- 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
- Pythagorean Triplet
- Nth Fibonacci Number
- Sort a String
- Strong Number
- Weird Number
- Print the Kth Digit
- Doubling the value
- Majority Element
- Sieve of Eratosthenes
- Shortest path from 1 to n
- Amend The Sentence
- Count possible triangles
- Dice throw
- Rotate Array
- Permutations of a given string
- Parity of unsigned integer
- 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
- Number of paths
- 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
- Odd Divisors
- Greater on right side
- Immediate Smaller Element
- Count zero
- Perfect Squares in a Range
- 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
- Pairs of prime number
- Minimum difference pair
- Roots of Quadratic Equation
- Check if a number is power of another number
- Triangle growing downwards
- Find position of set bit
- Sum of all prime numbers between 1 and N.
- Sum of Digits Divisibility
- Maximum distance
- Maximum money
- Ways To Tile A Floor
- Absolute distinct count
- Middle of Three
- Generate Binary Numbers
- Shortest direction
- Smallest number
- Factorial Number
- Count the numbers
- Find the Odd Occurence
- Angle between hour and minute hand
- Keypad typing
- Check if given four points form a square
- Rotating an Array
- Missing ranges of numbers
- Total count
- Sum of primes
- Minimize string value
- Rotate by 90 degree
- Reverse array in groups
- Set Bits
- Count Squares
- Nth Even Fibonacci Number
- Padovan Sequence
- Missing number
- Make a Distinct Digit Array
- Reverse each word in a given string
- Encrypt the string - 1
- Replace the Bit
- Squares in a Matrix
- Find first and last occurrence of x
- Type of array
- Sum of dependencies in a graph
- Sort in specific order
- Check if two arrays are equal or not
- Form largest number from digits
- Check if string is rotated by two places
- Substrings with similar first and last characters
- Find first set bit
- Check for subsequence
- Find first repeated character
- Count even substrings
- Geek and Coffee Shop
- Index of first 1 in a sorted array of 0’s and 1’s
- Does array represent Heap
- Find the element that appears once in sorted array
- Thief trying to escape
- Last index of One
- Arranging the array
- Cyclically rotate an array by one
- Print an array in Pendulum Arrangement
- Transpose of Matrix
- First element to occur k times
- Check whether K-th bit is set or not
- Extract Maximum
- Remove Duplicates from unsorted array
- Uncommon characters
- 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
- Pair cube count
- Swap and Maximize
- Max Sum Subarray of size K
- Alternative Sorting
- Rightmost different bit
- Check set bits
- Fighting the darkness
- Quick Left Rotation
- Difficulty of sentence
- Toggle bits given range
- Stable Sort and Position
- Twice counter
- Shuffle integers
- Elements in the Range
- 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
- Count triplets with sum smaller than X
- Check perfect square
- Odd to Even
- Total number of Strings
- Minimum Distinct Ids
- Find the Highest number
- Print Matrix in snake Pattern
- Minimum number to form the sum even
- Change all even bits in a number to 0
- Anagram Palindrome
- Count digits in given number N which divide N
- Closest Number
- Transform to prime
- First and last occurrences of X
- Positive and negative elements
- Boolean String Value
- Finger Game
- Smallest number repeating K times
- String Subsequence Game
- Part Sort
- Difference between sums of odd and even digits
- Sort first half in ascending and second half in descending
- Maximum weight difference
- 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
- Longest increasing subarray
- Sums of i-th row and i-th column
- ZERO Number
- Left Rotate Matrix K times
- Sum of Digit Modified
- Count the characters
- Find k-th character in string
- Good or Bad string
- Repeated Character
- Merge two strings
- Numbers having alternate bits
- Sort String
- Find the fine
- Sort the string in descending order
- Count number of elements between two given elements in array
- Remove all characters other than alphabets
- Find the closest number
- Last index of a character in the string
- Distinct Elements in a Stream
- Product is even or odd?
