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BASIC (10)
EASY (75)
MEDIUM (50)
HARD (3)
Remove duplicates from an unsorted linked list
Reverse a Doubly Linked List
Right View of Binary Tree
Maximum Width of Tree
Height of Binary Tree
Balanced Tree Check
Kth from End of Linked List
Left View of Binary Tree
Find Transition Point
Level Order in spiral form
DFS of Graph
BFS of graph
Identical Trees
Binary Search
Third largest element
Delete in a Singly Linked List
Array Duplicates
Inorder Successor in BST
Median of BST
Queue Reversal
Reverse first K of a Queue
Delete Mid of a Stack
Predict the Column
Max and Second Max
First Set Bit
Rightmost different bit
Check K-th Bit
Power of 2
Frequencies in a Limited Array
Equilibrium Point
Array Leaders
Sum of upper and lower triangles
Transpose of Matrix
String Rotated by 2 Places
Isomorphic Strings
Non Repeating Character
Roman Number to Integer
Move All Zeroes to End
Chocolate Distribution Problem
Number of occurrence
Two sum -Pairs with 0 Sum
Find the closest pair from two arrays
Minimum Operations
Nth Fibonacci Number
Shortest path from 1 to n
Perfect Numbers
Largest number possible
Array to BST
Maximum Frequency
Minimum Length
Unique Number of Occurrences
Separate Stone
Balloon Everywhere
Maximum Number
Two Swaps
Beautiful Number
Strong Students in School
Complete the Staircase
String Matching
Array Game
Silver and Gold
Mean BST
Lead Engineer
Even Sum
High Frequency
Weird Island
Same characters
Squares
Find Bots on Geeklandster
Negative Prefix
Maximum occurring digit
Dominating Geek
Candy shop I
Minimum Distance
Count Indices
Sort a linked list of 0s, 1s and 2s
Detect Loop in linked list
Bottom View of Binary Tree
Diameter of a Binary Tree
Heap Sort
Diagonal Tree Traversal
LCA in Binary Tree
Two Stacks in an Array
Largest subarray with 0 sum
Topological sort
Find kth element of spiral matrix
Dijkstra Algorithm
Find triplets with zero sum
Top View of Binary Tree
Find Common Nodes in two BSTs
Level order traversal
Kth Ancestor in a Tree
Tower Of Hanoi
Smallest Positive Missing
Power Of Numbers
Wave Array
Stickler Thief
Allocate Minimum Pages
Shortest Common Supersequence
Top K Frequent in Array
Pythagorean Triplet
Column name from a given column number
Longest Subarray with Sum K
Longest Palindromic Subsequence
First and Last Occurrences
Unique Number II
Bleak Numbers
How Many X's?
Longest Repeating Subsequence
Stream First Non-repeating
Shortest Source to Destination Path
Iterative Inorder
Preorder traversal (Iterative)
Subarrays with sum K
Searching an element in a sorted array (Ternary Search)
Subsets
Unique Number III
Reverse a Stack
Aggressive Cows
Maximum Sum Combination
Remove the balls
Fraction pairs with sum 1
Find the longest string
Total pairs
Empty the String
Count Leaves in Binary Tree
Queue Using Array
Replace all 0's with 5
Reverse a String
First n Fibonacci
Binary Array Sorting
Check for subsequence
Max Min
Naughty Geek
Geekland Elections
Linked List Group Reverse
String Permutations
Count the number of subarrays
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