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SCHOOL (2)
BASIC (22)
EASY (61)
MEDIUM (57)
HARD (8)
- Reverse alternate nodes in Link List
- Rotate a Linked List
- Sort a linked list of 0s, 1s and 2s
- Rearrange a linked list
- Add 1 to a Linked List Number
- Merge 2 sorted linked list in reverse order
- Linked List in Zig-Zag fashion
- Detect Loop in linked list
- Rearrange linked list in-place
- Quick Sort on Linked List
- QuickSort on Doubly Linked List
- Delete without head pointer
- Intersection in Y Shaped Lists
- Merge two sorted linked lists
- Flattening a Linked List
- Absolute List Sorting
- Lowest Common Ancestor in a BST
- Remove loop in Linked List
- Palindrome Linked List
- Sort a stack
- Peak element
- Union of Two Linked Lists
- XOR Linked List
- Deletion in Circular Linked List
- Normal BST to Balanced BST
- Swap Kth nodes from ends
- Add two numbers represented by Linked List
- Wave Array
- Kadane's Algorithm
- Majority Element
- Indexes of Subarray Sum
- Triplet Sum in Array
- Boolean Matrix
- Spirally traversing a matrix
- Subarray with 0 sum
- Longest Consecutive Subsequence
- Minimum Jumps
- Longest Increasing Subsequence
- Lucky Numbers
- Number of Unique Paths
- Zero Sum Subarrays
- Kth Smallest
- Print Anagrams Together
- Rotate by 90 degree
- Overlapping Intervals
- Sort 0s, 1s and 2s
- Search in Rotated Sorted Array
- Nuts and Bolts Problem
- Factorials of large numbers
- Longest Common Substring
- Not a subset sum
- First and Last Occurrences
- Permutations of a String
- Number of paths
- Next Permutation
- Segregate even and odd nodes in a Linked List
- Subarrays with sum K
- Geek-onacci Number
- Reverse a linked list
- Frequency in a Linked List
- Delete N nodes after M nodes of a linked list
- Linked list of strings forms a palindrome
- Compare two linked lists
- Remove duplicates from an unsorted linked list
- Split a Linked List into two halves
- Reverse a Doubly Linked List
- Kth from End of Linked List
- Middle of a Linked List
- Check If Circular Linked List
- Delete Middle of Linked List
- Transform to Sum Tree
- Find Transition Point
- Remove Duplicates from a Sorted Linked List
- Square Root
- Binary Search
- Remove Duplicates Sorted Array
- Max distance between same elements
- Insert in a Sorted List
- Minimum element in BST
- Sum of leaf nodes in BST
- Delete Alternate Nodes
- Find the Sum of Last N nodes of the Linked List
- Count Pairs whose sum is equal to X
- Linked List Matrix
- Reverse first K of a Queue
- Delete Mid of a Stack
- Rotate doubly Linked List
- Start Coding - Java
- The New Line - Java
- Learning Structs
- Delete Array
- Check K-th Bit
- Digits In Factorial
- Reverse Words
- Non Repeating Character
- Parenthesis Checker
- Minimum indexed character
- Union of Arrays with Duplicates
- Missing in Array
- Missing And Repeating
- Common in 3 Sorted Arrays
- Search in a Row-Column sorted matrix
- Chocolate Distribution Problem
- Find Pair Given Difference
- Bitonic Point
- Remove Duplicates
- Twice Counter
- Two sum -Pairs with 0 Sum
- Count the Zeros
- First and Second Smallests
- Palindrome String
- Is Binary Number Multiple of 3
- Number of 1 Bits
- Find the Highest number
- Form a number divisible by 3 using array digits
- Inorder Traversal and BST
- Print Pattern
- Sum of two numbers without using arithmetic operators
- Rotate Array
- Find Length of Linked List
- Equal Sum and XOR
- Is Linked List Length Even?
- Identical Linked Lists
- Sum of Binary Tree
- Array Search
- Reverse a String
- Multiply Array
- Convert a list of characters into a String
- Count of camel case characters
- Find element at a given Index
- Rotate Array by One
- Split Strings
- Array Subset
- Pattern of Strings
- Median of an Array
- Count Squares
- Middle of Three
- Swap two numbers
- Finding Position
- Sorted matrix