- Sum of array elements
- Reverse an Array
- Alone in couple
- Sum of Array
- Sum of Series
- Binary number to decimal number
- Automorphic Number
- Remove Spaces
- Second Largest
- Reverse digits
- At least two greater elements
- Reverse a String
- GCD of two numbers
- Replace all 0's with 5
- Multiply Matrices
- Print alternate elements of an array

Name

Liza

Rank in Institute

#1

Courses Attended

Campus Ambassador

Overall Coding Score: 2150

Monthly Coding Score: 725

Weekly Coding Score: 0

- Search an Element in an array
- 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
- 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
- Permutations of a given string
- Missing number in array
- Array of alternate +ve and -ve no.s
- Swap two nibbles in a byte
- Number of paths
- Segregate Even and Odd numbers
- Bit Difference
- Immediate Smaller Element
- Binary Array Sorting
- Intersection of two arrays
- Union of two arrays
- Number of occurrence
- k largest elements
- Pairs of prime number
- Minimum difference pair
- Find position of set bit
- Sum of all prime numbers between 1 and N.
- Ways To Tile A Floor
- Generate Binary Numbers
- Find the Odd Occurence
- Angle between hour and minute hand
- Keypad typing
- Check if given four points form a square
- Rotating an Array
- Searching an element in a sorted array
- Total count
- Sum of primes
- Rotate by 90 degree
- Reverse array in groups
- Set Bits
- Repeated sum of digits
- Sum of divisors
- Count Squares
- Nth Even Fibonacci Number
- Padovan Sequence
- Missing number
- Reverse each word in a given string
- String with numbers at its end
- Interesting Patterns
- Help a Thief!!!
- Replace the Bit
- Squares in a Matrix
- Find duplicates under given constraints
- Find first and last occurrence of x
- Type of array
- 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
- Check if string is rotated by two places
- Unique Numbers
- Find first set bit
- Check for subsequence
- Check if the door is open or closed
- Find first repeated character
- Does array represent Heap
- Find the element that appears once in sorted array
- Thief trying to escape
- Last index of One
- Transpose of Matrix
- First element to occur k times
- Check whether K-th bit is set or not
- Uncommon characters
- Find the smallest and second smallest element in an array
- URLify a given string
- Rotate Bits
- Sorted matrix
- Sum Terms Nth Row
- Pair cube count
- Swap and Maximize
- Fibonacci in the array
- Alternative Sorting
- Rightmost different bit
- Count numbers divisible by M
- Check set bits
- Set kth bit
- Sorting Employees
- Quick Left Rotation
- Toggle bits given range
- Twice counter
- Print first n Fibonacci Numbers
- Check a Integer is power of 3 or not
- Change all even bits in a number to 0
- Closest Number
- Positive and negative elements
- Rearrange the array
- Absolute Difference of 1
- Remove common characters and concatenate
- Left Rotate Matrix K times
- Good or Bad string
- Repeated Character
- Find the fine
- Three distinct factors
- Minimum Product of k Integers
- Find the closest number
- Series X1
- Floating point number even or odd
- Factors Sum
- Check if strings are rotations of each other or not
- Is digital root of N a prime?
- Making elements distinct
- Countries at war
- Jumpy Ball
- Sum of all sub-sequences of a number
- Sum of f(a[i], a[j]) over all pairs in an array of n integers
- Game with nos
- Play With OR
- Why is Melody so chocolaty?
- Pattern-1
- Ishaan's Internship
- Chocolate lengths
- Factor OR Multiple
- Jay's Apples
- The Modulo Task
- The Penalty Shootout
- Difference series
- Multiply left and right array sum.
- Height of Heap
- Print Linked List elements
- Count nodes of linked list
- Node at a given index in linked list
- Delete node in Doubly Linked List
- Size of Binary Tree
- Inorder Traversal
- Count Leaves in Binary Tree
- Selection Sort
- Height of Binary Tree
- Finding middle element in a linked list
- Circular Linked List
- Postorder Traversal
- Implement Stack using Linked List
- Implement Queue using Linked List
- Implement Queue using array
- Square root
- Insert a node in Doubly linked list
- Binary Search
- Remove duplicate elements from sorted Array
- Replace all 0's with 5
- Convert to Roman No
- Preorder Traversal
- Implement strstr
- Middle Pattern
- Search a node in BST
- Remainder with 7
- Implement Atoi
- Find Number of Numbers
- Find triplets with zero sum
- Linked List Insertion
- Minimum element in BST
- Anagram of String
- Circular Linked List Traversal
- Linked List Length Even or Odd?
- Delete Alternate Nodes
- Identical Linked Lists
- Find the Sum of Last N nodes of the Linked List
- Modular Node
- Find n/k th node in Linked list
- Maximum in Struct Array
- Queue Reversal
- Sum of Binary Tree
- Insert in Middle of Linked List
- longest substring containing '1'
- Count Non-Leaf Nodes in Tree
- Product of array elements

