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SCHOOL (1)
BASIC (39)
EASY (116)
MEDIUM (63)
HARD (3)
Nearest Perfect Square
Reverse a linked list
Frequency in a Linked List
Node at a given index in linked list
Remove duplicates from an unsorted linked list
Delete in a Doubly Linked List
Inorder Traversal
Bubble Sort
Insertion Sort
Mirror Tree
Maximum Width of Tree
Height of Binary Tree
Balanced Tree Check
Kth from End of Linked List
Middle of a Linked List
Left View of Binary Tree
Find Transition Point
Queue using two Stacks
Remove Duplicates from a Sorted Linked List
Level Order in spiral form
DFS of Graph
Stack using Linked List
Insert a node in a BST
BFS of graph
Identical Trees
Square Root
Insertion at doubly linked list
Lowest Common Ancestor in a BST
Remove Duplicates Sorted Array
Level Order Line by Line
BST Keys in a Range
Third largest element
Josephus problem
Three way partitioning
Level order traversal
More than n/k Occurrences
Delete Alternate Nodes
Find length of Loop
Queue Reversal
Reverse first K of a Queue
Delete Mid of a Stack
Start Coding - Java
The New Line - Java
Data Types - Java
Taking input - Java
Sum of Big Integers
BigInteger Multiply
BigInteger mod
Get min at pop
Max and Second Max
Hashing for pair - 1
Hashing for pair - 2
Inorder traversal of a BST
Levelorder traversal of a BST
First Set Bit
Rightmost different bit
Check K-th Bit
Factorial Of Number
Digits In Factorial
GP Term
Primality Test
Longest Consecutive 1's
Exactly 3 Divisors
Mean And Median of Array
Modular Inverse
Power of 2
Swap odd and even bits
Minimum adjacent difference in a circular array
Frequencies in a Limited Array
Equilibrium Point
Array Leaders
Count 1's in binary array
Floor in a Sorted Array
Minimum Number in a sorted rotated array
Roof Top
Intersection of two sorted arrays
Sum of upper and lower triangles
Print Matrix in snake Pattern
Transpose of Matrix
Interchanging the rows of a Matrix
Reversing the columns of a Matrix
Matrix Boundary Traversal
Exchange matrix columns
Separate chaining in Hashing
Naive Pattern Search
Linear Probing in Hashing
Quadratic Probing in Hashing
Check if a string is Isogram or not
Count Non-Repeated Elements
Print Non-Repeated Elements
Anagram
Winner of an election
String Rotated by 2 Places
Strings Rotations of Each Other
Isomorphic Strings
Most Frequent Character
Reverse Words
Panagram Checking
Repeating Character
Non Repeating Character
Removing consecutive duplicates
Removing consecutive duplicates - 2
Parenthesis Checker
Generate Binary Numbers
K largest elements
N meetings in one room
Count Digits in a Number
Digital Root
Power Set Using Recursion
First Repeating Element
Union of Arrays with Duplicates
Check Equal Arrays
Numbers containing 1, 2 and 3
Positive Negative Pair
Intersection of Arrays with Distinct
Max Sum Subarray of size K
The Conversion To One
Get the Shadow
Detect Loop in linked list
Quick Sort
Bottom View of Binary Tree
Delete without head pointer
Heap Sort
Merge two sorted linked lists
Delete a node from BST
LCA in Binary Tree
Two Stacks in an Array
Binary Heap Operations
Topological sort
Remove loop in Linked List
Find triplets with zero sum
Find Common Nodes in two BSTs
Peak element
Children Sum in a Binary Tree
Count set bits
Gray to Binary Conversion
Maximum AND Value
Tower Of Hanoi
Reverse array in groups
Smallest Positive Missing
Power Of Numbers
Maximum occured integer
Wave Array
Possible Words From Phone Digits
Rearrange Array Alternately
Rearrange an array with O(1) extra space
Maximum Index
Stock buy and sell
Rotate Array
Majority Element
Binary Array Sorting
Count Inversions
Two Repeated Elements
Union of 2 Sorted Arrays
Indexes of Subarray Sum
Count the number of possible triangles
Boolean Matrix
Spirally traversing a matrix
Search in a sorted Matrix
Rotate by 90 degree
Subarray with 0 sum
Subarray range with given sum
Postfix Evaluation
Infix to Postfix
K Sized Subarray Maximum
Kth largest element
Kth smallest element
Nearly sorted
Fractional Knapsack
Job Sequencing Problem
Minimum Platforms
Lucky Numbers
Zero Sum Subarrays
Kth Smallest
Count only Repeated
Maximum Water Between Two Buildings
Sort 0s, 1s and 2s
K-th element of two Arrays
Reverse Spiral Form of Matrix
Reverse an Array
Find Length of Linked List
Postorder Traversal
Implement stack using array
Queue using Linked List
Queue Using Array
Replace all 0's with 5
Preorder Traversal
First Occurence
Search a node in BST
Linked List Insertion At End
Minimum element in BST
Identical Linked Lists
Insert in Middle of Linked List
Who has the majority?
Strongest Neighbour
Array insert at index
Array insert at end
Operations on Stack
Operations on Queue
Absolute Value
Convert Celsius To Fahrenheit
Quadratic Equation Roots
Bit Difference
Number is sparse or not
Binary To Gray Code Conversion
Print 1 To N Without Loop
Array Search
Sorted Array Search
Left Index
Adding two matrices
Multiply the matrices
Binary String
Sum of Digits of a Number
Power Using Recursion
Fibonacci Using Recursion
Addition Under Modulo
Multiplication Under Modulo
Keypad typing
Upper Case Conversion
Trapping Rain Water
Pattern Search
Median of Two sorted arrays
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