Name

Kakashi Hatake

Rank in Institute

#1

Courses Attended

Campus Ambassador

Overall Coding Score: 2731

Monthly Coding Score: 0

Weekly Coding Score: 0

- Reverse a linked list
- Occurence of an integer in a Linked List
- Rotate 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
- Add 1 to a number represented as linked list
- linked list of strings forms a palindrome
- Compare two linked lists
- Merge 2 sorted linked list in reverse order
- Detect Loop in linked list
- Rearrange linked list in-place
- Remove duplicates from an unsorted linked list
- Sorted insert for circular linked list
- Split a Circular Linked List into two halves
- Reverse a Doubly Linked List
- Insertion Sort
- Merge Sort
- Quick Sort
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Two Mirror Trees
- Maximum Width of Tree
- Heap Sort
- Nth node from end of linked list
- 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
- Find Transition Point
- 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
- BFS of graph
- Lowest Common Ancestor in a Binary Tree
- Determine if Two Trees are Identical
- Print all nodes that don't have sibling
- Absolute List Sorting
- Lowest Common Ancestor in a BST
- Implement two stacks in an array
- Max sum path in two arrays
- Run Length Encoding
- Level order traversal Line by Line
- Print BST elements in given range
- Largest subarray with 0 sum
- Minimum Depth of a Binary Tree
- Remove duplicates in small prime array
- Odd even level difference
- Almost Prime Numbers
- Binary Tree to BST
- K-Palindrome
- Max sum in the configuration
- Equilibrium index of an array
- Unique rows in boolean matrix
- Remove every k'th node
- Leaf at same level
- Match specific pattern
- Validate an IP Address
- Find Maximum value
- Multiply two linked lists
- Distinct occurrences
- Josephus problem
- You and your books
- Expression Tree
- Points in Straight Line
- Maximum Difference
- Check if Linked List is Palindrome
- Max distance between same elements
- Longest Consecutive Subsequence
- Repetition of k length substring
- Generate Grey Code Sequences
- Delete a Node in Single Linked List
- Kth largest element in BST
- Find duplicates in an array
- Multiply two polynomials II
- Count distinct elements in every window
- Check if two strings are k-anagrams or not
- Max Level Sum in Binary Tree
- Special Stack
- Root to leaf paths sum
- Three way partitioning
- Sort a stack
- String Modification
- Longest consecutive sequence in Binary tree
- Level order traversal
- Peak element
- Index Of an Extra Element
- Merge Sort for Linked List
- Convert Ternary Expression to Binary Tree
- Union of Two Linked Lists
- Intersection of Two Linked Lists
- Insert in a Sorted List
- Split Singly Linked List Alternatingly
- Ancestors in Binary Tree
- Level of a Node in Binary Tree
- Sum of leaf nodes in BST
- Root to Leaf Paths
- Counting Sort
- Max and min element in Binary Tree
- Perfect Binary Tree
- XOR Linked List
- Counting elements in two arrays
- Sum of digits in factorial of a number
- Reverse a string using Stack
- Linked List that is Sorted Alternatingly
- XOR of a given range
- Full binary tree
- Modify Linked List-1
- Symmetric Tree
- Merge Lists Alternatingly
- Range of Composite numbers
- Arrange Consonants and Vowels
- Huffman Decoding
- Vertical sum
- Next Right Node
- Count Pairs whose sum is equal to X
- Depth of node
- Maximum Node Level
- Children Sum Parent
- Diagonal Sum In Binary Tree
- Deletion and Reverse in Linked List
- Linked List Matrix
- Reverse First K elements of Queue
- Remove Half Nodes
- Sum of Leaf Nodes
- Sum of Right Leaf Nodes
- Sum of Left Leaf Nodes
- Deletion in a Binary Tree
- Nodes at Odd Levels
- Check if two Nodes are Cousins
- Sum of Leaf Nodes at Min Level
- C++ STL Priority Queue
- Tilt of Binary Tree
- Move all zeros to the front of the linked list
- Delete middle element of a stack
- Rotate doubly Linked List
- C++ Multi-level inheritance
- C++ Function overloading
