- Check for Binary
- Replace all 0's with 5
- Print the pattern | Set-1
- Toeplitz matrix
- Palindromic Array
- C++ Pointers ( Incrementing a variable) | Set 1
- C++ Functions (Sum of numbers) | Set 1
- Print alternate elements of an array
- Java Inheritance
- Java Abstract keyword
- Java Override
- Java Classes Introduction
- Sum of array elements
- Reverse an Array
- Maximum and Minimum Of Array Elements
- Sum Of Digits
- Pascal Triangle
- Alone in couple
- Sum of Array
- Odd or Even
- Number of factors
- Leap Year
- Palindrome String
- Armstrong Numbers
- Greatest of three numbers
- Swap two numbers
- Multiply 2 matrices
- Sum of Series
- Series AP
- Small Factorial
- Addition of Two Numbers
- Print Elements of Array
- Area of Rectange, Right Angled Triangle and Circle
- Binary number to decimal number
- Vowel or Not
- Print table
- Simple Interest
- Compound Interest
- Sum of Digit is Pallindrome or not
- Surface Area and Volume of Cuboid
- Automorphic Number
- Sum of an AP
- Sum of GP
- Print 1 to n without using loops
- nPr
- Count Alphabets
- Fascinating Number
- Remove characters from alphanumeric string
- Pattern Printing
- Remove Spaces
- Value equal to index value
- Decimal to any base conversion
- Check if a number is Perfect Square
- Number Pattern
- Swap kth elements
- Second Largest
- Reverse digits
- Smaller and Larger
- Average
- Binary representation
- Check if an array is sorted
- Pattern of Strings
- Triangle shrinking downwards
- Palindrome
- Remainder Evaluation
- 12 hour clock addition
- 12 hour clock subtraction
- 12 hour clock Multiplication
- Lower case to upper case
- Cube root of a number
- Find the median
- Mean
- Number of divisors
- Perfect Number
- Multiples Power
- Multiply Array
- Diagonal sum
- Combinational Logic
- At least two greater elements
- Compete the skills
- Count of camel case characters
- Find difference between sum of diagonals
- Print the left element
- C++ Loops | Set 1 (Print a string N times)
- Distance between 2 points
- Sum of elements in a matrix
- Reversing the vowels
- Sum Palindrome
- Display longest name
- C++ Operators | Set 1 (Arithmetic)
- Reverse a String
- C++ Hello World
- C++ if-else (Decision Making)
- C++ Arrays (Sum of array) | Set 1
- C++ Strings
- C++ Array (print an element) | Set 2
- C++ Switch Case Statement
- C++ Operators (Relational) | Set 2
- Floyd's triangle
- GCD of two numbers
- Largest Element in Array
- Addition of two square matrices
- Identical Matrices
- C++ Data Types
- Time to Words
- Convert time from 12 hour to 24 hour format
- Java Hello World
- Java if-else (Decision Making)
- Java Switch Case statement
- Java loops | Set 1
- Java Arrays | Set 1
- Java Strings | Set 1
- Count of smaller elements
- Split Strings
- Count Digits
- Find Index
- Even Odd Sum
- Count type of Characters
- Number of Diagonals
- Decimal to binary
- Check String
- Change the string
- Sum of diagonals
- Extract the integers
- Check if two given circles touch each other
- Remove vowels from string
- Upper case conversion
- Sum of odd and even elements
- Sum of AP series
- Perfect Arrays
- Full Prime
- Convert a list of characters into a String
- Determine focal length of a spherical mirror
- The dice problem
- Find n-th term of series 1, 3, 6, 10, 15, 21
- C++ Input / Output
- Power of Pow | Even Number
- Power of Pow | Odd Numbers
- Java Input/Output
- Java Reverse a String
- Java Delete alternate characters
- Java Substring
- Java Convert String to LowerCase
- C++ 2-D Arrays | Set-1
- Java Basic Data Types
- Java Operators(Relational) | Set - 2

Name

Soul Hacker

Organization

Courses Attended

Overall Coding Score: 1814

Monthly Coding Score: 2

Weekly Coding Score: 0

- Print Linked List elements
- Count nodes of linked list
- Node at a given index in linked list
- Power of Four
- Size of Binary Tree
- Inorder Traversal
- Bubble Sort
- Count Leaves in Binary Tree
- Selection Sort
- Height of Binary Tree
- Finding middle element in a linked list
- Circular Linked List
- Postorder Traversal
- Implement stack using array
- Implement Queue using array
- Square root
- Binary Search
- Remove duplicate elements from sorted Array
- Add two fractions
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Largest product
- Third largest element
- Preorder Traversal
- C++ STL | Set 1 (vector)
- C++ STL | Set 3 (map)
- Middle Pattern
- C++ STL | Set 6 (set)
- Search a node in BST
- Equal Sum and XOR
- C++ STL | Set 7 (unordered map)
- C++ STL | Set 8 (unordered set)
- Java Collection | Set 4 (TreeMap)
- Implement Atoi
- Java Collection | Set 5 (LinkedHash Set)
- Find Number of Numbers
- Find triplets with zero sum
- Linked List Insertion
- Minimum element in BST
- Linked List Length Even or Odd?
