- Print Linked List elements
- Node at a given index in linked list
- Delete node in Doubly Linked List
- Height of Binary Tree
- Finding middle element in a linked list
- Postorder Traversal
- Implement Stack using Linked List
- Implement stack using array
- Implement Queue using Linked List
- Square root
- Doubly linked list Insertion
- Binary Search
- Remove duplicate elements from sorted Array
- Largest product
- Third largest element
- Preorder Traversal
- C++ STL | Set 7 (unordered map)
- 2's Complement
- Rotate Array
- Permutations of a given string
- Missing number in array
- Array of alternate +ve and -ve no.s
- Bit Difference
- Reverse sub array
- Greater on right side
- Sum of distinct elements
- Intersection of two arrays
- Convert array into Zig-Zag fashion
- Remove character
- Check if a number is power of another number
- Remove recurring digits
- Evaluate the x + a = b statement
- Ways To Tile A Floor
- Middle of Three
- Generate Binary Numbers
- Find the Odd Occurence
- Keypad typing
- Even occurring elements
- Total count
- Surpasser Count
- Matching Pair
- Sum of primes
- Reverse array in groups
- Good String
- Longest Consecutive 1's
- Max-Min conversion
- Nth Even Fibonacci Number
- Pairs with given XOR
- Padovan Sequence
- No of Carry Operations
- Unusual String Sort
- Missing number
- String Reversal
- Reverse each word in a given string
- Find first and last occurrence of x
- Type of array
- Sort in specific order
- Check if divisible by 4
- Long Long Decimal
- Count rotations divisible by 4
- Check if divisible by 36
- Tidy Number
- Strong Numbers
- Does array represent Heap
- Missing number in shuffled array

Name

Shubham Joshi

Institute

home

Courses Attended

Overall Coding Score: 628

Monthly Coding Score: 0

Weekly Coding Score: 0

- Reverse a linked list
- Pairwise swap elements of a linked list
- Given a linked list of 0s, 1s and 2s, sort it.
- Add two numbers represented by linked lists
- Linked List in Zig-Zag fashion
- Detect Loop in linked list
- Rearrange linked list in-place
- Remove duplicates from an unsorted linked list
- Split a Circular Linked List into two halves
- Quick Sort
- K distance from root
- Two Mirror Trees
- Maximum Width of Tree
- Check for Balanced Tree
- Left View of Binary Tree
- Delete Middle of Linked List
- Merge two sorted linked lists
- Sum Tree
- Decimal Equivalent of Binary Linked List
- Transform to Sum Tree
- Intersection of two sorted Linked lists
- Queue using two Stacks
- Stack using two queues
- Level order traversal in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- Reverse alternate levels of a perfect binary tree
- Insert a node in a BST
- BFS of graph
- Determine if Two Trees are Identical
- Root to leaf path sum
- Print all nodes that don't have sibling
- Postorder traversal from given Inorder and Preorder traversals
- Absolute List Sorting
- Lowest Common Ancestor in a BST
- Binary Heap Operations
- Max sum path in two arrays
- Run Length Encoding
- Largest subarray of 0's and 1's
- Print BST elements in given range
- Largest subarray with 0 sum
- Minimum Depth of a Binary Tree
- Odd even level difference
- Binary Tree to BST
- K-Palindrome
- Equilibrium index of an array
- Leaf at same level
- Is Binary Tree Heap
- Validate an IP Address
- Find Maximum value
- Multiply two linked lists
- Sum of subset differences
- Points in Straight Line
- Maximum Difference
- Check if Linked List is Palindrome
- Print Common Nodes in BST
- Level order traversal
- Inorder Successor in BST
- Wave Array
- Search in a Rotated Array
- Squares in N*N Chessboard
- Subarray with least average
- Magic Number
- Maximize Number of 1's
- Non Repeating Character
- Count Occurences of Anagrams
- Count Substrings
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Two numbers with sum closest to zero
- Next greater number set digits
- Finding Position
- Next sparse binary number
- Does robot moves circular
- Longest Distinct characters in string
- Replace by X
- Column name from a given column number
- Remove minimum elements
- Kth distance
- Array to BST
- Max Sum without Adjacents
- Maximum Difference
- Subarray with given sum
- Pair in array whose sum is closest to X
- Swap all odd and even bits
- Count number of hops
- Equal to product
- Triplet Sum in Array
- Comment Removal
- Two Repeated Elements
- Reach a given score
- Overlapping rectangles
- Chinky and diamonds
- Largest number possible
- Factorial Pairs
- Distinct absolute array elements
- 0 - 1 Knapsack Problem
- Good Numbers
- Pangram Strings
- The Prime Twins
- Count the Reversals
- Special array reversal
- Number of Heads
- Permutations and Sum
- Class Average
- Final Destination
- Ball coloring
- Raju and coins
- Squares and divisibility
- Floor in a Sorted Array
- RegEx matching
- Maximize Dot Product
- Max value
- Minimum Energy
- Prime Factors
- Time Difference
- Modified Fibonacci
- Deficient Number
- Dr. Strange's powers
- Find (a^b)%m
- Sum of elements between k1'th and k2'th smallest elements
- Move all negative elements to end
- String Manipulation
- Help Nobita
- Coverage of all Zeros in a Binary Matrix
- Make it Colorful
- Longest K unique characters substring
- Maximum no of 1's row
- Decode the string
- Max sum in sub-arrays
- Next Greater Even Number
- Gold Mine Problem
- Smallest subarray with sum greater than x
- Recaman’s sequence
- Equal point in a string of brackets
- Numbers with same first and last digit
- Check if palindromic ignoring spaces
- Maximum difference Indexes
- Fill array with 1's