- C++ complex number addition (operator overloading)
- C++ Template
- The New Line
- Data Types
- The Size of
- Taking input
- Learn to Comment
- GetLine and Ignore
- Learning to be precise
- Bitwise Operators
- Even Odd
- For Loop- primeCheck
- While loop- printTable
- Learning Macros
- Step by Step Condition
- Start Coding - Java
- The New Line - Java
- Data Types - Java
- Taking input - Java
- Learn to Comment - Java
- nextLine and next
- Precise Fomat - Java
- logical Operators - Java
- Bitwise Operators - Java
- Even Odd - Java
- For Loop- primeCheck - Java
- While loop- printTable - Java
- Step by Step Condition - Java
- Count Odd Even
- Need Some Change
- Count the Specials
- Matrix Interchange
- Predict the Column
- Xoring and Clearing
- Consonants and Vowels check
- Even Subsets
- Almost Equal
- The Pattern Matcher
- Count Odd Even - Java
- The Pattern Matcher - Java
- Need Some Change - Java
- Almost Equal -Java
- Count the Specials - Java
- Even Subsets - Java
- Matrix Interchange - Java
- Consonants and Vowels check - Java
- Predict the Column - Java
- Xoring and Clearing - Java
- Magic in CPP
- Swap the objects
- Structs and Objects
- Two Dimensional World
- Learning Structs
- Delete Array
- Pair in Java
- Maximum Area Rectangle
- Sum of Big Integers
- BigInteger Multiply
- BigInteger mod
- Find the Frequency
- Pair Sum in Vector
- Student of the Year
- ArrayList Operation
- Operations on ArrayList
- Stack Operations
- Queue Operations
- Get min at pop
- Deque Implementations
- Min Heap implementation
- Frequency Game
- Pair Sum Existence- Revisited
- Union of Two Sorted Arrays
- Winner of an election
- Subarray range with given sum
- The Modified String
- Reverse words in a given string
- Smallest window in a string containing all the characters of another string
- Minimum indexed character
- Pangram Checking
- Minimum indexed character
- Anagram
- Number of Unique Paths
- Wave Array
- Maximum Gap
- Pattern Searching
- Print Pattern
- Search in a Rotated Array
- Rectangles in N*N Board
- Squares in N*N Chessboard
- Palindrome numbers
- Subarray with least average
- Magic Number
- Trailing zeroes in factorial
- Non Repeating Character
- a^b(Set 2)
- Distinct Substrings
- Sum of Middle Elements of two sorted arrays
- Good Pairs
- Reverse words in a given string
- Count Substrings
- Move all zeroes to end of array
- Remove all duplicates from a given string
- Remove “b” and “ac” from a given string
- Finding Position
- Single Number
- Element that appears once where every element occurs twice
- Longest Distinct characters in string
- Remove Duplicates
- Maximum sum increasing subsequence
- Array to BST
- Triangular Number
- Arrange Balls
- Make Number Odd
- Key Pair
- Maximum Difference
- Product array puzzle
- Length Unsorted Subarray
- Multiply two polynomals
- Reverse Bits
- Count Smaller elements
- Reach the Nth point
- Subarray with given sum
- Count numbers
- Leaders in an array
- Swap all odd and even bits
- Count number of hops
- Count pairs with given sum
- Cycle Race
- Cutting Rectangles
- Three Great Candidates
- Reach a given score
- Next in Series
- Possible paths
- Search in a matrix
- Cross the Bridge
- Day of the week
- Largest power of prime
- Chinky and diamonds
- Generate binary string
- Arrange the Balls
- 0 - 1 Knapsack Problem
- Longest Common Increasing Subsequence
- Trail of ones
- Find the number of sub-arrays having even sum
- Valid Substring
- Count the Reversals
- Tom and Jerry
- Number of ways to find two numbers
- Cutted Segments
- Number that are not divisible
- Game of Death in a circle
- Power of Numbers
- Left out candies
- Count digits in a factorial
- Ordering of strings
- Change Bits
- Collection of pens
- Product of two digit numbers
- Magic numbers
- Permutation with Spaces
- Element appearing once
- Floor in a Sorted Array
- Buildings receiving sunlight
- Finding Profession
- Maximize Dot Product
- Max value
- Flip Bits
- Finding the numbers