- Delete Alternate Nodes
- Identical Linked Lists
- Maximum in Struct Array
- Queue Reversal
- Sum of Binary Tree
- longest substring containing '1'
- Count Non-Leaf Nodes in Tree
- C++ STL List
- C++ STL Deque
- C++ Classes Introduction
- Mrs. S- JAVA Bits Set 1
- Product of array elements
- C++ Inheritance introduction
- C++ Call by reference
- Java Interface
- Java Collections | Set 8 (TreeSet)
- Java Generic Class
- Java Collections | Set 9 (Queue)
- Start Coding
- logical Operators
- Sort and Reverse Vector
- Front to Back
- Stack designer
- Queue Designer
- Sum the common elements
- Set Operations
- Map Operations
- Start Coding - Python
- Sum Array Puzzle
- Concatenating Strings - Python
- Strongest Neighbour
- Array insert at end
- Converges to OneZero
- Performance in Class
- Find extra character
- Complete Bubble Sort - C
- Print the string - C
- While loop in C
- Jump through While - C
- Intro to Arrays - C
- MIN_MAX_Sum in array - C
- Pointer arithmetic - C
- Dynamic allocation in C
- Reallocate memory - C
- Self referential structures in C
- Start coding - C
- The new line - C
- Input/Output - C
- Comments in C
- string input and iteration
- Return sum array
- Dynamic allocation of 2d array
- getchar and putchar - C
- Format specifier - C
- Call by reference
- Initializing pointers
- Sum of diagonals
- Double pointer - C
- Armstrong number
- Reverse the number
- Check whether K-th bit is set or not
- Quadratic Equation Roots
- Count total set bits
- Power of 2
- Tower Of Hanoi
- Count possible triangles
- Adding two matrices
- Sum of upper and lower triangles
- Multiply the matrices
- Determinant of a Matrix
- Check if a string is Isogram or not
- Repeating Character - First Appearance Leftmost
- Addition Under Modulo
- Multiplication Under Modulo
- Search an Element in an array
- Maximum Occuring Character
- Binary String
- Consecutive elements
- Factorial
- Prime Number
- LCM And GCD
- GCD of Array
- Repetitive Addition Of Digits
- Searching a number
- Power of 2
- Series GP
- 2's Complement
- Sort The Array
- Celsius to Fahrenheit Conversion
- Pythagorean Triplet
- Nth Fibonacci Number
- Sort a String
- Strong Number
- Weird Number
- Print the Kth Digit
- Majority Element
- Sieve of Eratosthenes
- Count possible triangles
- Rotate Array
- Permutations of a given string
- Parity of unsigned integer
- Check if the number is Fibonacci
- Missing number in array
- Rock Paper Scissors!
- Array of alternate +ve and -ve no.s
- Swap two nibbles in a byte
- Maximum product of two numbers
- Numbers containing 0's from 1 to N
- Segregate Even and Odd numbers
- Count total set bits
- Number is sparse or not
- Bit Difference
- Count numbers containing 4
- Convert from any base to decimal
- Reverse sub array
- Odd Divisors
- Greater on right side
- Immediate Smaller Element
- Perfect Squares in a Range
- nth digit of Fibonacci
- Sum of distinct elements
- Binary Array Sorting
- Intersection of two arrays
- Union of two arrays
- Convert array into Zig-Zag fashion
- Remove character
- Number of occurrence
- Maximum repeating number
- k largest elements
- Student record
- Minimum difference pair
- Roots of Quadratic Equation
- Check if a number is power of another number
- Remove recurring digits
- Evaluate the x + a = b statement
- Triangle growing downwards
- Find position of set bit
- Sum of all prime numbers between 1 and N.
- Pattern Jumping
- Jumping Geek
- Sum of Digits Divisibility
- Maximum distance
- Maximum money
- Absolute distinct count
- Middle of Three
- Generate Binary Numbers
- Factorial Number
- Count the numbers
- Find the Odd Occurence
- Angle between hour and minute hand
- Keypad typing
- Maximum Possible Sum of Products
- Rotating an Array
- Total distance travelled in an array
- Sum of Products
- Number of Integer solutions
- Even occurring elements
- Missing ranges of numbers
- Base Conversion
- Total count
- Compare two Large Numbers
- The Lazy Caterer's Problem
- Matching Pair
- Product of Complex Numbers
- How many pizzas ?