- Delete nodes having greater value on right
- Quick Sort on Linked List
- Check for BST
- Bottom View of Binary Tree
- Intersection Point in Y Shapped Linked Lists
- Add all greater values to every node in a BST
- Connect Nodes at Same Level
- Clone a linked list with next and random pointer
- Flattening a Linked List
- Diagonal Traversal of Binary Tree
- Boundary Traversal of binary tree
- Detect cycle in a directed graph
- Min distance between two given nodes of a Binary Tree
- Maximum difference between node and its ancestor
- Range Minimum Query
- Topological sort
- Merge K sorted linked lists
- Find the number of islands
- Get minimum element from stack
- Circular tour
- Wildcard Pattern Matching
- Max rectangle
- Generate IP Addresses
- Check if subtree
- Extreme nodes in alternate order
- Clone a Binary Tree
- Remove loop in Linked List
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- Largest BST
- Interleaved Strings
- Sum of permutations
- LRU Cache
- Multiply two strings
- Minimum Swaps to Sort
- Count of distinct substrings
- Rat in a Maze Problem
- Find the Closest Element in BST
- Duplicate subtree in Binary Tree
- Top View of Binary Tree
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Excel Sheet | Part - 1
- Overlapping Intervals
- Equal Sum
- Next Permutation
- Longest Increasing Subsequence
- Longest Common Subsequence
- Minimum number of jumps
- Edit Distance
- Maximum Rectangular Area in a Histogram
- Consecutive 1's not allowed
- Longest Even Length Substring
- String formation from substring
- Subset Sum Problem
- Factorials of large numbers
- Minimum Platforms
- Find Prime numbers in a range
- Stock buy and sell
- Largest Number formed from an Array
- Number of paths in a matrix with k coins
- Possible words from Phone digits
- Longest Palindrome in a String
- Rearrange Array Alternately
- Maximum of all subarrays of size k
- Boolean Matrix Problem
- Rotate a 2D array without using extra space
- Minimum Cost of ropes
- Inversion of array
- Maximum length Bitonic Subarray
- M-Coloring Problem
- Number to words
- Search Pattern
- Subsets with XOR value
- Max possible amount
- Super Primes
- Product of Primes
- Minimum sum
- Minimize the heights
- Next larger element
- X Total Shapes
- Sum of Subarrays
- Find the pattern
- 7 Segment Display
- Easy Query
- Rotate and delete
- Negative weight cycle
- Sonam Bewafa asks questions
- Snake and Ladder Problem
- Recursively remove all adjacent duplicates
- Shortest Source to Destination Path
- Knight Walk
- Find all four sum numbers
- Find whether path exist
- Express as sum of power of natural numbers
- First non-repeating character in a stream
- Smallest distinct window

Published Count(140)