- Anagram
- Number of Unique Paths
- Wave Array
- Print Pattern
- Rotation
- Search in a Rotated Array
- Squares in N*N Chessboard
- Maximize Toys
- Trailing zeroes in factorial
- Non Repeating Character
- Minimum number of Coins
- 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
- 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
- Element that appears once where every element occurs twice
- Longest Distinct characters in string
- Count distinct pairs with difference k
- Is Square
- Column name from a given column number
- N meetings in one room
- Remove Duplicates
- Kth distance
- Addition of submatrix
- Maximum sum increasing subsequence
- Array to BST
- Facing the sun
- Triangular Number
- Key Pair
- Maximum Difference
- Reverse Bits
- Reach the Nth point
- Subarray with given sum
- Adjacents are not allowed
- Leaders in an array
- Swap all odd and even bits
- Count number of hops
- Inorder Traversal and BST
- Triplet Sum in Array
- Three Great Candidates
- Dearrangement of balls
- Reach a given score
- Overlapping rectangles
- Minimum element in a sorted and rotated array
- Number Of Open Doors
- Cross character
- Day of the week
- Shop in Candy Store
- Largest number possible
- Missing element of AP
- Count the Zeros
- 0 - 1 Knapsack Problem
- Longest Common Increasing Subsequence
- Integral Points In Triangle
- Skip the work
- Valid Substring
- Tom and Jerry
- Extract the Number from the String
- Cutted Segments
- Smallest number subset
- Number that are not divisible
- Maximum average subarray
- Power of Numbers
- Left out candies
- Perfect Numbers
- The Nth Fibonnaci
- Element appearing once
- Equilibrium point
- Floor in a Sorted Array
- Buildings receiving sunlight
- Finding the numbers
- Sort by Set Bit Count
- Prime Factors
- Pairs with specific difference
- Coverage of all Zeros in a Binary Matrix
- Chocolate Distribution Problem
- Binary Tree K level sum
- Exit Point in a Matrix
- Maximum Sum Bitonic Subsequence
- 1[0]1 Pattern Count
- Knapsack with Duplicate Items
- Sum of k smallest elements in BST
- Flood fill Algorithm
- Decode the pattern
- Roman Number to Integer
- Maximum no of 1's row
- Friends Pairing Problem
- Gold Mine Problem
- Smallest subarray with sum greater than x
- Find Nth root of M
- Find largest word in dictionary
- Sum of all substrings of a number
- Minimum Operations
- Find all pairs with a given sum
- Check if frequencies can be equal
- Largest zigzag sequence
- Palindromic patitioning
- Meta Strings
- Temple Offerings
- Largest Fibonacci Subsequence
- Increasing Sub Sequence
- Longest Palindromic Subsequence
- K-th element of two sorted Arrays
- Evaluation of Postfix Expression
- Common elements
- Rod Cutting
- Element with left side smaller and right side greater
- Array Subset of another array
- First negative integer in every window of size k
- Game with String
- Find the highest occurring digit in prime numbers in a range
- Paths to reach origin
- Subarray with 0 sum
- Get Minimum Squares
- Nth catalan number
- Carry counter
- Count the elements
- Second most repeated string in a sequence
- Count all possible paths from top left to bottom right
- Minimum Deletions
- Shortest Common Supersequence
- Sort the given array after applying the given equation
- Painting the Fence
- Swapping pairs make sum equal
- Toppers Of Class
- String Ignorance
- Minimum steps to minimize n as per given condition
- Minimum number of deletions.
- Jumping Caterpillars
- Closest Strings
- Longest alternating subsequence
- Ways to sum to N
- 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
- Longest subsequence-1
- Maximum sum Problem
- String comparison
- Minimum indexed character
- High-effort vs. Low-effort
- Longest Repeating Subsequence
- Stickler Thief
- Remaining String
- Maximum Product Cutting
- Find the most frequent digit
- Transform the array
- Even Fibonacci Numbers Sum
- Common Subsequence
- K-Ary Tree
- Boundary Elements of Matrix
