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BASIC (19)
EASY (53)
MEDIUM (64)
HARD (8)
Rotate a Linked List
Detect Loop in linked list
Bottom View of Binary Tree
Intersection in Y Shaped Lists
Diameter of a Binary Tree
Merge two sorted linked lists
Sum Tree
Tree Boundary Traversal
Undirected Graph Cycle
The Celebrity Problem
Largest subarray with 0 sum
Minimum Swaps to Sort
k-th Smallest in BST
Level order traversal
Kadane's Algorithm
Majority Element
Count Inversions
Indexes of Subarray Sum
Spirally traversing a matrix
Subarray with 0 sum
Infix to Postfix
K Sized Subarray Maximum
Minimum Platforms
Minimum Jumps
Stickler Thief
Longest Increasing Subsequence
Longest Common Subsequence
0 - 1 Knapsack Problem
Allocate Minimum Pages
Steps by Knight
Maximize The Cut Segments
Print Anagrams Together
Sort 0s, 1s and 2s
Maximum Index
Search in Rotated Sorted Array
Max Score from Subarray Mins
Maximum Product Subarray
Row with max 1s
Factorials of large numbers
Longest Common Substring
K-th element of two Arrays
LCS of three strings
First and Last Occurrences
Permutations of a String
Friends Pairing Problem
Subarrays Product Less than K
Bleak Numbers
Max Sum Increasing Subsequence
Coin Change (Count Ways)
Perfect Sum Problem
nCr
Partition Equal Subset Sum
Subset Sums
Card Rotation
Next Permutation
Total Decoding Messages
Shortest Source to Destination Path
Geek and His Pairs
Make it One
Subset Sum Problem
Connect Nodes at Same Level
Minimize number of Students to be removed
Cities and Teleporters
Reverse a Stack
Binary Tree to DLL
String Permutations
Merge Without Extra Space
Ugly Numbers
Minimum sum partition
Palindromic Partitioning
Matrix Chain Multiplication
Median in a row-wise sorted Matrix
Reverse a linked list
Frequency in a Linked List
Pairwise swap elements of a linked list
Remove duplicates from an unsorted linked list
Delete in a Doubly Linked List
Reverse a Doubly Linked List
Right View of Binary Tree
Height of Binary Tree
Balanced Tree Check
Kth from End of Linked List
Middle of a Linked List
Left View of Binary Tree
Queue using two Stacks
Remove Duplicates from a Sorted Linked List
Reverse Level Order Traversal
DFS of Graph
BFS of graph
Square Root
Insertion at doubly linked list
Binary Search
Run Length Encoding
Leaves at Same Level or Not
Minimum distance in an Array
First Set Bit
Rightmost different bit
Check K-th Bit
Power of 2
Array Leaders
Floor in a Sorted Array
Parenthesis Checker
N meetings in one room
Power Set Using Recursion
Count number of hops
Union of Arrays with Duplicates
Missing in Array
Product array puzzle
Missing And Repeating
Common in 3 Sorted Arrays
Min Subsets with Consecutive Numbers
Find Pair Given Difference
Number of occurrence
Two sum -Pairs with 0 Sum
Palindrome String
Minimum Operations
Number of 1 Bits
Palindrome
Minimum number of Coins
Overlapping rectangles
Construction of a string
Silver and Gold
Count the Substrings
Fair string
Police Station
Find Length of Linked List
Count Leaves in Binary Tree
Postorder Traversal
Linked List Insertion At End
Bit Difference
Print 1 To N Without Loop
Sorted Array Search
Sum of Digits of a Number
Fibonacci Using Recursion
First n Fibonacci
Find second largest element
Value equal to index value
Rotate Array by One
Set kth bit
Binary number to decimal number
Count Squares
Find the position of M-th item
Middle of Three
Sorted matrix
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