- Sum of primes
- Merge and Sort
- Composite Series
- Rotate by 90 degree
- Reverse array in groups
- The AND Gate
- Maximum Area
- The OR Gate
- Multiple in Table Tennis
- 1's Complement
- The XOR Gate
- Good String
- Mega Sale
- Set Bits
- Repeated sum of digits
- Professor and Parties
- Longest Consecutive 1's
- Sum of divisors
- Common Divisors
- Count Squares
- Square Divisors
- Perfect Reversible String
- Max-Min conversion
- Nth Even Fibonacci Number
- Count Sorted Rows
- Sum of Consecutives
- Disarium Number
- Pairs with given XOR
- Padovan Sequence
- Juggler Sequence
- Distance and Displacement
- Elements before which no element is bigger
- Minimize the sum of product
- Missing number
- Find Substring from last of the Given String
- Make a Distinct Digit Array
- String Reversal
- Reverse each word in a given string
- Permutations in array
- String with numbers at its end
- Starting Point
- Encrypt the string - 1
- Replace the Bit
- Sum of product of x and y with floor(n/x) = y
- Form a Triangle
- Flying Jet
- Metro Problem
- King's War
- Check squares
- Find duplicates under given constraints
- Find first and last occurrence of x
- Type of array
- Ladoo problem
- Sum of dependencies in a graph
- Stuffs Division
- Sort in specific order
- Check if two arrays are equal or not
- Form largest number from digits
- Sherlock a Detective
- Check if string is rotated by two places
- Invert the Bits
- Check if divisible by 11
- Unique Numbers
- Maximum sum of hour glass
- XOR of all elements
- Check if divisible by 4
- Learning Output
- Substrings with similar first and last characters
- Rahul lucky-unlucky
- Check if divisible by 36
- Find first set bit
- Minimize sum of alternate product
- Check for subsequence
- Check if the door is open or closed
- Find first repeated character
- Sort the fest
- XOR play
- Count even substrings
- Tidy Number
- Check if date is valid
- Message decoding
- Geek and Coffee Shop
- A guy with a mental problem
- Fake Profile
- Check if divisible by 5
- Wrong Ball
- The Muskteers
- Index of first 1 in a sorted array of 0’s and 1’s
- Strong Numbers
- Does array represent Heap
- Missing number in shuffled array
- Find the element that appears once in sorted array
- Last index of One
- Arranging the array
- Cyclically rotate an array by one
- Sum Triangle for given array
- Print an array in Pendulum Arrangement
- Tracks
- Transpose of Matrix
- First element to occur k times
- Check whether K-th bit is set or not
- Length of Last word
- Extract Maximum
- Remove Duplicates from unsorted array
- Java Operators(Arithmetic) | Set 1
- Uncommon characters
- Minimum sum of two elements from two arrays
- Sum of numbers in string
- Find the smallest and second smallest element in an array
- Find minimum and maximum element in an array
- Find second largest element
- URLify a given string
- Multiple of X closest to N
- Print first letter of every word in the string
- Rotate Bits
- Find Smallest Missing in Sorted
- Sorted matrix
- Sum Terms Nth Row
- Smallest power of 2 greater than or equal to n
- Area of a triangle
- Pair cube count
- All numbers with specific difference
- Count pair sum
- First Come First Serve
- K-th distinct element
- Friendly Array
- Balanced Array
- Swap and Maximize
- Minimum Difference among K
- Check if a string is Isogram or not
- Check Binary String
- Krishnamurthy number
- Check Arithmetic Progression
- Line passing through 2 points
- Sort the Half Sorted
- Fibonacci in the array
- Alternative Sorting
- Rightmost different bit
- Count numbers divisible by M
- Check set bits
- Set kth bit
- Fighting the darkness
- Sorting Employees
- Count Pairs Odd Xor
- Break Numbers[Duplicate problem]
- Quick Left Rotation
- Total digits
- Toggle bits given range
- Twice counter
- Shuffle integers
- Elements in the Range
- Adam Number
- Min value of x
- First K natural numbers
- Print first n Fibonacci Numbers
- Remove repeated digits in a given number
- Maximum Integer Value
- Sum of distinct elements for a limited range
- Linear Diophantine Equations
- Check perfect square
- Total number of Strings
- GCD, LCM and Distributive Property
- Find the Highest number
- Minimum sum of factors
- Print Matrix in snake Pattern
- Twisted Prime Number
- Minimum number to form the sum even
- Check an Integer is power of 3 or not
- Change all even bits in a number to 0
- Anagram Palindrome
- Count digits in given number N which divide N
- Closest Number
- Pronic Number
- Transform to prime
- First and last occurrences of X
- Positive and negative elements
- Boolean String Value
- Empty The Tank
- Just One Mismatch
- Finger Game
- Smallest number repeating K times
- Rearrange the array
- Part Sort
- Ceil The Floor
- Difference between sums of odd and even digits
- Sort first half in ascending and second half in descending
- Tough Competitors
- Mind Game
- Anshuman's Favourite Number
- Number of unique rectangles
- The Counting Game !!
