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BASIC (1)
EASY (58)
MEDIUM (96)
HARD (25)
Intersection in Y Shaped Lists
Diameter of a Binary Tree
Flattening a Linked List
Tree Boundary Traversal
Lowest Common Ancestor in a BST
The Celebrity Problem
Merge K sorted linked lists
Generate IP Addresses
Sorted subsequence of size 3
Palindrome Linked List
k-th Smallest in BST
Level order traversal
Pair Sum in BST
K Sum Paths
Construct Tree from Inorder & Preorder
Maximum path sum
Smallest Positive Missing
Wave Array
Possible Words From Phone Digits
Count Inversions
Union of 2 Sorted Arrays
Indexes of Subarray Sum
Count the number of possible triangles
Merge Without Extra Space
Make Matrix Beautiful
Boolean Matrix
Spirally traversing a matrix
Rotate by 90 degree
Longest Consecutive Subsequence
Strings Rotations of Each Other
Postfix Evaluation
Stock span problem
Next Greater Element
K Sized Subarray Maximum
Nearly sorted
Minimum Jumps
Ways to Reach the n'th Stair
Longest Increasing Subsequence
Longest Common Subsequence
Print Anagrams Together
Top K Frequent in Array
Pythagorean Triplet
Search in Rotated Sorted Array
Longest subarray with sum divisible by K
Longest Subarray with Sum K
k largest elements
K-th element of two Arrays
Missing element of AP
Minimum sum
Permutations of a String
CamelCase Pattern Matching
Get Minimum Squares
Decode the string
Subarrays with sum K
Rearrange characters
Majority Element - More Than n/3
Koko Eating Bananas
Minimal Cost
Combination Sum II
Minimum days to make M bouquets
Non-overlapping Intervals
Insert Interval
Longest String Chain
Make array elements unique
Next Greater Element in Circular Array
Minimum repeat to make substring
Kth Missing Positive Number in a Sorted Array
Count Subarrays with given XOR
Maximum score from at most K jumps
4 Sum – Count quadruplets with given sum
Find pair with sum target in an absolute sorted array
Coin Selection
Pick Apples
Count Valid Pairs
Minimum Time to Burst Balloons
Group Shifted String
Bulls and Cows
Good Rectangles
Count Pairs
Mana Mastery
The Flash Sale Strategy
Solve the Expression
Count all triplets with given sum in sorted array
Implement Pow
Smallest Subsequences
Max OR Min Length
K Closest Points to Origin
Who Were Online?
Longest Palindromic Array
Wooden Plank
String stack
Supermarket
Pick the Chocolate
Pick the Chocolate
Delivery Team
Get Max from Stack
Serialize and deserialize a binary tree
Fixing Two nodes of a BST
Histogram Max Rectangular Area
Max of min for every window size
Palindromic Partitioning
Median in a row-wise sorted Matrix
Longest valid Parentheses
N-Queen Problem
Corona Vaccine
Distribute Candies
Min Chars to Add for Palindrome
Largest rectangular sub-matrix whose sum is 0
LFU cache
Sum of Max of Subarrays
Minimum k for Valid XOR Combinations
Geek's AND Game
Santa's Christmas Journey
Min-Max Product Graph
Maximum Operations
Good Prefix
Meeting Rooms III
Longest Colored Path
Subtree Sum Queries
Count Prime Subsequences
Longest Bit-Increasing Subsequence
Inorder Traversal
Mirror Tree
Height of Binary Tree
Balanced Tree Check
Largest subarray of 0's and 1's
Remove Duplicates Sorted Array
Equilibrium index of an array
Symmetric Tree
Equilibrium Point
Intersection of two sorted arrays
Non Repeating Character
Count number of hops
Product array puzzle
Intersection of Arrays with Distinct
Buildings receiving sunlight
Find the closest number
Sorted and Rotated Minimum
Move all negative elements to end
Chocolate Distribution Problem
Bitonic Point
Sort Array II
Palindrome Sentence
Two Sum - Pair with Given Sum
Longest Common Prefix of Strings
Largest Fibonacci Subsequence
Element with left side smaller and right side greater
Minimum Operations
Nth Fibonacci Number
Largest odd number in string
Taxi Booking
All triplets with given sum
Find Only Repetitive Element from 1 to n-1
Generate a matrix with each row and column of given sum
Equal Chocolate Split
Max x
George's Jumping Game
Charul and vessels
New Year Resolution
The Calendar Puzzle
Celsius to Fahreinheit
Calculate the Discounted Price
Maximum Sales Figure
Updating sales data in a DataFrame
Filter Customers
Forming a Coin Pyramid
Print Array [NumPy]
Retrieve From a Matrix
Slice Array [NumPy]
Byte Size of an Item
Fill with Zero [NumPy]
Transpose Array [NumPy]
The Mirror Code
Can Transform ?
Dominant Digit
Weak Subarrays
Minimize the Purchase
Good Array
Minimum Steps to Target Coordinate
Print Linked List
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