- Check for Binary
- Replace all 0's with 5
- Print the pattern | Set-1
- Palindromic Array
- C++ Functions (Sum of numbers) | Set 1
- Print alternate elements of an array
- Reverse an Array
- Pascal Triangle
- Alone in couple
- Palindrome String
- Second Largest
- Binary representation
- Reversing the vowels
- Reverse a String
- Count Digits
- Remove vowels from string
- Upper case conversion
- Perfect Arrays
- Find n-th term of series 1, 3, 6, 10, 15, 21

Name

Dhirendra Chaudhary

Institution

Rank in Institute

#2

Courses Attended

Campus Ambassador

Other Profile Link

Overall Coding Score: 1538

Monthly Coding Score: 0

Weekly Coding Score: 0

- Print Linked List elements
- Count nodes of linked list
- Node at a given index in linked list
- Delete node in Doubly Linked List
- Size of Binary Tree
- Inorder Traversal
- Count Leaves in Binary Tree
- Height of Binary Tree
- Finding middle element in a linked list
- Circular Linked List
- Postorder Traversal
- Square root
- Doubly linked list Insertion
- Binary Search
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Third largest element
- Preorder Traversal
- Implement strstr
- Search a node in BST
- C++ STL | Set 8 (unordered set)
- Implement Atoi
- Find triplets with zero sum
- Linked List Insertion
- Minimum element in BST
- Anagram of String
- Circular Linked List Traversal
- Linked List Length Even or Odd?
- Delete Alternate Nodes
- Identical Linked Lists
- Find the Sum of Last N nodes of the Linked List
- Modular Node
- Find n/k th node in Linked list
- Queue Reversal
- Sum of Binary Tree
- Insert in Middle of Linked List
- Product of array elements
- C++ Call by reference
- Start Coding
- logical Operators
- Sort and Reverse Vector
- Front to Back
- Stack designer
- Queue Push & Pop
- Sum Array Puzzle
- Check if a string is Isogram or not
- Search an Element in an array
- Binary String
- GCD of Array
- Repetitive Addition Of Digits
- Searching a number
- Power of 2
- Pythagorean Triplet
- Sort a String
- Strong Number
- Doubling the value
- Majority Element
- Sieve of Eratosthenes
- Shortest path from 1 to n
- Amend The Sentence
- Rotate Array
- Check if the number is Fibonacci
- Missing number in array
- Maximum product of two numbers
- Segregate Even and Odd numbers
- Count total set bits
- Number is sparse or not
- Greater on right side
- Immediate Smaller Element
- Sum of distinct elements
- Binary Array Sorting
- Intersection of two arrays
- Union of two arrays
- Remove character
- Number of occurrence
- Maximum repeating number
- k largest elements
- Maximum money
- Middle of Three
- Keypad typing
- Rotating an Array
- Reverse array in groups
- Minimize the sum of product
- Interesting Patterns
- Find first and last occurrence of x
- Type of array
- Sum of dependencies in a graph
- Sort in specific order
- Check if string is rotated by two places
- XOR of all elements
- Find first set bit
- Find the element that appears once in sorted array
- Last index of One
- Cyclically rotate an array by one
- Print an array in Pendulum Arrangement
- Transpose of Matrix
- Check whether K-th bit is set or not
- Minimum sum of two elements from two arrays
- Find the smallest and second smallest element in an array
- Find minimum and maximum element in an array
- Reverse a string with spaces intact
- Sorted matrix
- Sum Terms Nth Row
- Balanced Array
- Swap and Maximize
- Check if a string is Isogram or not
- Alternative Sorting
- Rightmost different bit
- Check set bits
- Set kth bit
- Toggle bits given range
- Stable Sort and Position
- Check perfect square
- Positive and negative elements
- Part Sort
- The Counting Game !!
- Repated Sum and then Multiply
- Absolute Difference of 1
- Remove common characters and concatenate
- Find k-th character in string
- Repeated Character
- Sort String
- Find the fine
- Minimum Product of k Integers
- Maximize ∑arr[i]*i of an Array
- Weak Maths
- Stuti and her Problem
- Find the closest number
- Last index of a character in the string
- Special Series Sum
- Special Odd Series Sum
- Remove consonants from a string
- Most frequent word in an array of strings
- Check if strings are rotations of each other or not
- Ishaan Loves Chocolates
- Program for length of the longest word in a sentence
- Number Series
- Confused pappu
- Difference series
- Gray Code
- Gray to Binary equivalent
- Prime String
- Find The Sequence
- Fibonacci to N
- Average Count Array
- Java 1-d and 2-d Array
- C++ 2-D Arrays | Set-2

