time, max depth magic! Widest stretch, deepest logic! 🧠💡 #geekstreak2025 @geeksforgeeks
🌲 Day 81 of #gfg160 Challenge! Solved Height of a Binary Tree today! 📏🌳 ✅ Used recursion to compute depth from root—simple yet powerful O(n) solution! Tree heights measured, logic elevated! 🧠✨ #geekstreak2025 @geeksforgeeks
🌳 Day 80 of #gfg160 Challenge! Solved Level Order Traversal today! 📚🔄 ✅ Used BFS with a queue to traverse each level—O(n) time, neat and structured! From root to leaf, one level at a time! 🧠✅ #geekstreak2025 @geeksforgeeks
🔍 Day 79 of #gfg160 Challenge! Solved Word Search today! 🔤🧭 ✅ Used DFS with backtracking to trace the word across the board—careful exploration, clean logic! Letters aligned, path defined! 🧠✨ #geekstreak2025 @geeksforgeeks
🧩 Day 78 of #gfg160 Challenge! Solved Sudoku Solver today! 🔢🧠 ✅ Used backtracking to fill the board with valid digits—classic constraint satisfaction in action! Grid by grid, logic wins! ✨📄 #geekstreak2025 @geeksforgeeks
👑 Day 77 of #gfg160 Challenge! Solved N-Queen Problem today! ♟️🧠 ✅ Applied backtracking to place queens safely—classic recursion with smart pruning! Queens placed, conflicts erased! 🔄✨ #geekstreak2025 @geeksforgeeks
⚡ Day 76 of #gfg160 Challenge! Solved Implement Pow(x, n) today! ✖️⬆️ ✅ Used binary exponentiation for efficient O(log n) time complexity! Power-packed logic, optimized to the core! 💡🧠 #geekstreak2025 @geeksforgeeks
🔁 Day 75 of #gfg160 Challenge! Solved Permutations of a String today! 🔤🧩 ✅ Used backtracking to generate all unique permutations—classic recursion in action! Every arrangement, perfectly placed! 🧠✨ #geekstreak2025 @geeksforgeeks
🧠 Day 74 of #gfg160 Challenge! Solved LRU Cache today! 🗂️🔄 ✅ Implemented with HashMap + Doubly Linked List for O(1) get & put operations! Caching made clever and super efficient! ⚡📦 #geekstreak2025 @geeksforgeeks
✂️ Day 73 of #gfg160 Challenge! Solved Remove Loop in a Linked List today! 🔗🚫 ✅ Detected loop using Floyd’s Algorithm, then unlinked it precisely—O(n) time, O(1) space! Loop removed, list restored! 🧠🔧 #geekstreak2025 @geeksforgeeks
🎯 Day 72 of #gfg160 Challenge! Solved Find the First Node of Loop in a Linked List today! 🔗🌀 ✅ Applied Floyd’s Algorithm, then reset one pointer to head—met at loop start! Pinpointed the cycle's origin like a pro! 🧠⚡ #geekstreak2025 @geeksforgeeks
🔁 Day 71 of #gfg160 Challenge! Solved Detect Loop in a Linked List today! 🕳️🔗 ✅ Used Floyd’s Cycle Detection Algorithm—two pointers, one smart trick! Loops detected, bugs rejected! 🧠🚀 #geekstreak2025 @geeksforgeeks
🧬 Day 70 of #gfg160 Challenge! Solved Clone a Linked List with Next and Random Pointers today! 🔗🎯 ✅ Used 3-step approach: interweaving, assigning randoms, and splitting—O(n) time & O(1) space! Deep copy, deep logic! 🧠✨ #geekstreak2025 @geeksforgeeks
➕ Day 69 of #gfg160 Challenge! Solved Add Numbers Represented by Linked Lists today! 🔗🔢 ✅ Handled digit-wise addition with carry—used reverse & traversal for clean O(n) logic! Linked digits, smooth addition! 🧠💫 #geekstreak2025 @geeksforgeeks
🔄 Day 68 of #gfg160 Challenge! Solved Linked List Group Reverse today! 🔗🌀 ✅ Reversed nodes in groups of k using recursion & pointer magic—O(n) time, O(n/k) space (recursive stack)! Groups reversed, logic rehearsed! 💪🧠 #geekstreak2025 @geeksforgeeks
🔗 Day 67 of #gfg160 Challenge! Solved Merge Two Sorted Linked Lists today! ➕📈 ✅ Used iterative & recursive approaches—efficient O(n + m) time with clean pointer handling! Smoother than a merge sort step! 🧠✨ #geekstreak2025 @geeksforgeeks
🔄 Day 66 of #gfg160 Challenge! Solved Rotate a Linked List today! 🔗📦 ✅ Found length, used modular arithmetic & adjusted pointers—O(n) time, O(1) space! Linked list rotations wrapped up smoothly! 💫🧠 #geekstreak2025 @geeksforgeeks
🔁 Day 65 of #gfg160 Challenge! Solved Reverse a Linked List today! 🔗🧠 ✅ Iterative pointer reversal done in O(n) time & O(1) space—classic and clean! Flipping links, strengthening logic! 🔄✨ #geekstreak2025 @geeksforgeeks
RAHUL ROY @rahulroy_28
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