Coderbroo community

If you’re looking to level up your problem-solving skills, here are some of the best LeetCode discussion guides I found super helpful: ✅ Two Pointers - https://lnkd.in/gXsz-sGb ✅ Binary Search - https://lnkd.in/gqXy9f35 ✅ Sliding Window - https://lnkd.in/gSpHQNyK ✅ Linked List - https://lnkd.in/gXV6svPk ✅ Trees - https://lnkd.in/gvC9JcaM ✅ Greedy - https://lnkd.in/gfCe5JJe ✅ Dynamic Programming - https://lnkd.in/gzbG_emR ✅ Graphs- https://lnkd.in/gTc3X5DC ✅ Monotonic Stack - https://lnkd.in/gsGkfx99 ✅ Bit Manipulation - https://lnkd.in/g2Hx8giu Please JOIN : https://t.me/coderbroo

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1️⃣ Arrays, Intervals, Two Pointers - Merge Intervals - Two Sum 2️⃣ Binary Search, Linked List - Koko Eating Bananas - Search in Rotated Sorted Array - Detect a Cycle in Linked List 3️⃣ Stack, Queues, Sliding Window - Trapping Rainwater - Sliding Window Maximum 4️⃣ Backtracking, Trees - Sudoku Solver - Binary Tree Maximum Path Sum 5️⃣ Heaps, Graphs - Top K Frequent Elements - Course Schedule II - Pacific Atlantic Water Flow - Cheapest Flights Within K Stops - Min Cost to Connect All Points 6️⃣ Greedy Algorithms, Dynamic Programming - Gas Station - Coin Change - Word Break - Edit Distance

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List of 25 questions that are most frequently asked in tech interviews: Graphs: 1. Course Schedule: https://lnkd.in/de8Q3NBS 2. 01 Matrix: https://lnkd.in/dV2P2TEs 3. Number of Islands: https://lnkd.in/drT2MpTz 4. Rotting Oranges: https://lnkd.in/dUQVwJ-d Arrays: 5. Insert Interval: https://lnkd.in/dfcEDFwB 6. 3Sum: https://lnkd.in/duGvuCjf 7. Product of Array Except Self: https://lnkd.in/dkGkjQVk 8. Combination Sum: https://lnkd.in/d3iStbGc 9. Merge Intervals: https://lnkd.in/dmFZxrVQ Stacks: 10. Evaluate Reverse Polish Notation: https://lnkd.in/d-y7Zw4C 11. Min Stack: https://lnkd.in/dqbh7PeV 12. Trapping Rain Water: https://lnkd.in/dS_svBAm Binary Trees: 13. Binary Tree Level Order Traversal: https://lnkd.in/dM-VYbVB 14. Lowest Common Ancestor of a Binary Tree: https://lnkd.in/dUvJykgA 15. Serialize and Deserialize Binary Tree: https://lnkd.in/dW2cP5Wn Dynamic Programming: 16. Maximum Subarray: https://lnkd.in/dvjYye6E 17. Coin Change: https://lnkd.in/d7zZRg7H Binary Search: 18. Search in Rotated Sorted Array: https://lnkd.in/dEuh3gie 19. Time-Based Key-Value Store: https://lnkd.in/dbERGKUB Strings: 20. Longest Substring Without Repeating Characters: https://lnkd.in/d_vZrZda 21. Minimum Window Substring: https://lnkd.in/de8aeeQD Heap: 22. K Closest Points to Origin: https://lnkd.in/dUtCqYf4 23. Find Median from Data Stream: https://lnkd.in/ddDgWqUv Recursion: 24. Permutations: https://lnkd.in/dTUqmAfy 25. LCS (Longest common subsequence) __ ✅ *Join WhatsApp channel* : https://whatsapp.com/channel/0029Va5vxHEE50UeHkYntv0N