- 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
- 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
- Merge Sort
- Right View of Binary Tree
- Mirror Tree
- Two Mirror Trees
- Maximum Width of Tree
- Diameter of Binary Tree
- Nth node from end of linked list
- Left View of Binary Tree
- Delete Middle of Linked List
- Merge two sorted linked lists
- Decimal Equivalent of Binary Linked List
- Intersection of two sorted Linked lists
- Find Transition Point
- Queue using two Stacks
- Remove duplicate element from sorted Linked List
- Level order traversal in spiral form
- Reverse Level Order Traversal
- Insert a node in a BST
- Determine if Two Trees are Identical
- Lowest Common Ancestor in a BST
- Level order traversal Line by Line
- Print BST elements in given range
- Minimum Depth of a Binary Tree
- Odd even level difference
- Binary Tree to BST
- Equilibrium index of an array
- Remove every k'th node
- Is Binary Tree Heap
- Validate an IP Address
- Expression Tree
- Check if Linked List is Palindrome
- Delete a Node in Single Linked List
- Kth largest element in BST
- Find duplicates in an array
- Count distinct elements in every window
- Max Level Sum in Binary Tree
- Special Stack
- Three way partitioning
- Sort a stack
- Peak element
- Inorder Successor in BST
- Index Of an Extra Element
- Union of Two Linked Lists
- Intersection of Two Linked Lists
- Insert in a Sorted List
- Split Singly Linked List Alternatingly
- Level of a Node in Binary Tree
- Sum of leaf nodes in BST
- Counting Sort
- 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
- Vertical sum
- Count Pairs whose sum is equal to X
- Insert in Sorted way in a Sorted DLL
- Maximum Node Level
- Children Sum Parent
- Diagonal Sum In Binary Tree
- Find length of Loop
- Deletion and Reverse in Linked List
- Median of BST
- Linked List Matrix
- Reverse First K elements of Queue
- ZigZag Tree Traversal
- Move all zeros to the front of the linked list
- Rotate doubly Linked List
- 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
- 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
- Back to Front
- Pair Sum in Vector
- Student of the Year
- ArrayList Operation
- Stack Operations
- Queue Operations
- Deque Implementations
- Min Heap implementation
- Frequency Game
- Pair Sum Existence
- Pair Sum Existence- Revisited
- The Modified String
- Reverse words in a given string
- Minimum indexed character
- Pangram Checking
- Frequencies of Limited Range Array Elements
- Anagram
- Wave Array
- Maximum Gap
- Pattern Searching
- Print Pattern
- Search in a Rotated Array
- Palindrome numbers
- Maximize Toys
- Large Factorial
- Trailing zeroes in factorial
- Non Repeating Character
- a^b(Set 2)
- Sum of Middle Elements of two sorted arrays
- First Repeating Element
- Count Occurences of Anagrams
- Reverse words in a given string
- Isomorphic Strings
- Count Substrings
- Check if a given string is a rotation of a palindrome
- Move all zeroes to end of array
- Remove all duplicates from a given string
- Activity Selection
- Remove “b” and “ac” from a given string
- Equal Sum and Product
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Pairs with difference k
- Maximum value in a bitonic array
- Finding Position
- Amount of Water
- Single Number
- Segregate even and odd nodes in a Linked List
- Count increasing Subarrays
- Element that appears once where every element occurs twice
- Longest Distinct characters in string
- N meetings in one room
- Remove Duplicates
- Addition of submatrix
- Facing the sun
- Triangular Number
- Key Pair
- Maximum Difference
- Product array puzzle
- Length Unsorted Subarray
- Multiply two polynomials