- XOR Count Zero and One
- Repated Sum and then Multiply
- Absolute Difference of 1
- Numbers with 0 as a digit
- Remove common characters and concatenate
- Numbers having two adjacent set bits
- Shortest un-ordered subarray
- Swapping Triangles
- XOR Game
- Longest increasing subarray
- Make the hit in power game !
- Sums of i-th row and i-th column
- Repeated I.Ds
- ZERO Number
- Sum of upper and lower triangles
- Binary representation of previous number
- Left Rotate Matrix K times
- Count number of digits after decimal
- Rectangle Number
- Sum of Digit Modified
- Count the characters
- Binary representation of next number
- Find k-th character in string
- Good or Bad string
- Finding Dory
- Repeated Character
- Merge two strings
- Numbers having alternate bits
- Red OR Green
- Sort String
- First and last Bit
- Maximize OR
- Difference between highest and lowest occurrence
- Minimum product pair
- Product of factors of number
- Find unique element
- An Easy problem
- Sum of first n terms
- Generate all cyclic permutations of a number
- G.F Series
- Find the fine
- Three distinct factors
- Rearrange string as alternate x and y occurences
- Number of compositions of a natural number
- Count the numbers satisfying (m + sum(m) + sum(sum(m))) equals to N
- Find all factorial numbers less than or equal to N
- Minimum Product of k Integers
- Maximize ∑arr[i]*i of an Array
- One's Complement
- Set the rightmost unset bit
- The Cycle Game
- Sort the string in descending order
- Find N-th term in the series
- Sum of Digits Prime/Non-Prime
- Sum of all subsets formed by first N natural numbers
- Count number of elements between two given elements in array
- Remove all characters other than alphabets
- Ishwar and his proposals
- Weak Maths
- Stuti and her Problem
- Perfect Array
- Find the closest number
- Sandwiched_Vowels
- Even-Odd turn game
- Narcissistic number
- Corner Digits
- Series X1
- Minimal Summing Up
- Last index of a character in the string
- Distinct Elements in a Stream
- Special Series Sum
- Pattern for Reverse Character Bridge
- Check for three consecutive numbers
- Special Odd Series Sum
- Maximum triplet sum in array
- Check whether two numbers differ at one bit position only
- Floating point number even or odd
- Find X and Y in Linear Equation
- Squares Difference
- Modulus of two double numbers
- Snake Case
- Semi Prime
- Factors Sum
- Check if the number is balanced
- Count the characters in each word in a given sentence
- Find sum of even factors of a number
- The problem of identical arrays
- Weight of strings
- Number of positive integral solutions
- Numbers having alternate bits in range 1 to n
- Extract the phone number
- Human and the tower
- The Remaining Cake
- Tiger Zinda Hai
- Product is even or odd?
- Remove consonants from a string
- Earthquake and the Paint Shop
- C++ Basic Data types
- C++ A Speed Breaker
- Sum of fifth powers of the first n natural numbers
- C++ Nega Bit
- Check if actual binary representation of a number is palindrome
- Compare two fractions
- Trimorphic Number
- C++ Corresponding position in the two strings that hold exactly the same characters.
- Product of maximum in first array and minimum in second
- Palindrome in both Decimal and Binary
- Most frequent word in an array of strings
- Check if strings are rotations of each other or not
- Sophie Germain Prime
- Reading books
- Encoding names
- Crazy String
- Set all odd bits
- Message Spreading
- Convert the string
- Is digital root of N a prime?
- Making elements distinct
- C++ Function Overloading
- C++ Sets
- Azad and Chocolates
- The amazing number
- Countries at war
- Jumpy Ball
- Sum of all sub-sequences of a number
- Last duplicate element in a sorted array
- Perfect Square String
- Sum of f(a[i], a[j]) over all pairs in an array of n integers
- Inverse Permutation
- Game with nos
- Play With OR
- Why is Melody so chocolaty?
- Prime number validation-JAVA regex
- Pattern-1
- Ishaan's Internship
- Ishaan Loves Chocolates
- Cricket Average
- Midori and chocolates
- Ishaan's Sum Problem
- Ishaan's Weight
- Dull Jack
- Chocolate lengths
- Factor OR Multiple
- Jay's Apples
- Program for length of the longest word in a sentence
- String of Commons
- The Modulo Task
- Riya's Test
- The Penalty Shootout
- Number Series
- GOT TV series
- The Number System
- Confused pappu
- Difference series
- Multiply left and right array sum.
- Gray Code
- Gray to Binary equivalent
- Maximum Perimeter of Triangle from array
- Doctors Clinic
- How Many X's?
