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- SPP - Palindrome Family
- SP - Stack Design
- SPP - K<sup>th</sup> largest and smallest
- SPP - The Last Battle
- Minimum and Maximum Sum Pair
- Design Stack
- Design Queue
- Find the Heap height
- Sum Alternate Leaf Nodes
- Dependecies Sum
- The SpecialNacci Number
- Reverse a linked list
- Check for BST
- K distance from root
- Mirror Tree
- Maximum Width of Tree
- Balanced Tree Check
- Kth from End of Linked List
- Middle of a Linked List
- Left View of Binary Tree
- Reverse Level Order Traversal
- DFS of Graph
- BFS of graph
- Identical Trees
- Root to leaf path sum
- BST Keys in a Range
- Binary Tree to BST
- Unique rows in boolean matrix
- Kth largest element in BST
- Sum of leaf nodes in BST
- Maximum Node Level
- Find length of Loop
- Median of BST
- Reverse first K of a Queue
- Sum of Leaf Nodes at Min Level
- Tilt of Binary Tree
- Convert-To-Doubly Linked List
- Check K-th Bit
- Equilibrium Point
- Array Leaders
- Floor in a Sorted Array
- Minimum Number in a sorted rotated array
- Print adjacency list
- Minimum indexed character
- Non Repeating Character
- Parenthesis Checker
- Count number of hops
- First Repeating Element
- Reach a given score
- Product array puzzle
- Missing And Repeating
- Buildings receiving sunlight
- Max value
- Count the elements
- Find Kth Rotation
- Sorted and Rotated Minimum
- Next greater number set digits
- Move All Zeroes to End
- Chocolate Distribution Problem
- Find Pair Given Difference
- Single Number
- Alternate Positive Negative
- Maximum Possible Sum of Products
- Remove Consecutive Characters
- Remove b and ac from a given string
- Rearrange a string
- Nearest multiple of 10
- Greater on right side
- Two Sum - Pair with Given Sum
- Second most repeated string in a sequence
- Check if array contains contiguous integers
- Number of occurrence
- Maximum repeating number
- Divisible by 8
- Modify the Array
- Convert an array to reduced form
- Find missing in second array
- String's Count
- Largest Fibonacci Subsequence
- Even and odd elements at even and odd positions
- Three Great Candidates
- Merge two binary Max heaps
- Chocolate Station
- Smallest greater elements in whole array
- Pair with given sum in a sorted array
- Pattern Searching
- Print Bracket Number
- Is Binary Number Multiple of 3
- Number of 1 Bits
- Find the Highest number
- Check if a Integer is power of 8 or not
- Love For The Twins
- Pairs with Positive Negative values
- Set Bits
- Reverse Bits
- Star elements
- Element that appears once where every element occurs twice
- Reach the Nth point
- Numbers with same first and last digit
- Perfect Numbers
- Optimal walk
- Maximum height of the staircase
- Smallest number with sum of digits as N and divisible by 10^N
- Adjacents are not allowed
- Maximize Toys
- Inorder Traversal and BST
- Largest zigzag sequence
- Print Diagonally
- Longest Even Length Substring
- Sorting Elements of an Array by Frequency
- Rearrange characters
- Nearly Sorted Algorithm
- Last two digits of Fibonacci
- SPP - Meld Game
- Subtree Skip
- BST _Tripling
- Maximize Array Sum
- Merge 2 sorted linked list in reverse order
- Count BST nodes that lie in a given range
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Sum Tree
- Diagonal Tree Traversal
- Delete a node from BST
- Maximum difference between node and its ancestor
- Largest subarray with 0 sum
- Topological sort
- Vertical Tree Traversal
- Find the number of islands
- Gas Station
- Wildcard Pattern Matching
- Check if subtree
- Is Binary Tree Heap
- Dijkstra Algorithm
- Maximum Difference
- Palindrome Linked List
- Number of root to leaf paths
- Closest in BST
- BST with Dead End
- Delete keys in a Linked list
- Count distinct elements in every window
- Sort a stack
- k-th Smallest in BST
- Union of Two Linked Lists
- Euler circuit and Path
- Pair Sum in BST
- Leftmost and rightmost nodes of binary tree
- Mirror of a given node
- Isomorphic Trees
- Maximum path sum from any node
- Children Sum in a Binary Tree
- Diagonal sum in binary tree
- ZigZag Tree Traversal
- Possible Words From Phone Digits
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Indexes of Subarray Sum
- Spirally traversing a matrix
- Unit Area of largest region of 1's
- Subarray with 0 sum
- Longest Consecutive Subsequence
- Postfix Evaluation
- Stock span problem
- Next Greater Element
- K Sized Subarray Maximum
- Kth smallest element
- Activity Selection
- Largest number in K swaps
- Black and White
- Combination Sum
- Unique Subsets
- M-Coloring Problem
- Stickler Thief
- Egg Dropping Puzzle
- Minimum number of jumps
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Number of Unique Paths
- Equal Sum Partition
- Sort according to an Array
- X Total Shapes
- Find whether path exist
- Implement Trie
- Shortest Common Supersequence
- Rotten Oranges
- Container With Most Water
- Print Anagrams Together
- Word Break
- Sort 0s, 1s and 2s
- Pascal Triangle
- Sum of Middle elements of two sorted arrays
- Single Among Doubles in a Sorted
- Pair Sum Closest to 0
- Search in Rotated Sorted Array
- Sum of bit differences
- Print Binary Tree levels in sorted order
- Count Full Binary Trees
- Form the Largest Number
- Subarray Sum Divisible By K
- Maximum Product Subarray
- Sort the given array after applying the given equation
- Row with max 1s
- Column name from a given column number
- Design a tiny URL or URL shortener
- Palindrome SubStrings
- Form a palindrome
- Nuts and Bolts Problem
- Factorials of large numbers
- Smallest distinct window
- Longest substring with distinct characters
- Longest Arithmetic Subsequence
- Rod Cutting
- Longest Palindromic Subsequence
- Largest Sum Subarray of Size at least K
- Longest Common Increasing Subsequence
- First negative in every window of size k
- First and Last Occurrences
- Find largest word in dictionary
- Bleak Numbers
- Collecting Trees
- Max possible amount
- Maximum Tip Calculator
- Max Sum Increasing Subsequence
- Coin Change (Count Ways)
- Mobile numeric keypad
- Modify array to maximize sum of adjacent differences
- Gold Mine Problem
- Coin Change (Minimum Coins)
- Perfect Sum Problem
- Subset with sum divisible by k
- Knapsack with Duplicate Items
- Number of ways
- Maximum path sum in matrix
- Special Keyboard
- Longest Bitonic subsequence
- Probability of Knight
- Array Pair Sum Divisibility Problem
- Permutation with Spaces
- Sum of Query II
- Find Prime numbers in a range
- Prime Factors and their Powers
- Jumping Numbers
- Grouping Of Numbers
- Next Permutation
- Decode the string
- Preorder Traversal and BST
- Total Decoding Messages
- Stream First Non-repeating
- Possible paths
- Largest square formed in a matrix
- Kth Largest in a Stream
- Snake and Ladder Problem
- Eulerian Path in an Undirected Graph
- Replace O's with X's
- Count the paths
- Floyd Warshall
- Negative weight cycle
- Flood fill Algorithm
- Shortest Source to Destination Path
- IPL 2021 - Match Day 2
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