- Optimal walk
- Count Increasing Subsequences
- Least Prime Factor
- Collecting Trees
- Happy Number
- Game of cells
- Equal 0, 1 and 2
- Adding Ones
- Circle and Lattice Points
- Largest Even Number
- Count Pairs in an Array
- Min sum formed by digits
- String Manipulation
- Help Nobita
- Knapsack with Duplicate Items
- Find sum of divisors
- Last non-zero digit in factorial
- Reverse Coding
- Flood fill Algorithm
- Decode the pattern
- Longest K unique characters substring
- Roman Number to Integer
- Maximum no of 1's row
- Decode the string
- Game of XOR
- Find Nth root of M
- Find largest word in dictionary
- Learn Geometry
- Love For The Twins
- Sum of all substrings of a number
- Recaman’s sequence
- Minimum Operations
- Find all pairs with a given sum
- Largest zigzag sequence
- Meta Strings
- Check if palindromic ignoring spaces
- Excel Sheet | Part - 2
- Largest Fibonacci Subsequence
- Longest Palindromic Subsequence
- Evaluation of Postfix Expression
- Recursive sequence
- Efficiently sorting numbers in range from 0 to n^2 - 1
- Two numbers with odd occurrences
- Sequence of Sequence
- Element in a Series
- Modular multiplicative inverse
- Array Subset of another array
- Karatsuba Algorithm
- First negative integer in every window of size k
- Sum of product of all pairs
- Paths to reach origin
- Number of divisors in a given range
- Find Pair Given Difference
- Count the elements
- Second most repeated string in a sequence
- k modulus array element
- Shortest Common Supersequence
- Assign Mice Holes
- Nth number made of prime digits
- Large number division
- Rearrange a string
- Divisibility by 999
- Number of Groups
- Break a number
- Count of strings that can be formed using a, b and c under given constraints
- Maximum sum Problem
- Minimum indexed character
- Longest Repeating Subsequence
- Stickler Thief
- k-th smallest number using digits of a given number
- Compute (a*b)%c
- N’th Pentagonal Number
- Roll the characters of a String
- Primorial of a number
- Generate all palindromic numbers less than n
- Kth LSB
- Common Subsequence
- K-Ary Tree
- Right angled triangles
- Boundary Elements of Matrix
- Maximum sum difference
- Special Numbers
- Sum of two large numbers
- Check if a Integer is power of 8 or not
- Required Rooms
- Find the minimum time
- Numbers containing 1, 2 and 3
- Woodall Number
- Geek and his Tricky Series
- Next Happy Number
- Last seen array element
- Count numbers which can be constructed using two numbers
- Find the maximum number of handshakes
- Closing bracket index
- Number of pairs with maximum sum
- Longest common prefix
- Roof Top
- Pairs which are Divisible by 4
- Trisha's Number
- Ritika's Money
- Count unset bits in a given Range
- Find winner of the Game of Nim
- Arya and The Great War
- Mystic Falls School
- Find out the Team
- Swap the closest and farthest digits
- Nearest multiple of 10
- Remove leading zeros from an IP address
- Form a number divisible by 3 using array digits
- Maximum height of the staircase
- Extra Perfect Numbers
- C++ Visible Numbers
- Amicable Pair
- Counts Zeros Xor Pairs
- Easy string
- Swap every two bits in bytes
- Print Binary Tree levels in sorted order
- Convert a sentence into its equivalent mobile numeric keypad sequence
- Check if a number is divisible by 8
- XOR of two numbers after making length of their binary representations equal
- Arya's Long String
- Ishaan and Sticks
- Akaash's Assignment
- Find the closest pair from two arrays
- Common Divisor
- Print all bitwise subsets of a number N
- Print Bracket Number
- Searching in an array where adjacent differ by at most k
- Cutting Binary String
- The Even Array
- Print binomial expansion series
- The Modified String
- Days of Our Lives
- Minimum changes to make all substrings distinct
- Variation in Nim Game
- Connell Sequence
- Save Ironman
- Penalty Shooters
- Java Collections | Set 6 (Stack)
- C++ Exception Handling
- Pair with given sum in a sorted array