- Prime String
- Find The Sequence
- Height of Heap
- Fibonacci to N
- Average Count Array
- The Spider Steps
- Java Anagram Strings
- Java Date and Day
- Java Collection | Set 1 (ArrayList) Part-1
- Java Collection | Set 3 (HashMap) Part-1
- Java 1-d and 2-d Array
- Java Iterator
- Tower of Hanoi
- Multiply the matrices

- Reverse a linked list
- Detect Loop in linked list
- Insertion Sort
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Two Mirror Trees
- Maximum Width of Tree
- Diameter of Binary Tree
- Check for Balanced Tree
- Nth node from end of linked list
- Left View of Binary Tree
- Sum Tree
- Transform to Sum Tree
- 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
- Lowest Common Ancestor in a Binary Tree
- 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
- Lowest Common Ancestor in a BST
- Largest subarray of 0's and 1's
- Level order traversal Line by Line
- Print BST elements in given range
- Largest subarray with 0 sum
- Minimum Depth of a Binary Tree
- Odd even level difference
- Leaf at same level
- Is Binary Tree Heap
- Validate an IP Address
- Josephus problem
- Java Collection | Set 1 (ArrayList) Part-2
- Java Collection | Set 2 (Set)
- You and your books
- Expression Tree
- Java Collection | Set 3 (HashMap) Part-2
- Kth largest element in BST
- Count distinct elements in every window
- Max Level Sum in Binary Tree
- Root to leaf paths sum
- Sort a stack
- Print Common Nodes in BST
- Level order traversal
- Peak element
- Inorder Successor in BST
- Delete nodes greater than k
- Index Of an Extra Element
- Convert Ternary Expression to Binary Tree
- Ancestors in Binary Tree
- Level of a Node in Binary Tree
- Sum of leaf nodes in BST
- Root to Leaf Paths
- Maximum path sum
- Max and min element in Binary Tree
- Perfect Binary Tree
- Reverse a string using Stack
- XOR of a given range
- Full binary tree
- Symmetric Tree
- Vertical sum
- Next Right Node
- Check if Tree is Isomorphic
- Depth of node
- Predecessor and Successor
- Maximum Node Level
- Children Sum Parent
- Diagonal Sum In Binary Tree
- Find length of Loop
- Deletion and Reverse in Linked List
- Leaf under budget
- Reverse First K elements of Queue
- Remove Half Nodes
- Height of Spiral Tree
- Sum of Leaf Nodes
- Sum of Right Leaf Nodes
- Sum of Left Leaf Nodes
- Deletion in a Binary Tree
- Nodes at Odd Levels
- Closest Neighbor in BST
- Brothers From Different Roots
- Sum of the Longest Bloodline of a Tree
- Exchange the Leaf Nodes
- Kth Ancestor in a Tree
- Check if two Nodes are Cousins
- ZigZag Tree Traversal
- Sum of Leaf Nodes at Min Level
- Tilt of Binary Tree
- Delete middle element of a stack
- Vertical Width of a Binary Tree
- Rotate doubly Linked List
- Java Collections | Set 7 (LinkedList)
- Java Exception Handling
- The New Line
- Data Types
- The Size of
- Taking input
- Learn to Comment
- GetLine and Ignore
- Learning to be precise
- Even Odd
- While loop- printTable
- Learning Macros
- Step by Step Condition
- Start Coding - Java
- The New Line - Java
- Precise Fomat - Java
- Count Odd Even
- Need Some Change
- Count the Specials
- Matrix Interchange
- Predict the Column
- Even Subsets
- Need Some Change - Java
- Magic in CPP
- Learning Structs
- Delete Array
- Repetitive Printing - Python
- Comment in Python
- Increment and Decrement - Python
- Mark Even and Odd - Python
- Repeat the Strings - Python
- Max and Second Max
- Sorting
- Find first set bit
- Rightmost different bit
- Factorial Of Number
- Digits In Factorial
- GP Term
- Power Of Numbers
- String Permutations
- Equilibrium point
- Leaders in an array
- Inversion of array
- Subarray with given sum
- Reversing the columns of a Matrix
- Exchange matrix columns
- Quadratic Probing in Hashing
- Print Non-Repeated Elements
- Subarray range with given sum
- Reverse words in a given string
- Pangram Checking
- Non Repeating Character
- Count Total Digits in a Number
- Digital Root
- Power Set Using Recursion
- Frequencies of Limited Range Array Elements
- Anagram
- Adding One
- Number of Unique Paths
- Wave Array
- Maximum Gap
- Rotation
- Search in a Rotated Array
- Squares in N*N Chessboard
- Palindrome numbers
- Maximize Toys
- Large Factorial
- Trailing zeroes in factorial
- Non Repeating Character
- Minimum number of Coins
- Count Odd Factors
- Sum of Middle Elements of two sorted arrays
- First Repeating Element
- Count Occurences of Anagrams
- 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
- Equal Sum and Product
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Finding Number
- Maximum value in a bitonic array
- Single Number
- Does robot moves circular
