- k largest elements
- Equal Sum and XOR
- C++ STL | Set 5 (queue)
- Find triplets with zero sum
- Count zeros in a sorted matrix
- Print all possible strings
- Linked List Length Even or Odd?
- Binary Search
- Square root
- Implement Queue using array
- Implement Queue using Linked List
- Implement stack using array
- Implement Stack using Linked List
- Queue Reversal
- Selection Sort
- Triplet Family
- Finding middle element in a linked list
- Queue Designer
- Bubble Sort
- Maximum Occuring Character
- Prime Number
- Repetitive Addition Of Digits
- Searching a number
- Power of 2
- Sort The Array
- Sort a String
- Strong Number
- Print the Kth Digit
- Doubling the value
- Majority Element
- Shortest path from 1 to n
- Rotate Array
- Permutations of a given string
- Parity of unsigned integer
- Missing number in array
- Swap two nibbles in a byte
- Maximum product of two numbers
- Number of paths
- Count total set bits
- Number is sparse or not
- Bit Difference
- Count numbers containing 4
- Immediate Smaller Element
- Binary Array Sorting
- Number of occurrence
- k largest elements
- Find position of set bit
- Pattern Jumping
- Maximum money
- Generate Binary Numbers
- Smallest number
- Find the Odd Occurence
- Maximum Possible Sum of Products
- Sum of Products
- Help the Old Man!!!
- Searching an element in a sorted array
- Sum of primes
- Merge and Sort
- Rotate by 90 degree
- The AND Gate
- Set Bits
- Subset Sums
- Longest Consecutive 1's
- Different ways to Spell a Number
- Unusual String Sort
- Minimize the sum of product
- Make a Distinct Digit Array
- Reverse each word in a given string
- Sum of product of x and y with floor(n/x) = y
- Sum of dependencies in a graph
- Sort in specific order
- Check if two arrays are equal or not
- Invert the Bits
- XOR of all elements
- Find first set bit
- Minimize sum of alternate product
- Find the element that appears once in sorted array
- Last index of One
- Transpose of Matrix
- Check whether K-th bit is set or not
- Sorted matrix
- Smallest power of 2 greater than or equal to n
- Count pair sum
- First Come First Serve
- Friendly Array
- Swap and Maximize
- Minimum Difference among K
- Sort the Half Sorted
- Alternative Sorting
- Rightmost different bit
- Check set bits
- Set kth bit
- Sorting Employees
- Count Pairs Odd Xor
- Stable Sort and Position
- Shuffle integers
- Elements in the Range
- Remove repeated digits in a given number
- Total number of Strings
- Minimum Distinct Ids
- Part Sort
- Anshuman's Favourite Number
- XOR Count Zero and One
- Sort String
- G.F Series
- Three distinct factors
- Minimum Product of k Integers
- Maximize ∑arr[i]*i of an Array
- Ishwar and his proposals
- The problem of identical arrays
- Set all odd bits
- Message Spreading
- Sum of f(a[i], a[j]) over all pairs in an array of n integers
- Ishaan's Internship
- Ishaan Loves Chocolates
- Midori and chocolates
- Difference series
- Doctors Clinic
- Tower of Hanoi

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CodeBuddy

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Overall Coding Score: 1019

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- Three way partitioning
- Intersection of Two Linked Lists
- Union of Two Linked Lists
- Index Of an Extra Element
- Peak element
- Sort a stack
- Counting elements in two arrays
- Special Stack
- Find duplicates in an array
- linked list of strings forms a palindrome
- Generate Grey Code Sequences
- Longest Consecutive Subsequence
- Maximum Difference
- Counting Sort
- Reverse a string using Stack
- Min Heap implementation
- Deque Implementations
- Xoring and Clearing - Java
- Huffman Decoding-1
- Next Right Node
- Even Subsets
- Count Pairs whose sum is equal to X
- Linked List Matrix
- Xoring and Clearing
- Matrix Interchange
- Rotate doubly Linked List
- Delete middle element of a stack
- Reverse First K elements of Queue
- Find Transition Point
- Print BST elements in given range
- Implement two stacks in an array
- Lowest Common Ancestor in a BST
- BFS of graph
- DFS of Graph
- Level order traversal in spiral form
- Stack using two queues
- Queue using two Stacks
- Expression Tree
- Nth node from end of linked list
