Day 84 ✅ | #gfg160 Challenge @geeksforgeeks.🔁Solved: Construct Tree from Inorder & Preorder 🌳.✅ Using: Pre-order traversal & Hash map.🎯 Goal: Rebuild binary tree from traversal arrays .📈 T: O(n) | S: O(n). 👇 More ALT. #Python #DSA #BinaryTree #100DaysOfCode #GeekStreak2025

Day 93 ✅ | #gfg160 Challenge @geeksforgeeks.🔁 Solved: Lowest Common Ancestor in a BST.🎯 Goal: Find the LCA of two nodes in a Binary Search Tree.🎯 Approach: Iterative.📈 T: O(h) | S: O(1) .👇 More in ALT. #Python #DSA #100DaysOfCode #GeekStreak2025 #BinaryTree #BST

Day 80 ✅ | #gfg160 Challenge @geeksforgeeks.🔁Solved: Level Order Traversal 🌳.🎯Goal: Traverse a binary tree level by level from left to . right.🎯Approach: Breadth-First Search (BFS).📈 T: O(n) | S: O(n) — . 👇ALT. #Python #DSA #100DaysOfCode #GeekStreak2025 #BFS #BinaryTree

Day 92 ✅ | #gfg160 Challenge @geeksforgeeks.🔁 Solved: Fix Swapped Nodes in BST.🎯 Approach: Single-pass Inorder Traversal using Recursion and 4 Pointers.📈 T: O(n) | S: O(h) (due to recursion stack).👇 More in ALT. #Python #DSA #100DaysOfCode #GeekStreak2025 #BinaryTree

🧠 Yesterday was a power-packed session with @ali_In_bits sir !.🚀 Got an amazing explanation of the BFS algorithm and solved multiple tree questions hands-on. Feeling way more confident with level order traversal & queues! 💪.#BFS #BinaryTree #javascript入門講座 #DSA

Day 125 🌲.Solved some cool Binary Tree view-based problems:.📏 Diameter of Binary Tree.👈 Left View.👉 Right View.🔝 Top View.🔻 Bottom View.Visualizing trees from all sides!.#DSA #BinaryTree #Views #Recursion #100DaysOfCode #Sheryians

🔄 Bottom-Up Level Order Traversal (BFS) 🌳.📥 Traverse level-by-level, but store from bottom. 🧠 TC: O(2n).📦 SC: O(n) (for queue and result). #DSA #BinaryTree #LeetCode #TUF #GFG #X #Coding

🚀 Just solved 4 more DSA problems:. BST Iterator.Recover BST.BST from Preorder.Populating Next Right Pointers. Grinding LeetCode every day — step by step!. #LeetCode #100DaysOfCode #DSA #Coding #Java #BinaryTree #DataStructures #Algorithms

Day 27/100 of #100DaysOfCode.Solved “Construct Binary Tree from Inorder & Postorder” using O(n) approach. ✅Used unordered_map for fast index lookup.✅Recursive tree building with postIndex backtracking.✅Clean & efficient buildTree implementation!.#LeetCode #DSA #BinaryTree

Day 89 ✅ | #gfg160 Challenge @geeksforgeeks.🔁 Solved: Check if BT is a BST. 🎯 Approach: Morris Inorder Traversal. 📈 T: O(n) | S: O(1) . 👇More in ALT. #Python #DSA #100DaysOfCode #GeekStreak2025 #BinaryTree #BST

Day 124 🌳.Solved key Binary Tree problems today:.✅ Level Order Traversal (BFS) – iterative.✅ Symmetric Tree.✅ Path Sum.✅ Invert Binary Tree.Recursion + logic + structure = 🔥.#DSA #BinaryTree #Recursion #Leetcode #100DaysOfCode #Sheryians

Day 30/100 of #100DaysOfCode.Solved: Find Target Sum in BST 🎯.Used inorder traversal to convert BST to sorted array.✅Applied 2-pointer technique to find pair with sum = k.✅Strengthened BST + array logic.#LeetCode #CPP #DSA #BinaryTree #Coding #ProblemSolving

Day 16 of #100DaysOfCode .✅ Today’s Problems: .1. Valid Number.2. Count the Number of Arrays with K Matching Adjacent Elements(POTD) . #DSA #Algorithms #VIT #POTD #Strings #Binarytree #DrGVishwanathan #Leetcode #codedaily #DP

"Day 93 of #gfg160 #geekstreak2025!.Found the Lowest Common Ancestor (LCA) - because every family tree needs a reunion point! 🌳 #DSA #BinaryTree #CodingJourney

Day 86 of #GFG160.🌳 Tree Boundary Traversal.Printed the boundary in this order:.1️⃣ Left boundary (excluding leaves).2️⃣ Leaf nodes (L to R).3️⃣ Right boundary (excluding leaves, reversed).🕒 O(n) | 📦 O(h).#DSA #Java #BinaryTree #100DaysOfCode #GFG160

📅 𝐃𝐚𝐲-𝟏𝟔𝟒: 𝐃𝐞𝐞𝐩 𝐃𝐢𝐯𝐞 𝐢𝐧𝐭𝐨 𝐁𝐢𝐧𝐚𝐫𝐲 𝐓𝐫𝐞𝐞𝐬 🌳🔁. 𝐆𝐢𝐭𝐡𝐮𝐛: #Day164 #DSA #BinaryTree #Recursion #TreeTraversal #LeetCode #InterviewPrep #CodingDaily #ZigzagTraversal #BalancedTree

Day 29/100 of #100DaysOfCode.Solved “Convert Sorted Array to Binary Search Tree” on LeetCode .✅ Used Divide & Conquer with mid-element logic.✅ Recursive BST construction.✅ Balanced tree from sorted array in O(n) time.#LeetCode #BinaryTree #CPP #DevLog

🌳 Binary Tree learning continues!. ✔️ Checked if a tree is balanced using postorder. ✔️ Solved for Lowest Common Ancestor (LCA). Both key topics for tree-based coding rounds 🌱.Learning with @lovebabbar3 .🟦 GitHub: #DSA #BinaryTree #letsconnect

Day 119 🧠 – Recursion & Backtracking (Ali Bhaiya's DSA).✅ Subsets II.✅ Letter Combinations of a Phone Number.✅ Combination Sum.Recursion logic ✨ sharper than ever!.#DSA #BinaryTree #Backtracking #Recursion #Sheryians #100DaysOfCode