- Count increasing Subarrays
- Element that appears once where every element occurs twice
- Sum of Query I
- Remove Duplicates
- Addition of submatrix
- Sum of two numbers represented as arrays
- Facing the sun
- Max Sum without Adjacents
- Make Number Odd
- Maximum Difference
- Product array puzzle
- Reverse Bits
- Count Smaller elements
- Reach the Nth point
- Subarray with given sum
- Leaders in an array
- Swap all odd and even bits
- Count number of hops
- Equal to product
- Increment
- Inorder Traversal and BST
- Number of Days
- Special Number
- AND operation
- Segregate 0s and 1s
- Copy Set Bits in Range
- Three Great Candidates
- Reach a given score
- Overlapping rectangles
- Inverted triangle of stars
- Number Of Open Doors
- Cross the Bridge
- Count the Zeros
- Distinct absolute array elements
- 0 - 1 Knapsack Problem
- Pangram Checking
- Minimum number of swaps needed
- Perfect Numbers
- Count digits in a factorial
- Ordering of strings
- Change Bits
- The Nth Fibonnaci
- Element appearing once
- Equilibrium point
- Buildings receiving sunlight
- Finding the numbers
- Prime Factors
- Collecting Trees
- Maximize sum after K negations
- Game of cells
- Time Difference
- Lucas Number
- Equal Point in Sorted Array
- Count Pairs in an Array
- Sum of elements between k1'th and k2'th smallest elements
- Min sum formed by digits
- Help Nobita
- Maximum 0’s between two immediate 1’s
- Chocolate Distribution Problem
- Maximum Sum Bitonic Subsequence
- Knapsack with Duplicate Items
- Reverse Coding
- Roman Number to Integer
- Drive the car
- Friends Pairing Problem
- Game of XOR
- Find Nth root of M
- Sum of all substrings of a number
- Minimum Operations
- Find all pairs with a given sum
- Meta Strings
- Check if palindromic ignoring spaces
- Excel Sheet | Part - 2
- Largest Fibonacci Subsequence
- Increasing Sub Sequence
- Common elements
- Rod Cutting
- Efficiently sorting numbers in range from 0 to n^2 - 1
- Element with left side smaller and right side greater
- Array Subset of another array
- Karatsuba Algorithm
- Sum of product of all pairs
- Sort the pile of cards
- Paths to reach origin
- Subarray with 0 sum
- Nth catalan number
- Number of divisors in a given range
- Find the closest prime number to a given number
- Count the elements
- Second most repeated string in a sequence
- Reverse vowels in a given string
- Shortest Common Supersequence
- Sort the given array after applying the given equation
- Rearrange a string
- Minimum Number in a sorted rotated array
- Maximum occured integer
- String Ignorance
- Break a number
- Jumping Caterpillars
- Replace a word
- Nth item through sum
- Ways to write n as sum
- Longest subsequence-1
- Maximum sum Problem
- Minimum indexed character
- Consecutive Array Elements
- Stickler Thief
- Power Set
- Find the most frequent digit
- Compute nCr % p
- Find smallest values of x and y such that ax – by = 0
- Palindromic Primes
- Compute (a*b)%c
- Maximum number of zeroes
- Merging two unsorted arrays in sorted order
- Find maximum number
- N’th Pentagonal Number
- Primorial of a number
- Mersenne Prime
- Generate all palindromic numbers less than n
- Kth LSB
- Check if a Integer is power of 8 or not
- Maximum Height Tree
- Prime number of set bits
- Make a string from another string
- Minimum rotations to unlock a circular lock
- Find Unique pair in an array with pairs of numbers
- Maximum Volume of a Rectangular Box
- Find k-th missing element
- Sum Indexes
- Three Number Even Sum
- GeeksforGeeks New System
- Equal Sums
- Set all the bits in given range of a number
- Geek and his Tricky Series
- Cumulative frequency of count of each element in an unsorted array
- Winner of an election
- Next Happy Number
- Missing Intervals
- Non-Repeating Element
- Last seen array element
- Find the maximum number of handshakes
- Longest common prefix
- Roof Top
- Pairs which are Divisible by 4
- Maximum AND Value
- Trisha's Number
- John's Haircut
- 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
- Remove leading zeros from an IP address
- Add two numbers represented by two arrays
- Remainder of array multiplication
- Reorganize The Array
- The invariable units digit
- Word with maximum frequency
- Form a number divisible by 3 using array digits
- Check if array contains contiguous integers with duplicates allowed
- Rearrange an array such that arr[i] = i
- Even Decimal Binary String
- Cosmic Number
- Maximum height of the staircase
- Winner of an election
- Extra Perfect Numbers
- C++ Visible Numbers
- Rope Cutting
- Ease the Array
- Multiply by 11
- Amicable Pair
- Print this pattern!
