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SCHOOL (1)
BASIC (4)
EASY (45)
MEDIUM (58)
HARD (10)
Reverse alternate nodes in Link List
Rotate a Linked List
Add 1 to a Linked List Number
Wildcard Pattern Matching
Sorted subsequence of size 3
Multiply two strings
Duplicate Subtree
Find Common Nodes in two BSTs
Leftmost and rightmost nodes of binary tree
Isomorphic Trees
Normal BST to Balanced BST
Mother Vertex
Smallest Positive Missing
Kadane's Algorithm
Indexes of Subarray Sum
Make Matrix Beautiful
Boolean Matrix
Sort Elements by Decreasing Frequency
K Sized Subarray Maximum
Job Sequencing Problem
Minimum Jumps
Stickler Thief
0 - 1 Knapsack Problem
Lucky Numbers
Kth Smallest
Nth Catalan Number
Maximize The Cut Segments
4 Sum - All Quadruples
Sort 0s, 1s and 2s
Sum of Subarrays
Sum of Middle elements of two sorted arrays
Column name from a given column number
Substrings with K Distinct
Cutting Binary String
Longest Common Substring
Longest Substring with K Uniques
Minimize the Heights II
First and Last Occurrences
Nine Divisors
Perfect Sum Problem
Count ways to N'th Stair(Order does not matter)
Partition Equal Subset Sum
Nth Natural Number
LCM Triplet
Transitive closure of a Graph
Replace O's with X's
Subarrays with sum K
Minimum Multiplications to reach End
Number Of Enclaves
Eventual Safe States
Majority Element - More Than n/3
Maximum Sum Combination
Floor in BST
Powerful Integer
Minimum Distance Graph
Plucking Flowers
Set Matrix Zeros
Count Numbers Containing Specific Digits
Pairwise swap elements of a linked list
Delete nodes having greater value on right
Mirror Tree
Balanced Tree Check
Middle of a Linked List
Left View of Binary Tree
Remove Duplicates from a Sorted Linked List
Insert a node in a BST
Square Root
Binary Tree to BST
Delete in a Singly Linked List
Kth largest element in BST
Array Duplicates
Insert in a Sorted List
Find length of Loop
Leaf under budget
First Set Bit
Power of 2
Wave Array
Equilibrium Point
Array Leaders
Print adjacency list
Matrix Boundary Traversal
Reverse Words
Parenthesis Checker
Minimum Cost of ropes
Count number of hops
Product array puzzle
Roman Number to Integer
Missing And Repeating
Alternate Positive Negative
Facing the sun
Rotate Bits
Number of occurrence
Find the closest pair from two arrays
Palindrome String
Sum 1 to n Divisors
Perfect Numbers
Largest number possible
Form a number divisible by 3 using array digits
Surround the 1's
Silver and Gold
Mean BST
Even Sum
High Frequency
Binary Tree to DLL
Alien Dictionary
AVL Tree Deletion
Nodes at given distance in binary tree
Max Circular Subarray Sum
Burning Tree
Next Smallest Palindrome
Longest Prefix Suffix
Circle of strings
Making A Large Island
Most Frequent Character
Reverse a String
First n Fibonacci
Max Min
Arrays (Sum of array)
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