- Check if strings are rotations of each other or not
- Countries at war
- Jumpy Ball
- 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
- Pattern-1
- Ishaan's Internship
- Ishaan Loves Chocolates
- Jay's Apples
- The Modulo Task
- The Penalty Shootout
- Confused pappu
- Difference series
- Multiply left and right array sum.
- Find the Number which contain the digit d
- How Many X's?
- Prime String
- Height of Heap
- Average Count Array
- Power of Four
- 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
- Implement Stack using Linked List
- Implement stack using array
- Implement Queue using Linked List
- Implement Queue using array
- Square root
- Binary Search
- Add two fractions
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Convert to Roman No
- Preorder Traversal
- Implement strstr
- C++ STL | Set 4 (stack)
- C++ STL | Set 5 (queue)
- Search a node in BST
- Equal Sum and XOR
- Remainder with 7
- Implement Atoi
- Minimum distance between two numbers
- Find triplets with zero sum
- Operating an array
- Minimum element in BST
- 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
- Maximum in Struct Array
- Queue Reversal
- Sum of Binary Tree
- Insert in Middle of Linked List
- longest substring containing '1'
- Pairwise Consecutive Elements
- Count Non-Leaf Nodes in Tree
- Mrs. S- JAVA Bits Set 1
- Product of array elements
- C++ Call by reference
- Java Interface
- Java Generic Class
- Java Collections | Set 9 (Queue)
- Start Coding
- logical Operators
- Sort and Reverse Vector
- Front to Back
- Stack designer
- Queue Designer
- Parties and seats
- Set Operations
- Sum Array Puzzle
- Start coding - C
- The new line - C
- Input/Output - C
- Comments in C
- Operators in C
- Logical operator in C
- Increment and decrement - C
- getchar and putchar - C
- Format specifier - C
- Reverse array in groups
- Binary Array Sorting
- Check if a string is Isogram or not
- Binary String

Name

Rank in Institute

#1

Courses Attended

Overall Coding Score: 3177

Monthly Coding Score: 3

Weekly Coding Score: 3

- Frequencies of Limited Range Array Elements
- Anagram
- Adding One
- Number of Unique Paths
- Wave Array
- Maximum Gap
- Pattern Searching
- Print Pattern
- Rotation
- Search in a Rotated Array
- Rectangles in N*N Board
- Squares in N*N Chessboard
- Palindrome numbers
- Subarray with least average
- Maximize Toys
- Trailing zeroes in factorial
- Non Repeating Character
- a^b(Set 2)
- Minimum number of Coins
- Sum of Middle Elements of two sorted arrays
- Good Pairs
- 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
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Pairs with difference k
- Two numbers with sum closest to zero
- Finding Number
- Maximum value in a bitonic array
- Next greater number set digits
- Finding Position
- Amount of Water
- Single Number
- Segregate even and odd nodes in a Linked List
- Does robot moves circular
- Element that appears once where every element occurs twice
- Longest Distinct characters in string
- Count distinct pairs with difference k
- Replace by X
- Is Square
- Column name from a given column number
- N meetings in one room
- Remove minimum elements
- Remove Duplicates
- Kth distance
- Addition of submatrix
- Maximum sum increasing subsequence
- Array to BST
- Facing the sun
- Triangular Number
- Max Sum without Adjacents
- Make Number Odd
- Key Pair
- Maximum Difference
- Add Binary Strings
- Product array puzzle
- Length Unsorted Subarray
- Multiply two polynomals
- Reverse Bits
- Count Smaller elements
- Lucky Number
- Swap bits
- Reach the Nth point
- Subarray with given sum
- Adjacents are not allowed
- Count numbers
- Leaders in an array