- Count ways to express N as the sum of 1,3 and 4
- Numbers with prime frequencies greater than or equal to k
- Cross the hurdles: The Game
- Counts Zeros Xor Pairs
- String Modification
- Easy string
- Damon Prime
- Count pairs Sum in matrices
- C++ Matrix Rotation by 180 degree
- Swap every two bits in bytes
- 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
- Mysterious Series
- Akaash's Assignment
- Common Divisor
- English Words
- Print all bitwise subsets of a number N
- Possible Timings
- Searching in an array where adjacent differ by at most k
- The Even Array
- Shoot, Reload, Repeat
- The Modified String
- The Optimal Selection
- Minimum changes to make all substrings distinct
- Find n-th Fortunate Number
- Variation in Nim Game
- Sorting all array elements except one
- Candy Packets
- Smallest number with sum of digits as N and divisible by 10^N
- Smallest greater elements in whole array
- Connell Sequence
- Save Ironman
- Are you "Perfect"
- Print adjacency list
- Java Collections | Set 6 (Stack)
- Pair with given sum in a sorted array
- Area Manipulation
- Count 1's in binary array
- Minimum adjacent difference in a circular array
- Union of Two Sorted Arrays

- 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
- Add all greater values to every node in a BST
- Construct Binary Tree from Parent Array
- Connect Nodes at Same Level
- Diagonal Traversal of Binary Tree
- Boundary Traversal of binary tree
- Min distance between two given nodes of a Binary Tree
- Maximum difference between node and its ancestor
- Print a Binary Tree in Vertical Order
- Find the number of islands
- Serialize and Deserialize a Binary Tree
- Make Binary Tree From Linked List
- Check if subtree
- Extreme nodes in alternate order
- Remove loop in Linked List
- Max sum subarray by removing at most one element
- Number of root to leaf paths
- Find the Closest Element in BST
- Print Nodes having K leaves
- Top View of Binary Tree
- Binary Tree to CDLL
- Populate Inorder Successor for all nodes
- Foldable Binary Tree
- Leftmost and rightmost nodes of binary tree
- Node at distance
- Mirror of a given node
- Maximum path sum from any node
- Leaves to DLL
- Right Sibling in Binary Tree
- Construct Tree from Preorder Traversal
- Construct a Full Binary Tree
- Convert Level Order Traversal to BST
- Count Number of SubTrees having given Sum
- Swap Kth nodes from ends
- Implementing Floor in BST
- Implementing Ceil in BST
- Possible Words From Phone Digits
- Stock buy and sell
- Boolean Matrix Problem
- Minimum Cost of ropes
- Rat Maze With Multiple Jumps
- Count ways to reach the n'th stair
- Longest Increasing Subsequence
- Coin Change
- Kadane's Algorithm
- Excel Sheet | Part - 1
- 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)
- nCr
- Maximum Rectangular Area in a Histogram
- Min Coin
- Trapping Rain Water
- Case-specific Sorting of Strings
- Sum of bit differences
- Number of Coins
- Find Prime numbers in a range
- Stock buy and sell
- Largest Number formed from an Array
- Jumping Numbers
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Relative Sorting
- Row with max 1s
- Boolean Matrix Problem
- Design a tiny URL or URL shortener
- Inversion of array
- Stock span problem
- Is Binary Number Multiple of 3
- Possible groups
- Preorder Traversal and BST
- Bleak Numbers
- Minimum sum
- Next larger element
- Unique BST's
- Matchsticks game
- 3 Divisors
- Trie | (Insert and Search)
- Largest prime factor
- Count subsequences of type a^i b^j c^k
- K
^{th}largest element in a stream - Zero Sum Subarrays
- Smallest window in a string containing all the characters of another string
- Nearly Sorted Algorithm
- Smallest Positive missing number
- Longest Bitonic subsequence
- First Digit
- Longest Common Prefix in an Array
- In First But Second
- Row with minimum number of 1's
- Find the last digit when factorial of A divides factorial of B
- Last two digits of Fibonacci
- Leftmost Divisor
- Lazy Pasha
- Pasha and Primes
- The Fibonacci-prime number
- Marks of PCM
- Lucky alive person in a circle
- Game of Powers
- Number of possible squares
- Height Using Parent Array
- K Most occurring elements
- Nearly sorted
- Kth largest element

Published Count(57)

- Swap the closest and farthest digits
- Check if the number is balanced
- Remove leading zeros from an IP address
- Add two numbers represented by two arrays
- Remainder of array multiplication
- Convert a list of characters into a String
- Count the characters in each word in a given sentence
- Determine focal length of a spherical mirror
- The problem of identical arrays
- The invariable units digit
- Weight of strings
- Number of positive integral solutions
- Word with maximum frequency
- The dice problem
- Extract the phone number
- Human and the tower
- Rearrange an array such that arr[i] = i
- Find n-th term of series 1, 3, 6, 10, 15, 21
- Product is even or odd?
- The Fibonacci-prime number
- Sum of fifth powers of the first n natural numbers
- Check if actual binary representation of a number is palindrome
- Compare two fractions
- Trimorphic Number
- Product of maximum in first array and minimum in second
- Winner of an election
- Most frequent word in an array of strings
- Check if strings are rotations of each other or not
- Print this pattern!
- Message Spreading
- Is digital root of N a prime?