- Heap Sort
- Quick Sort
- Merge Sort
- Insertion Sort
- Reverse a Doubly Linked List
- Occurence of an integer in a Linked List
- Remove duplicates in small prime array
- You and your books
- Josephus problem
- Distinct occurrences
- Number of Unique Paths
- Print Pattern
- Rotation
- Search in a Rotated Array
- Maximize Toys
- Minimum number of Coins
- Good Pairs
- Count Occurences of Anagrams
- Activity Selection
- Spirally traversing a matrix
- Sort an array of 0s, 1s and 2s
- Two numbers with sum closest to zero
- Maximum value in a bitonic array
- Next greater number set digits
- Finding Position
- Element that appears once where every element occurs twice
- Replace by X
- Sum of Query I
- N meetings in one room
- Addition of submatrix
- Maximum sum increasing subsequence
- Facing the sun
- Triangular Number
- Arrange Balls
- Reverse Bits
- Count Smaller elements
- 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
- Count number of hops
- Count pairs with given sum
- Cutting Rectangles
- AND operation
- Copy Set Bits in Range
- Triplet Sum in Array
- Dearrangement of balls
- Reach a given score
- Minimum element in a sorted and rotated array
- Search in a matrix
- Largest power of prime
- Chinky and diamonds
- Shop in Candy Store
- Largest number possible
- Arrange the Balls
- Missing element of AP
- Count the Zeros
- Distinct absolute array elements
- 0 - 1 Knapsack Problem
- Trail of ones
- Find the number of sub-arrays having even sum
- Skip the work
- Valid Substring
- Count the Reversals
- Tom and Jerry
- Number of ways to find two numbers
- Cutted Segments
- Minimum number of swaps needed
- Help Mommy out
- Power of Numbers
- Change Bits
- Raju and coins
- Largest number with given sum
- Permutation with Spaces
- Element appearing once
- Floor in a Sorted Array
- Finding Profession
- Flip Bits
- Letter Writer
- Finding the numbers
- Sort by Set Bit Count
- Least Prime Factor
- Choose and Swap
- Adding Ones
- Pairs with specific difference
- Largest Even Number
- Sum of elements between k1'th and k2'th smallest elements
- Min sum formed by digits
- Min Subsets with Consecutive Numbers
- String Manipulation
- Help Nobita
- Maximum 0’s between two immediate 1’s
- Chocolate Distribution Problem
- Exit Point in a Matrix
- Maximum Sum Bitonic Subsequence
- Knapsack with Duplicate Items
- Reverse Coding
- Flood fill Algorithm
- Maximum no of 1's row
- Decode the string
- Next Greater Even Number
- Gold Mine Problem
- Game of XOR
- Love For The Twins
- Sum of all substrings of a number
- Minimum Operations
- Largest zigzag sequence
- Temple Offerings
- Race in Fooland
- Increasing Sub Sequence
- Longest Palindromic Subsequence
- Fractional Knapsack
- K-th element of two sorted Arrays
- Evaluation of Postfix Expression
- Maximum difference Indexes
- Common elements
- Rod Cutting
- Efficiently sorting numbers in range from 0 to n^2 - 1
- Element in a Series
- Array Subset of another array
- First negative integer in every window of size k
- Find the highest occurring digit in prime numbers in a range
- Paths to reach origin
- Get Minimum Squares
- Nth catalan number
- Number of divisors in a given range
- Find the closest prime number to a given number
- Find Pair Given Difference
- Count all possible paths from top left to bottom right
- Minimum Deletions
- Shortest Common Supersequence
- Sort the given array after applying the given equation
- Assign Mice Holes
- Happiest Triplet
- Minimum Number in a sorted rotated array
- Largest Permutation
- Sort by Absolute Difference
- Primes sum
- Toppers Of Class
- Closest Strings
- Longest alternating subsequence
- Bitonic Generator Sort
- Count of strings that can be formed using a, b and c under given constraints
- Longest subsequence-1
- Maximum sum Problem
- Find number of times a string occurs as a subsequence
- Minimum Cost To Make Two Strings Identical
- High-effort vs. Low-effort
- Longest Repeating Subsequence
- Stickler Thief
- Minimum Swaps for Bracket Balancing
- k-th smallest number using digits of a given number
- Compute (a*b)%c
- Merging two unsorted arrays in sorted order
- Power Of 2 and Subsequences
- Kth LSB
- Count the triplets
- Sort the way !