- Reverse Bits
- Count Smaller elements
- Subarray with given sum
- Leaders in an array
- Swap all odd and even bits
- Count pairs with given sum
- Inorder Traversal and BST
- Segregate 0s and 1s
- Triplet Sum in Array
- Three Great Candidates
- Inverted triangle of stars
- Minimum element in a sorted and rotated array
- Search in a matrix
- Largest power of prime
- Shop in Candy Store
- Largest number possible
- Count the Zeros
- Find the number of sub-arrays having even sum
- Next Prime Palindrome
- Number of ways to find two numbers
- Power of Numbers
- Arithmetic Number
- Crack the series
- Element appearing once
- Equilibrium point
- Floor in a Sorted Array
- Buildings receiving sunlight
- Finding the numbers
- Least Prime Factor
- Maximize sum after K negations
- Deficient Number
- Largest Even Number
- Count Pairs in an Array
- Min sum formed by digits
- Move all negative elements to end
- Chocolate Distribution Problem
- Sum of k smallest elements in BST
- Find sum of divisors
- Reverse Coding
- Maximum no of 1's row
- Drive the car
- Game of XOR
- Love For The Twins
- Find all pairs with a given sum
- Numbers with same first and last digit
- Excel Sheet | Part - 2
- Largest Fibonacci Subsequence
- K-th element of two sorted Arrays
- Evaluation of Postfix Expression
- Efficiently sorting numbers in range from 0 to n^2 - 1
- Array Subset of another array
- Karatsuba Algorithm
- First negative integer in every window of size k
- Sum of product of all pairs
- Game with String
- Four Elements
- Faulty wiring and Bulbs
- Find the closest prime number to a given number
- Find Pair Given Difference
- Count the elements
- Reverse vowels in a given string
- Assign Mice Holes
- Sort by Absolute Difference
- Number of Groups
- Minimum indexed character
- Remaining String
- Even and odd elements at even and odd positions
- Find the most frequent digit
- Compute (a*b)%c
- Merging two unsorted arrays in sorted order
- Smallest number by rearranging digits of a given number
- Sum of Lengths of Non-Overlapping SubArrays
- Kth LSB
- Chocolate Station
- Common Subsequence
- Right angled triangles
- Boundary Elements of Matrix
- Star elements
- Print the pattern
- Pairs with Positive Negative values
- Numbers containing 1, 2 and 3
- Pairs with Difference less than K
- Find k-th missing element
- Geek and his Tricky Series
- Summed Matrix
- Closing bracket index
- Number of pairs with maximum sum
- Longest common prefix
- Roof Top
- Pairs which are Divisible by 4
- 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
- Check if array contains contiguous integers with duplicates allowed
- Maximum height of the staircase
- Winner of an election
- Print this pattern!
- Counts Zeros Xor Pairs
- Count pairs Sum in matrices
- Mysterious Series
- Find the closest pair from two arrays
- Common Divisor
- The Inverting Factor
- Summing the Sum
- Print Bracket Number
- Check if it is possible to survive on Island
- Searching in an array where adjacent differ by at most k
- The Even Array
- The Light Problem
- Minimum changes to make all substrings distinct
- Smallest number with sum of digits as N and divisible by 10^N
- Delete array elements which are smaller than next or become smaller
- Save Ironman
- Fitting The Array
- K-th missing element
- 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
- 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
- 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
- The Celebrity Problem
- Vertical Traversal of Binary Tree
- Merge K sorted linked lists
- Get minimum element from stack
- Circular tour
- Extreme nodes in alternate order
- Kth element in Matrix