- Given a linked list, reverse alternate nodes and append at the end
- Reverse a Linked List in groups of given size.
- Delete nodes having greater value on right
- Quick Sort on Linked List
- Count BST nodes that lie in a given range
- Check for BST
- Tree from Postorder and Inorder
- Bottom View of Binary Tree
- Delete without head pointer
- Intersection Point in Y Shapped Linked Lists
- Add all greater values to every node in a BST
- Construct Binary Tree from Parent Array
- 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
- Delete a node from BST
- Detect cycle in an undirected graph
- Min distance between two given nodes of a Binary Tree
- Maximum difference between node and its ancestor
- Range Minimum Query
- The Celebrity Problem
- Print a Binary Tree in Vertical Order
- Merge K sorted linked lists
- Find the number of islands
- Get minimum element from stack
- Serialize and Deserialize a Binary Tree
- Circular tour
- Wildcard Pattern Matching
- Max rectangle
- Make Binary Tree From Linked List
- Generate IP Addresses
- Check if subtree
- Extreme nodes in alternate order
- Kth element in Matrix
- Clone a Binary Tree
- Remove loop in Linked List
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- Max length chain
- Minimum Spanning Tree
- Additive sequence
- Largest BST
- Interleaved Strings
- Sum of permutations
- LRU Cache
- Box Stacking
- Count Palindromic Subsequences
- Multiply two strings
- Minimum Swaps to Sort
- Count of distinct substrings
- Rat in a Maze Problem
- Max sum subarray by removing at most one element
- Number of root to leaf paths
- Find the Closest Element in BST
- Pots of Gold Game
- Delete keys in a Linked list
- Merge two BST 's
- Trie | (Delete)
- Merge k Sorted Arrays
- Length of longest palindrome in linked list
- Bridge Edge in Graph
- Print Nodes having K leaves
- Duplicate subtree in Binary Tree
- Find the missing no in string
- Top View of Binary Tree
- Smallest range in K lists
- k-th smallest element in BST
- Polynomial Addition
- Euler circuit and Path
- Merge Sort on Doubly Linked List
- Binary Tree to CDLL
- Find a pair with given target in BST
- Count More than n/k Occurences
- Occurences of 2 as a digit
- Populate Inorder Successor for all nodes
- Construct expression tree
- K-Sum Paths
- Foldable Binary Tree
- Leftmost and rightmost nodes of binary tree
- Construct tree from Inorder and LevelOrder
- Node at distance
- Mirror of a given node
- Pairs violating BST property
- Leaves to DLL
- Largest Independent Set Problem
- Right Sibling in Binary Tree
- Duplicate Subtrees
- Construct Tree from Preorder Traversal
- Construct a Full Binary Tree
- Convert Level Order Traversal to BST
- Count Number of SubTrees having given Sum
- Path Count in Directed Graph
- C++ Friend function
- C++ Generic sort
- Operations on PriorityQueue
- Swap Kth nodes from ends
- Add two numbers represented by Linked List
- Maximum sum of Non-adjacent nodes
- Smallest Positive missing number
- Unique BST's
- Distance of nearest cell having 1
- Unit Area of largest region of 1's
- Subarrays with equal 1s and 0s
- Sorting Elements of an Array by Frequency
- Longest consecutive subsequence
- Case-specific Sorting of Strings
- Count ways to N'th Stair(Order does not matter)
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Complement
- Sum Of Prime
- Excel Sheet | Part - 1
- Maximum Sub Array
- Print Diagonally
- Overlapping Intervals
- Maximum Index
- Equal Sum
- Next Permutation
- Longest Increasing Subsequence
- Parenthesis Checker
- Longest Common Subsequence
- Minimum number of jumps
- Count ways to reach the n'th stair
- Count ways to N'th Stair(Order does not matter)
- Egg Dropping Puzzle
- Edit Distance
- Magic Triplets
- nCr
- Maximum Rectangular Area in a Histogram
- Longest Span with same Sum in two Binary arrays
- Consecutive 1's not allowed
- Game of Chocolates
- Count of Subarrays
- Longest Even Length Substring
- Path in Matrix
- Trapping Rain Water
- String formation from substring
- Case-specific Sorting of Strings
- Rank of Matrix
- Sum of bit differences
- Subset Sum Problem
- Maximize The Array
- Factorials of large numbers
- Number of Coins
- Minimum Platforms
- Number following a pattern
- Find Prime numbers in a range
- Largest Number formed from an Array
- Jumping Numbers
- Longest Palindrome in a String
- Modular Exponentiation for large numbers
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Relative Sorting
- Black and White
- Maximum of all subarrays of size k
- Largest square formed in a matrix
- Row with max 1s
- Boolean Matrix Problem
- Count Integral Points
- Sorting Elements of an Array by Frequency
- Design a tiny URL or URL shortener
- Nuts and Bolts Problem
- Rotate a 2D array without using extra space
- Special Keyboard
- Number of ways
- Dyck Path
- Minimum Cost of ropes
- Sum of Query II
