- Count nodes of linked list
- Size of Binary Tree
- Inorder Traversal
- Bubble Sort
- Count Leaves in Binary Tree
- Height of Binary Tree
- Postorder Traversal
- Implement stack using array
- Square root
- Binary Search
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Preorder Traversal
- Equal Sum and XOR
- Find Number of Numbers
- Find triplets with zero sum
- Play with an array
- Minimum element in BST
- Find the Sum of Last N nodes of the Linked List
- Sum of Binary Tree
- Count Non-Leaf Nodes in Tree
- C++ Call by reference
- Start Coding
- logical Operators
- Sort and Reverse Vector
- Front to Back
- Queue Designer
- Start Coding - Python
- Space Seperated - Python
- Concatenating Strings - Python
- Taking input and typecasting - Python
- Taking input - Python
- Comparison Operators - Python
- Welcome aboard - Python
- Regex - Python
- Repetitive Addition Of Digits
- Power of 2
- Celsius to Fahrenheit Conversion
- Strong Number
- Doubling the value
- Rotate Array
- Parity of unsigned integer
- Check if the number is Fibonacci
- Maximum product of two numbers
- Perfect Squares in a Range
- Binary Array Sorting
- Convert array into Zig-Zag fashion
- Number of occurrence
- Maximum money
- Ways To Tile A Floor
- Sum of Products
- The Lazy Caterer's Problem
- The AND Gate
- Repeated sum of digits
- Sum of divisors
- Minimize the sum of product
- Sum of product of x and y with floor(n/x) = y
- Sort in specific order
- XOR of all elements
- Geek and Coffee Shop
- Find the element that appears once in sorted array
- Find minimum and maximum element in an array
- Smallest power of 2 greater than or equal to n
- Pair array product sum
- Count pair sum
- First Come First Serve
- Count numbers divisible by M
- Max value after m range operation
- Set kth bit
- Count Pairs Odd Xor
- Toggle bits given range
- Elements in the Range
- Print first n Fibonacci Numbers
- Check perfect square
- Rearrange the array
- Anshuman's Favourite Number
- Rectangle Number
- Find the fine
- One's Complement
- The Cycle Game
- Series X1
- Make Co-prime Array
- Special Series Sum
- Find sum of even factors of a number
- Message Spreading
- Inverse Permutation
- Game with nos
- Ishaan's Internship
- Ishaan Loves Chocolates
- Factor OR Multiple
- Difference series
- Multiply left and right array sum.
- Doctors Clinic
- Extended Euclidean Algorithm

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#6

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Campus Ambassador

Overall Coding Score: 1141

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- Insertion Sort
- Mirror Tree
- Find Transition Point
- Implement two stacks in an array
- Largest subarray with 0 sum
- Max sum in the configuration
- Equilibrium index of an array
- Josephus problem
- Max distance between same elements
- Root to leaf paths sum
- Peak element
- Index Of an Extra Element
- Sum of leaf nodes in BST
- Counting elements in two arrays
- XOR of a given range
- Count Pairs whose sum is equal to X
- Children Sum Parent
- Sum of Leaf Nodes
- Sum of Right Leaf Nodes
- 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
- Learn to Comment - Java
- Count Odd Even
- Need Some Change
- Count the Specials
- Predict the Column
- Matrix Interchange - Java
- Magic in CPP
- Swap the objects
- Two Dimensional World
- Learning Structs
- Delete Array
- Maximum Area Rectangle
- Sum of Big Integers
- BigInteger Multiply
- Find the Frequency
- Back to Front
- Pair Sum in Vector
- Operations on ArrayList
- Queue Operations
- Deque Implementations
- Min Heap implementation
- Frequency Game
- Multimap Operations
- Repetitive Printing - Python
- Operators in Python
- Split the input - Python
- Comment in Python
- Logical Operators - Python
- Increment and Decrement - Python
- Bitwise Operators - Python
- If conditional statement- Python
- Check the status - Python
- Mark Even and Odd - Python
- For loop - Python
- For Loop 2- Python
- While loop in Python
- Jumping through While - Python
- Slicing in String - Python
- Repeat the Strings - Python
- String Functions - II - Python
- String Functions I - Python
- Is and In Operator
- sep and end in Print()
- Frequencies of Limited Range Array Elements
- Wave Array
- Print Pattern
- Search in a Rotated Array
- Squares in N*N Chessboard
- Good Pairs
- First Repeating Element
- Count Occurences of Anagrams
- Move all zeroes to end of array
- Remove all duplicates from a given string
- Equal Sum and Product
- Sort an array of 0s, 1s and 2s
- Maximum value in a bitonic array
- Next greater number set digits
- Finding Position
- Element that appears once where every element occurs twice
- Addition of submatrix
- Facing the sun
- Triangular Number
- Max Sum without Adjacents
- Make Number Odd
- Maximum Difference
- Product array puzzle
- Multiply two polynomals
- Reverse Bits
- Count Smaller elements
- Count numbers
- Leaders in an array
- Swap all odd and even bits
- Count pairs with given sum
- Largest power of prime
- Chinky and diamonds
- Count the Zeros
- Distinct absolute array elements
- Find the number of sub-arrays having even sum
- Tom and Jerry
- Number of ways to find two numbers
- Game of Death in a circle
- Left out candies
- Collection of pens
- Element appearing once
- Least Prime Factor
- Left or Right Positioned Array
- Collecting Trees
- Adding Ones
- Pairs with specific difference
- Count Pairs in an Array
- Min sum formed by digits
- Min Subsets with Consecutive Numbers
- Maximum Sum Bitonic Subsequence
- Find sum of divisors
- Reverse Coding
- Maximum no of 1's row
- Drive the car
- Rahul a Geek
- Game of XOR
- Find Nth root of M
- Love For The Twins
- Largest Fibonacci Subsequence
- Rod Cutting
- Efficiently sorting numbers in range from 0 to n^2 - 1
- Element in a Series
- First negative integer in every window of size k
- Sum of product of all pairs
- Four Elements
- Nth catalan number
- Number of divisors in a given range
- Mr Modulo and Pairs
- Minimum Number in a sorted rotated array
- Number of Groups
- Swapping pairs make sum equal
- Break a number
- Maximum sum Problem
- Bell Numbers
- Compute (a*b)%c
- N’th Pentagonal Number
- Sum of Lengths of Non-Overlapping SubArrays
- Required Rooms
- Next Happy Number
- Pairs which are Divisible by 4
- Count unset bits in a given Range
- Find winner of the Game of Nim
- Arya and The Great War
- Mystic Falls School
- Form a number divisible by 3 using array digits
- Rearrange an array such that arr[i] = i
- Maximum height of the staircase
- Ease the Array
- Amicable Pair
- Counts Zeros Xor Pairs
- Count pairs Sum in matrices
- Akaash's Assignment
- Common Divisor
- The Inverting Factor
- Searching in an array where adjacent differ by at most k
- Penalty Shooters