- Minimum steps to get desired array
- Sum of all prime numbers between 1 and N.
- Type of input
- Count pairs with given sum
- Longest Arithmetic Progression
- Check if given four points form a square
- Longest Common Increasing Subsequence
- Pangram Checking
- Find the number of sub-arrays having even sum
- LCM of given array elements
- Maximum value K
- Next larger element
- Minimize string value
- Longest Consecutive 1's
- Happy Number
- Max-Min conversion
- Print all LCS sequences
- Kaprekar Number
- Keith Number
- Lucas Number
- Pairs with given XOR
- Pairs with specific difference
- Deficient Number
- Padovan Sequence
- Juggler Sequence
- Equal Point in Sorted Array
- Find (a^b)%m
- Sphenic Number
- N-Queen Problem
- Minimize the sum of product
- Convert floating point to natural number
- Solve the Sudoku
- Move all negative elements to end
- Hamiltonian Path
- Count the Number of Full Binary Trees
- Maximum 0’s between two immediate 1’s
- Coverage of all Zeros in a Binary Matrix
- Chocolate Distribution Problem
- Snake and Ladder Problem
- Exit Point in a Matrix
- Shortest Source to Destination Path
- Maximum Sum Bitonic Subsequence
- Knapsack with Duplicate Items
- Check if a number can be expressed as x^y
- Permutations in array
- String with numbers at its end
- Find sum of divisors
- Smallest factorial number
- Make it Colorful
- Last non-zero digit in factorial
- Flood fill Algorithm
- Save The Nation
- Replace O's with X's
- At least two greater elements
- Pair with greatest product in array
- Knight Walk
- Find all four sum numbers
- Decode the pattern
- Longest K unique characters substring
- Sum of product of x and y with floor(n/x) = y
- Roman Number to Integer
- Substring - Subsequence problem
- Count of AP Subsequences
- Largest Product Pallindrome
- Last two digit Fibonacci
- Word Boggle
- Form coils in a matrix
- Maximum no of 1's row
- Max absolute difference
- Drive the car
- Friends Pairing Problem
- Largest subarray with GCD one
- Print leaf nodes from preorder traversal of BST
- Distance of nearest cell having 1
- Is Sudoku Valid
- Find whether path exist
- Decode the string
- Max sum in sub-arrays
- Next Greater Even Number
- Largest prime factor
- Find duplicates under given constraints
- Find first and last occurrence of x
- Gold Mine Problem
- Smallest subarray with sum greater than x
- Check Mirror in N-ary tree
- Type of array
- Sum of dependencies in a graph
- Seeds of a number
- Sort in specific order
- Unit Area of largest region of 1's
- Check if two arrays are equal or not
- Game of XOR
- Generalised Fibonacci numbers
- Check if string is rotated by two places
- Find Nth root of M
- Invert the Bits
- Find largest word in dictionary
- Check if divisible by 11
- Maximum sum of hour glass
- XOR of all elements
- Check if divisible by 4
- Find median in a stream
- First non-repeating character in a stream
- Sum of all substrings of a number
- Travelling Salesman Problem
- Count rotations divisible by 4
- Count subsequences of type a^i b^j c^k
- Check if divisible by 36
- Binary fraction to decimal
- Minimize sum of alternate product
- Recaman’s sequence
- Minimum Operations
- Check for subsequence
- Equal point in a string of brackets
- Check if the door is open or closed
- Find all pairs with a given sum
- Check if frequencies can be equal
- Find first repeated character
- Find the largest number
- Shortest distance in infinite tree
- Largest zigzag sequence
- Count even substrings
- Meta Strings
- Convex Hull
- Tidy Number
- Check if date is valid
- Check if divisible by 5
- Matrix Exponentiation
- Count in array
- Strong Numbers
- Split the string
- Excel Sheet | Part - 2
- Does array represent Heap
- K
^{th}largest element in a stream - Thief trying to escape
- Magnet Array Problem
- Smallest distinct window
- Find the string in grid
- Largest Fibonacci Subsequence
- Find the Maximum Flow

Published Count(165)