- Form a palindrome
- Inversion of array
- Preorder to Postorder
- Length of the longest substring
- Smallest number on left
- Longest consecutive subsequence
- Maximum Sum Path in Two Arrays
- Stock span problem
- Convert an array to reduced form
- Minimum steps to get desired array
- Subsequence matching
- Dimensions of Rectangle
- Handshakes
- Tic-Tac-Toe
- Number to words
- Palindromic Array
- Betting game
- Is Binary Number Multiple of 3
- Possible groups
- Preorder Traversal and BST
- Card Rotation
- Search Pattern
- Fill up buckets
- Longest Arithmetic Progression
- Jumbled Strings
- Palindromic Strings
- Max possible amount
- Cost of Sweets
- Bleak Numbers
- Number of pairs
- Product of Primes
- Maximum Profit
- Digit multiplier
- Circle of strings
- Nodes at even distance
- Build the smallest
- Your Social Network
- Largest number in K swaps
- Special Matrix
- Next larger element
- Composite and Prime
- Taking 1 out of 3 consecutives
- X Total Shapes
- Total Decoding Messages
- Unique BST's
- Distinct Transformations
- Subsets
- Matchsticks game
- Combination Sum
- Combination Sum - Part 2
- Word Break
- Longest Prefix Suffix
- Kth smallest element
- Divisible by 8
- Divisibility
- Transform String
- 3 Divisors
- The Smurfs
- Count Divisors of Factorial
- Maximum calorie
- Prime Factors and their Powers
- Longest Common Substring
- Easy Query
- Count Palindrome Sub-Strings of a String
- Largest Divisibility Test
- Check if a string is repetition of its substring of k-length
- Rotate and delete
- Recursively remove all adjacent duplicates
- Shortest Source to Destination Path
- Number of Palindromic paths in a Matrix
- Trie | (Insert and Search)
- Replace O's with X's
- Partition a number into two divisible parts
- Knight Walk
- Find all four sum numbers
- Word Boggle
- Form coils in a matrix
- Max absolute difference
- Print leaf nodes from preorder traversal of BST
- Is Sudoku Valid
- Find whether path exist
- Largest prime factor
- Unit Area of largest region of 1's
- Rearrange characters
- Express as sum of power of natural numbers
- First non-repeating character in a stream
- Count subsequences of type a^i b^j c^k
- Stepping Numbers
- Matrix Exponentiation
- Count in array
- K
^{th}largest element in a stream - Water Overflow
- Zero Sum Subarrays
- Magnet Array Problem
- Smallest window in a string containing all the characters of another string
- Minimum number of steps to reach a given number.
- Floyd Warshall
- Huffman Encoding
- Nearly Sorted Algorithm
- Infix to Postfix
- Optimal binary search tree
- Smallest Absolute Difference
- Smallest Positive missing number
- Longest Bitonic subsequence
- Mobile numeric keypad
- Maximum sum Rectangle
- Maximum Intervals Overlap
- Minimum Time
- Perfect Sum Problem
- Longest Path in a matrix
- Array Pair Sum Divisibility Problem
- First Digit
- Min cut Square
- N Digit numbers with digits in increasing order
- Rotten Oranges
- Prime factorization and geek number
- Sisters and coins
- Probability of Knight
- LCS of three strings
- Longest repeating and non-overlapping substring
- Longest Common Prefix in an Array
- Minimum cost to fill given weight in a bag
- Steps by Knight
- Median In a Row-Wise sorted Matrix
- In First But Second
- Smith Number
- Row with minimum number of 1's
- Large Product-2
- Numbers with alternative 1's
- Longest common substring value of two numbers
- Coins and Game
- Brackets in Matrix Chain Multiplication
- Matrix Chain Multiplication
- Sum-string
- Pairs of Non Coinciding Points
- Nine Divisors
- A Game of LCM
- Carmichael Numbers
- Maximum bitonic subarray sum
- Alternate Vowel and Consonant String
- Find the element at given index
- Count divisors of product of array elements
- Print N-bit binary numbers having more 1’s than 0’s
- Queries for counts of multiples in an array
- Next higher palindromic number using the same set of digits
- Series with largest GCD and sum equals to N
- Find the last digit when factorial of A divides factorial of B
- Last two digits of Fibonacci
- Pizza Mania
- Killing Spree
- Number of subarrays with maximum values in given range
- Count of Palindromic substrings in an Index range
- Lazy Pasha
- Longest subarray with sum divisible by K
- Subarrays with equal 1s and 0s
- Make Matrix Beautiful
- Longest Sub-Array with Sum K
- Challenge by Nikitasha
- Sick Pasha
- Beautiful SubSequence
- The Tiny Miny
- Letters Collection
- Big Numbers Series
- Sum of XOR of all pairs
- Marks of PCM
- Pass the semester
- Nitika and her queries
- Geek and Strings
- Container with most water
- Save Gotham!
- The Painter's Partition Problem
- Find the N-th character
- Large Factorials
- Part of it.
- Lucky alive person in a circle
- count special palindromic
- Element left after performing alternate OR & XOR operation
- Optimal Strategy For A Game