- Swap all odd and even bits
- Max rope cutting
- Count number of hops
- Equal to product
- Count pairs with given sum
- Inorder Traversal and BST
- AND operation
- Segregate 0s and 1s
- Copy Set Bits in Range
- Triplet Sum in Array
- Three Great Candidates
- K closest elements
- Reach a given score
- Next in Series
- Overlapping rectangles
- Inverted triangle of stars
- Possible paths
- Y shaped pattern
- Minimum element in a sorted and rotated array
- Search in a matrix
- Value of polynomial
- Number Of Open Doors
- Faithful Numbers
- Cross character
- Day of the week
- Number of 1's in smallest repunits
- Chinky and diamonds
- Number of subsets and mean
- Shop in Candy Store
- Check If two Line segments Intersect
- Largest number possible
- Generate binary string
- Arrange the Balls
- Missing element of AP
- Count the Zeros
- 0 - 1 Knapsack Problem
- Longest Common Increasing Subsequence
- Pangram Strings
- Number of ways to find two numbers
- Cutted Segments
- Smallest number subset
- Game of Death in a circle
- Power of Numbers
- Perfect Numbers
- Count number of substrings
- Product of two digit numbers
- Permutation with Spaces
- Element appearing once
- Equilibrium point
- Floor in a Sorted Array
- Buildings receiving sunlight
- Finding Profession
- Maximize Dot Product
- Max value
- Flip Bits
- Finding the numbers
- Happy Number
- LCS with permutations
- Pairs with specific difference
- Deficient Number
- Count Pairs in an Array
- Sphenic Number
- Min sum formed by digits
- Move all negative elements to end
- String Manipulation
- Help Nobita
- Chocolate Distribution Problem
- Binary Tree K level sum
- Exit Point in a Matrix
- 1[0]1 Pattern Count
- Knapsack with Duplicate Items
- Sum of k smallest elements in BST
- Reverse Coding
- Flood fill Algorithm
- Decode the pattern
- Longest K unique characters substring
- Roman Number to Integer
- Largest Product Pallindrome
- Maximum no of 1's row
- Drive the car
- Friends Pairing Problem
- Decode the string
- Gold Mine Problem
- Smallest subarray with sum greater than x
- Game of XOR
- Find Nth root of M
- Find largest word in dictionary
- Love For The Twins
- Sum of all substrings of a number
- Minimum Operations
- Find all pairs with a given sum
- Check if frequencies can be equal
- Shortest distance in infinite tree
- Largest zigzag sequence
- Palindromic patitioning
- Matrix Game - 1
- Jon and string
- Race in Fooland
- Excel Sheet | Part - 2
- Geeky Year
- Largest Fibonacci Subsequence
- Longest Palindromic Subsequence
- K-th element of two sorted Arrays
- Evaluation of Postfix Expression
- Common elements
- Rod Cutting
- Fill array with 1's
- Element with left side smaller and right side greater
- Sequence of Sequence
- Transitive closure of a Graph
- Array Subset of another array
- Karatsuba Algorithm
- Count the paths
- First negative integer in every window of size k
- Game with String
- Four Elements
- Paths to reach origin
- Subarray with 0 sum
- Get Minimum Squares
- Nth catalan number
- Count number of words
- Group Anagrams Together
- Sum equals to Sum
- Find Pair Given Difference
- Carry counter
- Count the elements
- Second most repeated string in a sequence
- Count all possible paths from top left to bottom right
- Shortest Common Supersequence
- Sort the given array after applying the given equation
- Assign Mice Holes
- Large number division
- Rearrange a string
- Minimum Number in a sorted rotated array
- Sort by Absolute Difference
- Bird and maximum fruit gathering
- Sub-Array sum divisible by K
- Number of Groups
- Primes sum
- Swapping pairs make sum equal
- Decode It
- String Ignorance
- Minimum number of deletions and insertions.
