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jainsahil1997
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BASIC (22)
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HARD (7)
- Longest Even Length Substring
- Sorting Elements of an Array by Frequency
- Add Number Linked Lists
- Detect Loop in linked list
- Count BST nodes that lie in a given range
- Check for BST
- Binary Tree from Inorder and Postorder
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Merge two sorted linked lists
- Add all greater values to every node in a BST
- Sum Tree
- Tree Boundary Traversal
- Implement stack using array
- LCA in Binary Tree
- Lowest Common Ancestor in a BST
- Vertical Tree Traversal
- Max sum in the configuration
- Gas Station
- Is Binary Tree Heap
- Remove loop in Linked List
- Find Common Nodes in two BSTs
- Level order traversal
- Delete nodes greater than k
- Ancestors in Binary Tree
- Root to Leaf Paths
- Predecessor and Successor
- Count set bits
- Smallest Positive Missing
- Wave Array
- Rearrange an array with O(1) extra space
- Kadane's Algorithm
- Majority Element
- Unique BST's
- Indexes of Subarray Sum
- Count the number of possible triangles
- Triplet Sum in Array
- Rotate by 90 degree
- Next Greater Element
- K Sized Subarray Maximum
- Kth smallest element
- Job Sequencing Problem
- Minimum Platforms
- Longest Increasing Subsequence
- Longest Common Subsequence
- Equal Sum Partition
- Sort according to an Array
- X Total Shapes
- Print Anagrams Together
- Overlapping Intervals
- Maximum Index
- Top k numbers in a stream
- Count Occurences of Anagrams
- Search in Rotated Sorted Array
- Max Score from Subarray Mins
- Form the Largest Number
- Max Sum without Adjacents
- Length of the longest substring
- k largest elements
- Arranging the array
- Fill array with 1's
- Valid Substring
- Permutations of a String
- Subarrays Product Less than K
- Angle between hour and minute hand
- Ways To Tile A Floor
- Number of paths
- Number of paths in a matrix with k coins
- Jumping Numbers
- Game with String
- Fraction to Repeating Decimal
- Next Permutation
- Smaller on Left
- Stream First Non-repeating
- Array to BST
- Reverse a linked list
- Remove duplicates from an unsorted linked list
- Split a Linked List into two halves
- Inorder Traversal
- Reverse a Doubly Linked List
- Selection Sort
- K distance from root
- Mirror Tree
- Two Mirror Trees
- 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
- Transform to Sum Tree
- Remove Duplicates from a Sorted Linked List
- Postorder Traversal
- Reverse Level Order Traversal
- Stack using Linked List
- Insert a node in a BST
- Identical Trees
- Root to leaf path sum
- Nodes without a Sibling
- Level Order Line by Line
- BST Keys in a Range
- Minimum Depth of a Binary Tree
- Binary Tree to BST
- Search a node in BST
- Inorder Successor in BST
- Insert in a Sorted List
- Minimum element in BST
- First Set Bit
- Check K-th Bit
- Reverse Words
- Parenthesis Checker
- K largest elements
- N meetings in one room
- Missing in Array
- Product array puzzle
- Pairs of equals Sum
- Count the elements
- Find Kth Rotation
- String Duplicates Removal
- String Manipulation
- Find Duplicate Element
- Alternate Positive Negative
- Remove Duplicates
- Two Sum - Pair with Given Sum
- Find the left over element
- Does array represent Heap
- Convert an array to reduced form
- Element with left side smaller and right side greater
- Four Elements
- Pattern Searching
- Last Match
- Lucky Number
- Element that appears once where every element occurs twice
- Prime Number
- Magic Number
- Number of Groups
- Page Faults in LRU
- Inorder Traversal and BST
- Overlapping rectangles
- Sum of k smallest elements in BST
- Rotate Array
- Size of Binary Tree
- Count Leaves in Binary Tree
- Replace all 0's with 5
- Preorder Traversal
- Circular Linked List Traversal
- Bit Difference
- Binary String
- Keypad typing
- Maximum product of two numbers
- Value equal to index value
- Reverse sub array
- Uncommon characters
- Replace the Bit
- One odd Occuring
- Minimize string value
- Check set bits
- House Robber
- Count zero
- Find difference between sum of diagonals
- Half N by M
- Minimum difference pair