DP patterns to focus 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟭: 𝗙𝗶𝗯𝗼𝗻𝗮𝗰𝗰𝗶/𝗦𝗶𝗺𝗽𝗹𝗲 𝗥𝗲𝗰𝘂𝗿𝗿𝗲𝗻𝗰𝗲 Climbing Stairs - https://lnkd.in/giTchSuB Min Cost Climbing Stairs - https://lnkd.in/g9DXiD-H Dice Combinations - https://lnkd.in/gmwhP22y Frog 1 - https://lnkd.in/gjviS2BP 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟮: 𝟬/𝟭 𝗞𝗻𝗮𝗽𝘀𝗮𝗰𝗸 Target Sum - https://lnkd.in/gEx3dCFV Partition Equal Subset Sum - https://lnkd.in/gESS8N7e Knapsack - https://lnkd.in/gjha5a2G Knapsack 1 - https://lnkd.in/gfTDwZv5 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟯: 𝗨𝗻𝗯𝗼𝘂𝗻𝗱𝗲𝗱 𝗞𝗻𝗮𝗽𝘀𝗮𝗰𝗸 Coin Change - https://lnkd.in/gBs2BM7j Coin Combinations I - https://lnkd.in/gE5AWDxW Cutting Rod - https://lnkd.in/gjGsA8ys 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟰: 𝗟𝗼𝗻𝗴𝗲𝘀𝘁 𝗖𝗼𝗺𝗺𝗼𝗻 𝗦𝘂𝗯𝘀𝗲𝗾𝘂𝗲𝗻𝗰𝗲 (𝗟𝗖𝗦) Uncrossed Lines - https://lnkd.in/gEHhw6u9 Edit Distance - https://lnkd.in/gyYVE88f LCS - https://lnkd.in/gjU5FU5r 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟱: 𝗟𝗼𝗻𝗴𝗲𝘀𝘁 𝗜𝗻𝗰𝗿𝗲𝗮𝘀𝗶𝗻𝗴 𝗦𝘂𝗯𝘀𝗲𝗾𝘂𝗲𝗻𝗰𝗲 (𝗟𝗜𝗦) Longest Increasing Subsequence - https://lnkd.in/g3HAgkwK Increasing Subsequence - https://lnkd.in/gwwUi6Xb Vacation - https://lnkd.in/g4thCcxi 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟲: 𝗚𝗿𝗶𝗱-𝗕𝗮𝘀𝗲𝗱 𝗗𝗣 Unique Paths - https://lnkd.in/gckwVvmm Grid Paths - https://lnkd.in/gzxH5Hs4 Grid 1- https://lnkd.in/g6EZArGQ 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟳: 𝗜𝗻𝘁𝗲𝗿𝘃𝗮𝗹 𝗗𝗣 Burst Balloons - https://lnkd.in/gwwRtcwK Palindrome Partitioning II - https://lnkd.in/gkiwGJZw Slime - https://lnkd.in/gxQwjZnB 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟴: 𝗧𝗿𝗲𝗲 𝗗𝗣 House Robber III - https://lnkd.in/gWJjFDTV Tree Matching- https://lnkd.in/gY2bfrJU Independent Set - https://lnkd.in/gF9AnQ5N 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟵: 𝗕𝗶𝘁𝗺𝗮𝘀𝗸𝗶𝗻𝗴/𝗦𝘁𝗮𝘁𝗲 𝗖𝗼𝗺𝗽𝗿𝗲𝘀𝘀𝗶𝗼𝗻 Campus Bikes II - https://lnkd.in/gNdqQkv7 Elevator Rides - https://lnkd.in/gEURDjQh Traveling Salesman - https://lnkd.in/gfabcxXt 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟭𝟬: 𝗗𝗶𝗴𝗶𝘁 𝗗𝗣 Numbers With Repeated Digits - https://lnkd.in/gRwS7GhC Removing Digits - https://lnkd.in/g3XMWdMR Sushi - https://lnkd.in/gKSzxYKY 𝗣𝗮𝘁𝘁𝗲𝗿𝗻 𝟭𝟭: 𝗣𝗿𝗼𝗯𝗮𝗯𝗶𝗹𝗶𝘁𝘆/𝗘𝘅𝗽𝗲𝗰𝘁𝗮𝘁𝗶𝗼𝗻 𝗗𝗣 Dice Roll Simulation - https://lnkd.in/gstHYfP9 Candy Lottery - https://lnkd.in/gFU88CE3 Coins - https://lnkd.in/gaq5UNHq

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DSA Here are 40 most asked DSA questions to clear your next interview -------------------------------------------------- ➤ 𝗔𝗿𝗿𝗮𝘆𝘀 𝗮𝗻𝗱 𝗦𝘁𝗿𝗶𝗻𝗴𝘀: 1. Find the maximum sum subarray. 2. Find all substrings that are palindromes. 3. Implement the "two sum" problem. 4. Implement Kadane's algorithm for maximum subarray sum. 5. Find the missing number in an array of integers. 6. Merge two sorted arrays into one sorted array. 7. Check if a string is a palindrome. 8. Find the first non-repeating character in a string. 9. Write a program to remove duplicates from a sorted array. ➤ 𝗟𝗶𝗻𝗸𝗲𝗱 𝗟𝗶𝘀𝘁𝘀: 10. Reverse a linked list. 11. Detect a cycle in a linked list. 12. Find the middle of a linked list. 13. Merge two sorted linked lists. 14. Implement a stack using linked list. 15. Find the intersection point of two linked lists. ➤ 𝗦𝘁𝗮𝗰𝗸𝘀 𝗮𝗻𝗱 𝗤𝘂𝗲𝘂𝗲𝘀: 16. Implement a stack using an array. 17. Implement a stack that supports push, pop, top, and retrieving the minimum element. 18. Implement a circular queue. 19. Design a max stack that supports push, pop, top, retrieve maximum element. 20. Design a queue using stacks. ➤ 𝗧𝗿𝗲𝗲𝘀 𝗮𝗻𝗱 𝗕𝗶𝗻𝗮𝗿𝘆 𝗦𝗲𝗮𝗿𝗰𝗵 𝗧𝗿𝗲𝗲𝘀: 21. Find the height of a binary tree. 22. Find the lowest common ancestor of two nodes in a binary tree. 23. Validate if a binary tree is a valid binary search tree. 24. Serialize and deserialize a binary tree. 25. Implement an inorder traversal of a binary tree. 26. Find the diameter of a binary tree. 27. Convert a binary tree to its mirror tree. ➤ 𝗚𝗿𝗮𝗽𝗵𝘀: 28. Implement depth-first search (DFS). 29. Implement breadth-first search (BFS). 30. Find the shortest path between two nodes in an unweighted graph. 31. Detect a cycle in an undirected graph using DFS. 32. Check if a graph is bipartite. 33. Find the number of connected components in an undirected graph. 34. Find bridges in a graph. ➤ 𝗦𝗼𝗿𝘁𝗶𝗻𝗴 𝗮𝗻𝗱 𝗦𝗲𝗮𝗿𝗰𝗵𝗶𝗻𝗴: 35. Implement (bubble, insertion, selection, merge) sort. 36. Implement quicksort. 37. Implement binary search. 38. Implement interpolation search. 39. Find the kth smallest element in an array. 40. Given an array of integers, count the number of inversions it has. An inversion occurs when two elements in the array are out of order. - But wait, there's more! Next week, on Dynamic Programming (DP), Backtracking, Hashing, Heap, Tries, and Greedy Algorithms. - Get ready for 40 questions that will test your problem solving skills and help you master DSA. Stay curious, keep learning, and keep sharing!