- Numbers with prime frequencies greater than or equal to k
- Cross the hurdles: The Game
- The amazing number
- Countries at war
- Jumpy Ball
- Perfect Square String
- Pair with given sum in a sorted array
- Tower of Hanoi
- Adding two matrices
- Multiply the matrices
- Exchange matrix columns
- Reversing the columns of a Matrix
- Interchanging the rows of a Matrix
- Boundary traversal of matrix
- Linear Probing in Hashing
- Quadratic Probing in Hashing
- Separate chaining in Hashing
- Stack Operations
- Removing consecutive duplicates
- Removing consecutive duplicates - 2
- Print Distinct Elements
- Count Distinct Elements
- The QuadNacci Number using DP
- Nearly sorted
- Queue Operations
- Optimal Strategy For A Game

Published Count(148)

- Learning to be precise
- logical Operators
- For Loop- primeCheck
- While loop- printTable
- Learning Macros
- Matrix Interchange
- Xoring and Clearing
- Consonants and Vowels check
- The Pattern Matcher
- The Pattern Matcher - Java
- Almost Equal -Java
- Even Subsets - Java
- Consonants and Vowels check - Java
- Xoring and Clearing - Java
- Swap the objects
- Structs and Objects
- Learning Structs
- Sort and Reverse Vector
- Front to Back
- Pair Sum in Vector
- Stack designer
- Get min at pop
- Queue Designer
- Sum the common elements
- Parties and seats
- Duplicate Elements
- Set Operations
- Map Operations
- Multiset Operations
- Multimap Operations
- Pair Sum Existence
- Pair Sum Existence- Revisited
- Dictionary Usage - Java
- Dictionary Usage 2 - Java
- Using Calendar - Java
- Taking input and typecasting - Python
- Taking input - Python
- Split the input - Python
- Comparison Operators - Python
- Logical Operators - Python
- Bitwise Operators - Python
- For loop - Python
- For Loop 2- Python
- Cat and Hat - Python
- Zero Converter - Python
- Regex - Python
- Regular Expressions 2 - Python
- String Functions I - Python
- Functions - Python
- Classes and Objects - Python
- Variable Arguments - Python
- Anonymous Functions - Python
- Who has the majority?
- Minimum and Maximum Element
- Double ended swap
- Array insert at index
- Array insert at end
- Hashing for pair - 1
- Hashing for pair - 2
- Implement Stack Using Array
- Get min at pop from stack
- Number Generation using DP
- Fibonacci Numbers - Top Down DP
- Fibonacci Numbers - Bottom Up DP
- Coin Change - Number of ways
- Coin Change - Minimum number of coins
- Kadane's Algorithm - I
- Kadane's Algorithm - II
- Longest Increasing Subsequence - Length
- Structure of a binary tree
- Inserting a node in a binary tree
- Preorder traversal of a BST
- Inorder traversal of a BST
- Postorder traversal of a BST
- Levelorder traversal of a BST
- Reversing an Array
- Operations on Stack
- Operations on Queue
- Convert Celsius To Fahrenheit
- Quadratic Equation Roots
- Factorial Of Number
- Digits In Factorial
- GP Term
- Primality Test
- Exactly 3 Divisors
- Mean And Median
- Modular Multiplicative Inverse
- Tower Of Hanoi
- Adding two matrices
- Multiply the matrices
- Interchanging the rows of a Matrix
- Reversing the columns of a Matrix
- Boundary traversal of matrix
- Exchange matrix columns
- Separate chaining in Hashing
- Linear Probing in Hashing
- Quadratic Probing in Hashing
- Count Non-Repeated Elements
- Print Non-Repeated Elements
- Winner of an election
- Check if strings are rotations of each other or not
- Repeating Character - First Appearance Leftmost
- Removing consecutive duplicates
- Removing consecutive duplicates - 2
- Nearly sorted
- Sum of Digits of a Number
- Count Total Digits in a Number
- Digital Root
- Power Using Recursion
- Fibonacci Using Recursion
- Power Set Using Recursion
- Optimal Strategy For A Game
- Addition Under Modulo
- Multiplication Under Modulo
- Print Array Elements Using Recursion
- Recursively Sum N Numbers
- Factorial Using Recursion
- The Sequence
- GCD Euclid
- Check Palindrome
- Insert In Stack
- Reverse Array Using Stack
- Middle Of Stack
- Preorder in BST
- Inorder in BST
- Postorder in BST
- Levelorder in BST
- Length of String
- Vowels in String
- Count Distinct Vowels in String
- Count Words in String
- Reverse a String
- Lowercase to Upercase
- Uppercase to Lowercase
- Panagram Checking
- Missing Characters in Panagram
- Sort Vector of Pairs
- Forward List Insert
- Maximize Number of Toys
- Distinct Sorted
- Sorted Frequency
- Vector max_element
- Vector min_element
- Vector Accumulate
- Find element in Set using Count
- Find element in Set using find
- Vector fill
- Check if Arrays are Permutations