- Count BST nodes that lie in a given range
- Delete without head pointer
- Intersection Point in Y Shapped Linked Lists
- Clone a linked list with next and random pointer
- Diagonal Traversal of Binary Tree
- Min distance between two given nodes of a Binary Tree
- Serialize and Deserialize a Binary Tree
- Make Binary Tree From Linked List
- Kth element in Matrix
- Clone a Binary Tree
- Remove loop in Linked List
- Minimum Swaps to Sort
- Delete keys in a Linked list
- Merge two BST 's
- Merge k Sorted Arrays
- k-th smallest element in BST
- Find a pair with given target in BST
- Occurences of 2 as a digit
- Foldable Binary Tree
- Construct Tree from Preorder Traversal
- Convert Level Order Traversal to BST
- Count Number of SubTrees having given Sum
- C++ Friend function
- C++ Generic sort
- Operations on PriorityQueue
- Cat and Hat - Python
- Zero Converter - Python
- Sorting Elements of an Array by Frequency
- Case-specific Sorting of Strings
- Count ways to N'th Stair(Order does not matter)
- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Print Diagonally
- Equal Sum
- Count ways to N'th Stair(Order does not matter)
- nCr
- Maximum Rectangular Area in a Histogram
- Count of Subarrays
- Trapping Rain Water
- Case-specific Sorting of Strings
- Rank of Matrix
- Sum of bit differences
- Number following a pattern
- Find Prime numbers in a range
- Largest Number formed from an Array
- 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
- Sorting Elements of an Array by Frequency
- Nuts and Bolts Problem
- Rotate a 2D array without using extra space
- Special Keyboard
- Sum of Query II
- Inversion of array
- Longest consecutive subsequence
- Convert an array to reduced form
- Minimum steps to get desired array
- Dimensions of Rectangle
- Palindromic Array
- Cost of Sweets
- Bleak Numbers
- Number of pairs
- Maximum Profit
- Digit multiplier
- X Total Shapes
- Matchsticks game
- Word Break
- Kth smallest element
- Replace O's with X's
- Find whether path exist
- Largest prime factor
- Rearrange characters
- Express as sum of power of natural numbers
- Count subsequences of type a^i b^j c^k
- Zero Sum Subarrays
- Magnet Array Problem
- Smallest distinct window
- Nearly Sorted Algorithm
- Infix to Postfix
- Longest Bitonic subsequence
- Maximum Intervals Overlap
- N Digit numbers with digits in increasing order
- Rotten Oranges
- Coins and Game
- Matrix Chain Multiplication
- Find the element at given index
- Print N-bit binary numbers having more 1’s than 0’s
- Marks of PCM
- Container with most water

- QuickSort on Doubly Linked List
- Reorder List
- Binary Tree to DLL
- AVL Tree Insertion
- Maximum subset XOR
- Alien Dictionary
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST
- Number of Turns in Binary Tree
- 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
- Create your own Calculator
- Number Formation
- Boolean Parenthesization
- Longest valid Parentheses
- Word Break - Part 2
- Minimum Cost Path
- N-Queen Problem
- Solve the Sudoku
- Find median in a stream
- Travelling Salesman Problem
- Max Circular Subarray Sum
- Very Tough Problem
- Distinct palindromic substrings
- Longest Zig-Zag Sub Sequence
- Similar expressions
- Convert to Strictly increasing array
- Phone directory
- Count the subarrays having product less than k
- Closest Palindrome