CrackYourInternship & CrackYourPlacement Challenge

Excited to announce that I’m taking the #CrackYourInternship and #CrackYourPlacement challenge starting today [19-7-2024] for the next 45-60 days! 💪

Let’s crack this challenge together! 💪🔥

Connect with Me

• LinkedIn: LinkedIn Profile
• Twitter: TwitterHandle
• Email: Email

Leetcode Topics

• Array
• String
• Mathematical
• Searching and Sorting
• Matrix
• Linked-List
• Stack-and-Queue
• Tree
• Graph
• Dynamic Programming

Array (Solutions)

1. Best Time To Buy And Sell Stock
2. Chocolate Distribution Problem
3. Container With Most Water
4. Find All Duplicates In An Array
5. Find Duplicates Number
6. Four Sums
7. Majority Element
8. Merge Sorted Arrays
9. Move Zeros
10. Remove Duplicates From Sorted Array
11. Set Matrix Zeroes
12. Sort Colors
13. Subarray Sum Equals K
14. Subarray Sums Divisible By K
15. Three Sums
16. Two Sums
17. Best Time To Buy And Sell Stock II
18. Maximum Points You can Obtain from Cards
19. Word Search
20. Jump Game
21. All Unique Permutations of an Array
22. Game of Life
23. Longest Repeating Character Replacement
24. Reverse Pairs
25. Max value of Equation
26. Insert Delete GetRandom O(1) - Duplicates allowed
27. Largest Rectangle in Histogram

String (Solutions)

1. Integer To Roman
2. Longest Common Prefix
3. Valid Parentheses
4. Print all the Duplicate Character in a String
5. Find the Index of the First Occurrence of a Character in a String
6. Valid Palindrome II
7. Basic Calculator II
8. Generate Parentheses
9. Simplify Path
10. Reverse Words In A String
11. Group Anagrams
12. Print Anagrams Together
13. Rabin-Karp Algorithm for Pattern Searching
14. Smallest window in a string containing all the characters of another string
15. Valid Number
16. Word Wrap
17. Integer to English Words

Mathematical

1. Add Binary
2. Maximum Product of Three Numbers
3. Product Array Puzzle
4. Excel Sheet Column Title
5. Minimum Moves to Equal Array Elements

Searching-and-Sorting

1. Ceiling in Sorted Array
2. Permute Two Arrays Sum Every Pair Greater Than K
3. Find Pair Given Difference
4. Permutations in Array
5. Smallest Positive Missing Number
6. Check if Reversing a Sub Array make the Array Sorted
7. Radix Sort
8. Find Peak Element
9. Allocate Minimum Number of Pages
10. Search in Rotated Sorted Array
11. Minimum Swaps to Sort

Matrix

1. Spiral Matrix
2. Find the Number of Islands
3. Rotate Image
4. Maximum Size Rectangle
5. Matrix Replacement

Linked-List

1. Convert Binary Number to Integer
2. Intersection Of Two Linked Lists
3. Linked List Cycle
4. Merge Two Sorted Lists
5. Middle Of The Linked List
6. Multiply Two Linked List
7. Palindrome Linked List
8. Remove Duplicates From Sorted List
9. Remove Linked List Elements
10. Reverse Linked List
11. Sort Linked List 0, 1, 2
12. Add Two Numbers
13. Sort List
14. Delete Node Having Greater Value On Right
15. Segregate Even and Odd Nodes
16. Copy List with Random Pointer
17. Remove Nth Node From End of List
18. Reorder List
19. Rearrange List in Zig-Zag Manner
20. Add Two Numbers II
21. Reverse Linked List II
22. Remove Dupliactes From Sorted List II
23. Flatten Multilevel DLL
24. Partition List
25. LL in Zig-Zag Manner
26. Merge k Sorted Lists
27. Flatten List

Stack-and-Queue

1. Queue Using Stack
2. Stack Using Queues
3. Next Greater Element I
4. Backspace String Compare
5. Stack and Queue using Deque
6. Postfix Expression Evaluation
7. Implement Two Stack in an Array
8. Daily Temperatures
9. Minimum Cost Tree From Leaf Values
10. Online Stock Span
11. Rotten Oranges
12. LRU Cache
13. Circular Tour
14. Sum of Subarray Minimums
15. Evaluate Reverse Polish Notation
16. The Celebrity Problem
17. Remove All Adjacent Duplicates In String
18. Flatten Nested List Iterator

Tree

1. Diameter of Binary Tree
2. Invert Binary Tree
3. Subtree of Another Tree
4. Range Sum of BST
5. Symmetric Tree
6. Convert Sorted Array to Binary Search Tree
7. Merge Two Binary Trees
8. Maximum Depth of Binary Tree
9. Binary Tree Paths
10. Same Tree
11. Lowest Common Ancestor of BST
12. Path Sum
13. Minimum Absolute Difference in BST
14. Sum of Left Leaves
15. Balanced Binary Tree
16. Inorder Traversal
17. Predecessor and Successor
18. Binary Search Tree Iterator
19. BST Dead End
20. Unique Binary Search Tree
21. All Nodes Distance K in Binary Tree
22. Validate BST
23. Path Sum III
24. Binary Tree Right Side View
25. Level Order Traversal
26. Preorder BST
27. BT from Pre and Post order
28. Unique Binary Search Tree II
29. Recover BST
30. Count of BST Node in rane
31. Populating Next Right
32. Flatten BT To LL
33. Maximum Width of Binary Tree
34. Kth Smallest Element in BST
35. Median of BST
36. Largest BST
37. BT Zig-zag Level Order Traversal
38. BT from Preorder Traversal

Graph

1. BFS of Graph
2. DFS of Graph
3. Flood Fill
4. Number of Islands
5. Detect Cycle in Undirected Graph
6. Detect Cycle in Directed Graph
7. Rat in Maze Problem I
8. Steps by Knight
9. Decode String
10. Shortest Bridge
11. Number of Operations to make Network Connected
12. Find Eventual Safe States
13. Strongly Connected Components

Dynamic-Programming

1. Climbing Stairs
2. Counting Bits
3. Maximum Product Subarray
4. Ones and Zeroes
5. Knight Dialer
6. Maximize the Cut Segments
7. Unique Paths
8. Minimum Path Sum
9. Coin Change
10. Decode Ways
11. Maximum Length of Repeated Subarray
12. Longest Increasing Subsequence
13. Longest Common Substring
14. Count Square Submatrices with All Ones
15. Maximal Square
16. Mobile numeric keypad
17. Job Sequencing Problem
18. Delete and Earn