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SCHOOL (2)
BASIC (5)
EASY (25)
MEDIUM (39)
HARD (5)
- Longest Even Length Substring
- Nearly Sorted Algorithm
- Add Number Linked Lists
- Add 1 to a Linked List Number
- Detect Loop in linked list
- Intersection in Y Shaped Lists
- Sum Tree
- Reverse alternate levels of a perfect binary tree
- Get Min from Stack
- Remove loop in Linked List
- Merge k Sorted Arrays
- Sort a stack
- Duplicate Subtree
- Merge Sort for Linked List
- Occurences of 2 as a digit
- Sum of nodes on the longest path
- ZigZag Tree Traversal
- Rearrange an array with O(1) extra space
- Kadane's Algorithm
- Majority Element
- Spirally traversing a matrix
- Subarray with 0 sum
- Longest Consecutive Subsequence
- Case-specific Sorting of Strings
- Postfix Evaluation
- Stickler Thief
- Kth Smallest
- Container With Most Water
- Sort 0s, 1s and 2s
- Row with max 1s
- Nuts and Bolts Problem
- Factorials of large numbers
- Longest Palindrome in a String
- K-th element of two Arrays
- First and Last Occurrences
- Permutations of a String
- Next Permutation
- Smaller on Left
- Search Pattern (Rabin-Karp Algorithm)
- Remove duplicates from an unsorted linked list
- Right View of Binary Tree
- Delete without head pointer
- Height of Binary Tree
- Left View of Binary Tree
- Transform to Sum Tree
- Queue using two Stacks
- Remove Duplicates from a Sorted Linked List
- Stack using two queues
- Leaves at Same Level or Not
- Special Stack
- Level order traversal
- Reverse Using Stack
- Reverse first K of a Queue
- Get min at pop
- Parenthesis Checker
- Union of Arrays with Duplicates
- Product array puzzle
- Missing And Repeating
- Common in 3 Sorted Arrays
- Find Pair Given Difference
- Convert a sentence into its equivalent mobile numeric keypad sequence
- Remove Duplicates
- Count the Zeros
- Palindrome String
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