- Clone a Binary Tree
- Remove loop in Linked List
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- Largest BST
- Sum of permutations
- Multiply two strings
- Minimum Swaps to Sort
- Find the Closest Element in BST
- Delete keys in a Linked list
- Merge two BST 's
- Merge k Sorted Arrays
- Length of longest palindrome in linked list
- Top View of Binary Tree
- k-th smallest element in BST
- Polynomial Addition
- Merge Sort on Doubly Linked List
- Binary Tree to CDLL
- Find a pair with given target in BST
- Count More than n/k Occurences
- Leftmost and rightmost nodes of binary tree
- Mirror of a given node
- Pairs violating BST property
- Leaves to DLL
- C++ Friend function
- C++ Generic sort
- Operations on PriorityQueue
- Swap Kth nodes from ends
- Add two numbers represented by Linked List
- Sorting Elements of an Array by Frequency
- Longest consecutive subsequence
- Case-specific Sorting of Strings
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Sum Of Prime
- Excel Sheet | Part - 1
- Maximum Sub Array
- Print Diagonally
- Overlapping Intervals
- Equal Sum
- Next Permutation
- Parenthesis Checker
- Longest Common Subsequence
- Minimum number of jumps
- Magic Triplets
- nCr
- Maximum Rectangular Area in a Histogram
- Count of Subarrays
- Longest Even Length Substring
- Trapping Rain Water
- Case-specific Sorting of Strings
- Sum of bit differences
- Factorials of large numbers
- Minimum Platforms
- Find Prime numbers in a range
- Possible words from Phone digits
- 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
- Maximum of all subarrays of size k
- 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
- Minimum Cost of ropes
- Sum of Query II
- Inversion of array
- Length of the longest substring
- Smallest number on left
- Longest consecutive subsequence
- Convert an array to reduced form
- Minimum steps to get desired array
- Subsequence matching
- Handshakes
- Palindromic Array
- Betting game
- Is Binary Number Multiple of 3
- Possible groups
- Preorder Traversal and BST
- Bleak Numbers
- Super Primes
- Minimize the heights
- Next larger element
- Composite and Prime
- Longest Prefix Suffix
- Kth smallest element
- Divisible by 8
- Transform String
- Longest Common Substring
- Recursively remove all adjacent duplicates
- Find all four sum numbers
- Is Sudoku Valid
- Find whether path exist
- Rearrange characters
- First non-repeating character in a stream
- Find the largest number
- K
^{th}largest element in a stream - Nearly Sorted Algorithm
- Infix to Postfix
- Smallest Positive missing number
- Mobile numeric keypad
- Reverse Spiral Form of Matrix
- Array Pair Sum Divisibility Problem
- Job Sequencing Problem
- Page Faults in LRU
- N Digit numbers with digits in increasing order
- Rotten Oranges
- Longest Common Prefix in an Array
- In First But Second
- Mail System Design
- Row with minimum number of 1's
- Large Product-2
- Numbers with alternative 1's
- Maximum Tip Calculator
- Alternate Vowel and Consonant String
- Find the last digit when factorial of A divides factorial of B
- The Fibonacci-prime number
- Container with most water
- Save Gotham!
- Shreyansh and his bits
- Maximize the sum of selected numbers from an array to make it empty
- Find the N-th character
- Large Factorials

- Reorder List
- Fixing Two nodes of a BST
- Maximum of minimum for every window size
- Merge Without Extra Space
- Return two prime numbers
- Ugly Numbers
- nCr mod M | Part 1
- Longest valid Parentheses
- Generalised Fibonacci numbers
- Distinct palindromic substrings
- Similar expressions
- Phone directory
- Numbers with one absolute difference
- Count the subarrays having product less than k