- Minimum steps to minimize n as per given condition
- Jumping Caterpillars
- Subset with sum divisible by m
- Count of strings that can be formed using a, b and c under given constraints
- Nth item through sum
- Count binary strings
- Longest subsequence-1
- Maximum sum Problem
- String comparison
- Minimum indexed character
- Minimum Cost To Make Two Strings Identical
- High-effort vs. Low-effort
- Longest Repeating Subsequence
- Stickler Thief
- Remaining String
- Power Set
- Even and odd elements at even and odd positions
- Merging two unsorted arrays in sorted order
- Transform the array
- Even Fibonacci Numbers Sum
- Sum of Lengths of Non-Overlapping SubArrays
- Chocolate Station
- Common Subsequence
- K-Ary Tree
- Right angled triangles
- Boundary Elements of Matrix
- Count the triplets
- Star elements
- Special Numbers
- Sum of two large numbers
- Check if a Integer is power of 8 or not
- Prime number of set bits
- Pairs with Positive Negative values
- Numbers containing 1, 2 and 3
- Non-Repeating Element
- Longest common prefix
- Rearrange array such that even positioned are greater than odd
- Sexy Primes
- Nearest multiple of 10
- Remove leading zeros from an IP address
- Reorganize The Array
- Check if array contains contiguous integers with duplicates allowed
- Maximum height of the staircase
- Easy string
- Count pairs Sum in matrices
- C++ Matrix Rotation by 180 degree
- 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
- Arya's Long String
- Ishaan and Sticks
- Find the closest pair from two arrays
- Print Bracket Number
- Lucky Ishaan
- Eulerian Path in an Undirected Graph
- Save Ironman
- Fitting The Array
- Print adjacency list
- Reverse a linked list
- Occurence of an integer in a Linked List
- Pairwise swap elements of a linked list
- Given a linked list of 0s, 1s and 2s, sort it.
- Add 1 to a number represented as linked list
- linked list of strings forms a palindrome
- 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
- Insertion Sort
- Merge Sort
- Quick Sort
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Maximum Width of Tree
- Diameter of Binary Tree
- Check for Balanced Tree
- Heap Sort
- Nth node from end of linked list
- Left View of Binary Tree
- 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
- Reverse alternate levels of a perfect binary tree
- 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
- 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
- Binary Tree to BST
- K-Palindrome
- Max sum in the configuration
- Unique rows in boolean matrix
- Is Binary Tree Heap
- Validate an IP Address
- Distinct occurrences
- Sorted subsequence of size 3
- Josephus problem
- Expression Tree
- Maximum Difference
- Check if Linked List is Palindrome
- Longest Consecutive Subsequence
- Generate Grey Code Sequences
- Check whether BST contains Dead End
- Kth largest element in BST
- Find duplicates in an array
- Count distinct elements in every window
- Max Level Sum in Binary Tree
- Special Stack
- Root to leaf paths sum
- Three way partitioning
- Sort a stack
- Longest consecutive sequence in Binary tree
- Print Common Nodes in BST
- Level order traversal
- Peak element
- Inorder Successor in BST
- Delete nodes greater than k
- 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
- Ancestors in Binary Tree
- Sum of leaf nodes in BST
- Root to Leaf Paths
- Maximum path sum
- Counting Sort
- Max and min element in Binary Tree
- Perfect Binary Tree
- Counting elements in two arrays
- Reverse a string using Stack
- Linked List that is Sorted Alternatingly
- Full binary tree
- Symmetric Tree
- Construct Tree from Inorder & Preorder
- Vertical sum
- Count Pairs whose sum is equal to X
- Check if Tree is Isomorphic
- Predecessor and Successor
- Diagonal Sum In Binary Tree
- Find length of Loop
- Deletion and Reverse in Linked List
- Normal BST to Balanced BST
- Linked List Matrix
- 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
- 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
- ZigZag Tree Traversal
- Sum of Leaf Nodes at Min Level
- Tilt of Binary Tree
- Move all zeros to the front of the linked list
- Delete middle element of a stack
- Vertical Width of a Binary Tree
- Rotate doubly Linked List