- Check if a Integer is power of 8 or not
- Prime number of set bits
- Three Number Even Sum
- Set all the bits in given range of a number
- Next Happy Number
- Fact Digit Sum
- Maximum AND Value
- Split the Array
- Find winner of the Game of Nim
- Maximum difference of zeros and ones in binary string
- Arya and The Great War
- Mystic Falls School
- Find out the Team
- Form a number divisible by 3 using array digits
- Check if array contains contiguous integers with duplicates allowed
- Extra Perfect Numbers
- Rope Cutting
- Amicable Pair
- Count ways to express N as the sum of 1,3 and 4
- Counts Zeros Xor Pairs
- Easy string
- Count pairs Sum in matrices
- C++ Matrix Rotation by 180 degree
- Swap every two bits in bytes
- Print Binary Tree levels in sorted order
- XOR of two numbers after making length of their binary representations equal
- Hungry Pizza Lovers
- Ishaan and Sticks
- Find the closest pair from two arrays
- Print all bitwise subsets of a number N
- Maximum sum of increasing order elements from n arrays
- Print Bracket Number
- Maximum number of partitions that can be sorted individually to make sorted
- Check if it is possible to survive on Island
- Searching in an array where adjacent differ by at most k
- Print binomial expansion series
- The Optimal Selection
- Variation in Nim Game
- Sorting all array elements except one
- Smallest number with sum of digits as N and divisible by 10^N
- Reaching the heights
- Smallest greater elements in whole array
- Eulerian Path in an Undirected Graph
- Minimal moves to form a string
- Penalty Shooters
- Fitting The Array

- Count ways to N'th Stair(Order does not matter)
- The Celebrity Problem
- Minimum Swaps to Sort
- Case-specific Sorting of Strings
- Sorting Elements of an Array by Frequency
- Smallest Positive missing number
- Minimum Spanning Tree
- Merge k Sorted Arrays
- Delete without head pointer
- Max length chain
- Implementing Dijkstra | Set 1 (Adjacency Matrix)
- Kth element in Matrix
- Top View of Binary Tree
- Wildcard Pattern Matching
- Circular tour
- Get minimum element from stack
- Detect cycle in a directed graph
- Find the number of islands
- Topological sort
- Coin Change
- Kadane's Algorithm
- Longest Increasing Subsequence
- 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
- Maximum Rectangular Area in a Histogram
- Min Coin
- Consecutive 1's not allowed
- Count of Subarrays
- Path in Matrix
- Trapping Rain Water
- Case-specific Sorting of Strings
- Sum of bit differences
- Factorials of large numbers
- Minimum Platforms
- Find Prime numbers in a range
- Relative Sorting
- Maximum of all subarrays of size k
- Largest square formed in a matrix
- Row with max 1s
- Boolean Matrix Problem
- Sorting Elements of an Array by Frequency
- Rotate a 2D array without using extra space
- Special Keyboard
- Number of ways
- Form a palindrome
- Inversion of array
- Stock span problem
- Convert an array to reduced form
- Handshakes
- Is Binary Number Multiple of 3
- Palindromic Strings
- Max possible amount
- Bleak Numbers
- Number of pairs
- Coin Piles
- Maximum XOR subset
- Maximum Profit
- Minimize the heights
- Combination Sum
- Combination Sum - Part 2
- Word Break
- Kth smallest element
- 7 Segment Display
- Longest Common Substring
- Count Palindrome Sub-Strings of a String
- Snake and Ladder Problem
- Recursively remove all adjacent duplicates
- Find all four sum numbers
- Is Sudoku Valid
- Find whether path exist
- Largest prime factor
- First non-repeating character in a stream
- Count subsequences of type a^i b^j c^k
- Magnet Array Problem
- Minimum number of steps to reach a given number.
- Floyd Warshall
- Nearly Sorted Algorithm
- Geek collects the balls
- Longest Bitonic subsequence
- Reverse Spiral Form of Matrix
- Maximum sum Rectangle
- Maximum Intervals Overlap
- Perfect Sum Problem
- Job Sequencing Problem
- Page Faults in LRU
- Rotten Oranges
- Matrix Chain Multiplication
- Print N-bit binary numbers having more 1’s than 0’s
- Marks of PCM
- Container with most water
- Optimal Strategy For A Game