- QuickSort on Doubly Linked List
- Reorder List
- Binary Tree to DLL
- AVL Tree Insertion
- Partition array to K subsets
- Maximum subset XOR
- Longest Palindromic Substring in Linear Time
- Alien Dictionary
- AVL Tree Deletion
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST
- Number of Turns in Binary Tree
- Solve the Sudoku
- Minimum Points To Reach Destination
- Minimum sum partition
- Maximum of minimum for every window size
- Head to Tail ordering
- Merge Without Extra Space
- Next Smallest Palindrome
- Find sum of different corresponding bits for all pairs
- Return two prime numbers
- Allocate minimum number of pages
- A Simple Fraction
- Ugly Numbers
- Largest rectangle of 1’s with swapping of columns allowed
- Path of greater than equal to k length
- Rohan's Love for Matrix
- Number Formation
- Boolean Parenthesization
- Longest valid Parentheses
- Word Break - Part 2
- Print all LCS sequences
- Minimum Cost Path
- N-Queen Problem
- Solve the Sudoku
- Generalised Fibonacci numbers
- Find median in a stream
- Travelling Salesman Problem
- Find the Maximum Flow
- Max Circular Subarray Sum
- Minimum number of elements
- Very Tough Problem
- Distinct palindromic substrings
- Longest Zig-Zag Sub Sequence
- Similar expressions
- Convert to Strictly increasing array
- Phone directory
- Numbers with one absolute difference
- Count the subarrays having product less than k
- Adventure in a Maze
- Closest Palindrome
- Minimum number to make median X