- 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
- Even Subsets - Java
- Consonants and Vowels check - Java
- Predict the Column - Java
- Magic in CPP
- Swap the objects
- Structs and Objects
- Learning Structs
- BigInteger Multiply
- BigInteger mod
- Find the Frequency
- Back to Front
- Pair Sum in Vector
- Get min at pop
- Deque Implementations
- Min Heap implementation
- Frequency Game
- Multimap Operations
- Pair Sum Existence- Revisited
- Mother Vertex
- Print adjacency list
- Subarray with 0 sum
- Winner of an election
- Subarray range with given sum
- The Modified String
- Reverse words in a given string
- Minimum indexed character
- Pangram Checking

- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Complement
- Sum Of Prime
- Rank The Permutations
- 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
- Count of n digit numbers whose sum of digits equals to given sum
- Edit Distance
- Magic Triplets
- nCr
- Maximum Rectangular Area in a Histogram
- Longest Span with same Sum in two Binary arrays
- Min Coin
- Consecutive 1's not allowed
- Count of Subarrays
- Longest Even Length Substring
- Path in Matrix
- Trapping Rain Water
- String formation from substring
- Count Numbers in Range
- 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
- Stock buy and sell
- Largest Number formed from an Array
- Number of paths in a matrix with k coins
- 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
- Concatenation of Zig-Zag String in ‘n’ Rows
- 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
- Power of Largest Prime
- Sum of Query II
- Form a palindrome
- Inversion of array
- Preorder to Postorder
- Maximum length Bitonic Subarray
- Length of the longest substring
- Smallest number on left
- Longest consecutive subsequence
- Largest subsquare surrounded by ‘X’
- Maximum Sum Path in Two Arrays
- Stock span problem
- Convert an array to reduced form
- M-Coloring Problem
- 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
- Maximum Sum Subsequence of length k
- Preorder Traversal and BST
- Card Rotation
- Longest Arithmetic Progression
- Subsets with XOR value
- Jumbled Strings
- Palindromic Strings
- Max possible amount
- Cost of Sweets
- Bleak Numbers
- Super Primes
- Crazy Equations
- Number of pairs
- Smallest Sub-Array
- Coin Piles
- Maximum XOR subset
- Maximum Profit
- Minimum sum
- Digit multiplier
- Circle of strings
- Nodes at even distance
- Build the smallest
- Queries on Strings
- Your Social Network
- Largest number in K swaps
- Special Matrix
- Minimize the heights
- Lots of Work
- Next larger element
- Composite and Prime
- Taking 1 out of 3 consecutives
- X Total Shapes
- Total Decoding Messages
- Unique BST's
- Distinct Transformations
- Subsets
- Combination Sum
- Combination Sum - Part 2
- Word Break
- Longest Prefix Suffix
- Kth smallest element
- Divisible by 8
- Sum of Subarrays
- Count Divisors of Factorial
- Maximum calorie
- Prime Factors and their Powers
- Find the pattern
- 7 Segment Display
- Longest Common Substring
- Easy Query
- Count Palindrome Sub-Strings of a String
- Rotate and delete
- Negative weight cycle
- Hamiltonian Path
- Sonam Bewafa asks questions
- Count the Number of Full Binary Trees
- Minimums in Array
- Mathematical manipulation
- Snake and Ladder Problem
- Recursively remove all adjacent duplicates
- Shortest Source to Destination Path
- Divisibility tree
- 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
- Count of AP Subsequences
- Word Boggle
- Form coils in a matrix
- Max absolute difference
- Print leaf nodes from preorder traversal of BST
- Reverse Delete Algorithm for Minimum Spanning Tree
- Distance of nearest cell having 1
- Is Sudoku Valid
- Find whether path exist
- Largest prime factor
- Check Mirror in N-ary tree
- 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
- Kth Smallest Factor
- Count subsequences of type a^i b^j c^k
- Stepping Numbers
- Find the largest number
- Convex Hull
- 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
- Smallest distinct window
- James Bond and Divisors
- 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
- Geek collects the balls
- Largest Sum Subarray of Size at least K
- Smallest Positive missing number
- Mobile numeric keypad
- Pyramid form
- Maximum sum Rectangle