- linked list of strings forms a palindrome
- Merge 2 sorted linked list in reverse order
- Linked List in Zig-Zag fashion
- Delete nodes having greater value on right
- Rearrange linked list in-place
- Remove duplicates from an unsorted linked list
- Count BST nodes that lie in a given range
- Add all greater values to every node in a BST
- Construct Binary Tree from Parent Array
- Clone a linked list with next and random pointer
- Flattening a Linked List
- Diagonal Traversal of Binary Tree
- Queue using two Stacks
- Remove duplicate element from sorted Linked List
- Stack using two queues
- Level order traversal in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- Boundary Traversal of binary tree
- Reverse alternate levels of a perfect binary tree
- Implement Stack using Linked List
- Implement stack using array
- Delete a node from BST
- Implement Queue using Linked List
- Implement Queue using array
- Insert a node in a BST
- BFS of graph
- Detect cycle in a directed graph
- Detect cycle in an undirected graph
- Determine if Two Trees are Identical
- Min distance between two given nodes of a Binary Tree
- Root to leaf path sum
- Maximum difference between node and its ancestor
- Range Minimum Query
- Doubly linked list Insertion
- Postorder traversal from given Inorder and Preorder traversals
- Lowest Common Ancestor in a BST
- Implement two stacks in an array
- Binary Search
- Binary Heap Operations
- Max sum path in two arrays
- Run Length Encoding
- Largest subarray of 0's and 1's
- Remove duplicate elements from sorted Array
- Level order traversal Line by Line
- Print BST elements in given range
- Print all possible strings
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological sort
- Minimum Depth of a Binary Tree
- Remove duplicates in small prime array
- Add two fractions
- Odd even level difference
- Almost Prime Numbers
- Binary Tree to BST
- K-Palindrome
- Merge K sorted linked lists
- Replace all 0's with 5
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Find the number of islands
- Find nth element of spiral matrix
- Max sum in the configuration
- Print the pattern | Set-1
- Get minimum element from stack
- Equilibrium index of an array
- Unique rows in boolean matrix
- Serialize and Deserialize a Binary Tree
- Largest product
- Circular tour
- Wildcard Pattern Matching
- Max rectangle
- Make Binary Tree From Linked List
- Toeplitz matrix
- Generate IP Addresses
- Remove every k'th node
- Leaf at same level
- Kth element in Matrix
- Is Binary Tree Heap
- Third largest element
- Subtraction in Linked List
- Clone a Binary Tree
- Convert to Roman No
- Implement strstr
- Match specific pattern
- Validate an IP Address
- Remove loop in Linked List
- Find Maximum value
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- Multiply two linked lists
- Distinct occurrences
- C++ STL | Set 1 (vector)
- C++ STL | Set 2 (pair)
- C++ STL | Set 3 (map)
- Max length chain
- Minimum Spanning Tree
- Additive sequence
- C++ STL | Set 4 (stack)
- C++ STL | Set 5 (queue)
- Middle Pattern
- C++ STL | Set 6 (set)
- Search a node in BST
- Largest BST
- Interleaved Strings
- Sum of permutations
- Equal Sum and XOR
- Sorted subsequence of size 3
- Sum of subset differences
- Josephus problem
- C++ STL | Set 7 (unordered map)
- C++ STL | Set 8 (unordered set)
- LRU Cache
- Smallest divisible number
- Box Stacking
- Expression Tree
- Remainder with 7
- Points in Straight Line
- Count Palindromic Subsequences
- AVL Tree Insertion
- Multiply two strings
- Minimum Swaps to Sort
- Implement Atoi
- Maximum Difference
- Count of distinct substrings
- Check if Linked List is Palindrome
- Strongly Connected Components (Kosaraju's Algo)
- Partition array to K subsets
- Print matrix in diagonal pattern
- Longest Consecutive Subsequence
- Repetition of k length substring
- Rat in a Maze Problem
- Bipartite Graph
- Find perimeter of shapes
- Max sum subarray by removing at most one element
- Maximum subset XOR
- Find the Closest Element in BST
- Generate Grey Code Sequences
- Check whether BST contains Dead End
- Delete a Node in Single Linked List
- Pots of Gold Game
- Delete keys in a Linked list
- Merge two BST 's
- Minimum four sum subsequence
- Count distinct elements in every window
- Max Level Sum in Binary Tree
- Root to leaf paths sum
- Three way partitioning
- Length of longest palindrome in linked list
- Sort a stack
- Duplicate subtree in Binary Tree
- Peak element
- Polynomial Addition
- Inorder Successor in BST
- Delete nodes greater than k
- Distance of nearest cell having 1
- Unit Area of largest region of 1's
- Check if string is rotated by two places
- Pangram Checking
- Next larger element
- Kth largest element in a stream
- Find median in a stream
- Solve the Sudoku
- Sum of all substrings of a number
- Roman Number to Integer