- Maximum Intervals Overlap
- Word Wrap
- Perfect Sum Problem
- Longest Path in a matrix
- Array Pair Sum Divisibility Problem
- Job Sequencing Problem
- Top k numbers in a stream
- Page Faults in LRU
- Count possible ways to construct buildings
- Firing employees
- Image Multiplication
- N Digit numbers with digits in increasing order
- Rotten Oranges
- Prime factorization and geek number
- Modify array to maximize sum of adjacent differences
- Sisters and coins
- Probability of Knight
- Two water Jug problem
- Longest repeating and non-overlapping substring
- Count digit groupings of a number
- CamelCase Pattern Matching
- Longest Common Prefix in an Array
- Minimum cost to fill given weight in a bag
- Count even length
- Steps by Knight
- Median In a Row-Wise sorted Matrix
- In First But Second
- Smith Number
- Mail System Design
- Row with minimum number of 1's
- Numbers with alternative 1's
- Count of sum of consecutives
- 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
- Maximum bitonic subarray sum
- Maximum Tip Calculator
- Maximum GCD Pair
- Next higher number in one swap
- Count divisors of product of array elements
- Print N-bit binary numbers having more 1’s than 0’s
- Next higher palindromic number using the same set of digits
- Find the last digit when factorial of A divides factorial of B
- Save Your Life
- Last two digits of Fibonacci
- The Infinite String
- Pizza Mania
- Count of Palindromic substrings in an Index range
- Mike and Photographic Memory
- Fill the Tank
- Party in Town
- Lazy Pasha
- Longest subarray with sum divisible by K
- Subarrays with equal 1s and 0s
- Longest Sub-Array with Sum K
- Pasha and Primes
- Beautiful SubSequence
- The Tiny Miny
- Sum of XOR of all pairs
- Marks of PCM
- Pass the semester
- String Conversion
- Nitika and her queries
- Geek and Strings
- Container with most water
- Save Gotham!
- Buying Vegetables
- The Painter's Partition Problem
- Shreyansh and his bits
- Minimum swaps and K together
- Maximize the sum of selected numbers from an array to make it empty
- Find the N-th character
- Large Factorials
- Lucky alive person in a circle
- count special palindromic
- Rat Maze With Multiple Jumps
- Construct binary palindrome by repeated appending and trimming
- Smaller on Left
- A difference of values and indexes
- Possible paths between 2 vertices
- Optimal Strategy For A Game
- 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
- 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 a directed graph
- Detect cycle in an undirected graph
- Min distance between two given nodes of a Binary Tree
- Maximum difference between node and its ancestor
- The Celebrity Problem
- Topological sort
- 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
- Strongly Connected Components (Kosaraju's Algo)
- Rat in a Maze Problem
- Bipartite Graph
- 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
- Merge k Sorted Arrays
- Length of longest palindrome in linked list
- Print Nodes having K leaves
- Duplicate subtree in Binary Tree
- Find the missing no in string
- Smallest range in K lists
- k-th smallest element in BST
- Polynomial Addition
- Euler Circuit in a Directed Graph
- Euler circuit and Path
- Merge Sort on Doubly Linked List
- Binary Tree to CDLL
- Find a pair with given target in BST
- 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
- Maximum path sum from any node
- 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
- 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
- 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)

- 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
- Create your own Calculator
- nCr mod M | Part 1
- Number Formation
- Boolean Parenthesization
- Longest valid Parentheses
- Word Break - Part 2
- Minimum Cost Path
- N-Queen Problem
- Solve the Sudoku
- Strongly connected component (Tarjans's Algo)
- Generalised Fibonacci numbers
- Find median in a stream
- Travelling Salesman Problem
- Max Circular Subarray Sum
- Minimum number of elements
- 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
- Bike Racing
- Adventure in a Maze
- Closest Palindrome
- Kill Captain America
- Minimum number to make median X
- 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