- Count the triplets
- Star elements
- Pairs with Positive Negative values
- Pairs with Difference less than K
- Summed Matrix
- Fact Digit Sum
- Closing bracket index
- Number of pairs with maximum sum
- Longest common prefix
- Rearrange array such that even positioned are greater than odd
- Find winner of the Game of Nim
- Sum of all divisors from 1 to n
- Maximum distinct elements after removing K elements
- Maximum difference of zeros and ones in binary string
- N trailing zeroes in factorials
- Mystic Falls School
- Reorganize The Array
- Check if array contains contiguous integers with duplicates allowed
- Maximum height of the staircase
- Ease the Array
- Amicable Pair
- Count ways to express N as the sum of 1,3 and 4
- Counts Zeros Xor Pairs
- Damon Prime
- 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
- Hungry Pizza Lovers
- Arya's Long String
- Ishaan and Sticks
- Akaash's Assignment
- Common Divisor
- Maximum sum of increasing order elements from n arrays
- Print Bracket Number
- Surround the 1's
- Eulerian Path in an Undirected Graph
- XOR Cipher
- Print adjacency list
- Geeks and the test
- Geek and the base
- Reverse a linked list
- Occurence of an integer in a Linked List
- Delete N nodes after M nodes of a linked list
- Rotate a Linked List
- Pairwise swap elements of a linked list
- Given a linked list of 0s, 1s and 2s, sort it.
- Add two numbers represented by linked lists
- Rearrange a linked list
- Add 1 to a number represented as linked list
- linked list of strings forms a palindrome
- Compare two linked lists
- Merge 2 sorted linked list in reverse order
- Linked List in Zig-Zag fashion
- Detect Loop in linked list
- Remove duplicates from an unsorted linked list
- Sorted insert for circular linked list
- Split a Circular Linked List into two halves
- Reverse a Doubly Linked List
- Insertion Sort
- Merge Sort
- Quick 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
- Heap Sort
- Nth node from end of linked list
- Left View of Binary Tree
- Delete Middle of Linked List
- Merge two sorted linked lists
- 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
- 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
- Absolute List Sorting
- Lowest Common Ancestor in a BST
- Implement two stacks in an array
- Binary Heap Operations
- 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
- Equilibrium index of an array
- Remove every k'th node
- Leaf at same level
- Is Binary Tree Heap
- Match specific pattern
- Validate an IP Address
- Find Maximum value
- Distinct occurrences
- Sorted subsequence of size 3
- Josephus problem
- You and your books
- Expression Tree
- Check if Linked List is Palindrome
- Longest Consecutive Subsequence
- Generate Grey Code Sequences
- Check whether BST contains Dead End
- Delete a Node in Single Linked List
- Kth largest element in BST
- Find duplicates in an array
- Count distinct elements in every window
- Max Level Sum in Binary Tree
- Special Stack
- 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
- Insert in a Sorted List
- Split Singly Linked List Alternatingly
- Ancestors in Binary Tree
- Level of a Node 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
- XOR of a given range
- Full binary tree
- Modify Linked List-1
- Symmetric Tree
- Construct Tree from Inorder & Preorder
- Construct BST from Postorder
- Merge Lists Alternatingly
- Arrange Consonants and Vowels
- Vertical sum
- Next Right Node
- Count Pairs whose sum is equal to X
- 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
- Change of Key in BST
- Median of BST
- Normal BST to Balanced BST
- Leaf under budget
- 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
- Check if two Nodes are Cousins
- ZigZag Tree Traversal
- Sum of Leaf Nodes at Min Level
- Tilt of Binary Tree
- Move all zeros to the front of the linked list
- Vertical Width of a Binary Tree
- Rotate doubly Linked List
- Reverse words in a given string

- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Sum Of Prime
- 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
- 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
- Possible words from Phone digits
- Jumping Numbers
- Longest Palindrome in a String
- Modular Exponentiation for large numbers
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Relative Sorting
- 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
- Special Keyboard
- Number of ways
- Dyck Path
- Minimum Cost of ropes
- Sum of Query II
- Form a palindrome
- Inversion of array
- Maximum length Bitonic Subarray
- Length of the longest substring
- Longest consecutive subsequence
- Maximum Sum Path in Two Arrays
- Convert an array to reduced form
- M-Coloring Problem
- Minimum steps to get desired array
- Subsequence matching
- Dimensions of Rectangle
- Handshakes
- Palindromic Array
- Is Binary Number Multiple of 3
- Preorder Traversal and BST
- Max possible amount
- Smallest Sub-Array
- Coin Piles
- Maximum Profit
- Largest number in K swaps
- Special Matrix
- Minimize the heights
- Next larger element
- 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
- 3 Divisors
- Longest Common Substring
- Count Palindrome Sub-Strings of a String
- Negative weight cycle
- Hamiltonian Path
- Snake and Ladder Problem
- Recursively remove all adjacent duplicates
- Shortest Source to Destination Path
- Divisibility tree
- Replace O's with X's
- Knight Walk
- Find all four sum numbers
- Word Boggle
- Is Sudoku Valid
- Find whether path exist
- Largest prime factor
- Unit Area of largest region of 1's
- Rearrange characters
- First non-repeating character in a stream
- Kth Smallest Factor
- Count subsequences of type a^i b^j c^k
- K
^{th}largest element in a stream - Water Overflow
- Zero Sum Subarrays
- Magnet Array Problem
- Floyd Warshall
- Nearly Sorted Algorithm
- Infix to Postfix
- Geek collects the balls
- Smallest Positive missing number
- Longest Bitonic subsequence
- Mobile numeric keypad
- Reverse Spiral Form of Matrix
- Maximum sum Rectangle
- Maximum Intervals Overlap
- Word Wrap
- Perfect Sum Problem
- Array Pair Sum Divisibility Problem
- Job Sequencing Problem
- Top k numbers in a stream
- Page Faults in LRU
- Firing employees
- Rotten Oranges
- Modify array to maximize sum of adjacent differences
- LCS of three strings
- Longest Common Prefix in an Array
- Minimum cost to fill given weight in a bag
- Steps by Knight
- Median In a Row-Wise sorted Matrix
- Coins and Game
- Brackets in Matrix Chain Multiplication
- Matrix Chain Multiplication
- Maximum bitonic subarray sum
- Last two digits of Fibonacci
- Lazy Pasha
- Make Matrix Beautiful
- Sick Pasha
- Beautiful SubSequence
- The Tiny Miny
- Nitika and her queries
- Geek and Strings
- The Painter's Partition Problem
- Minimum swaps and K together
- Large Factorials
- Rat Maze With Multiple Jumps
- Construct binary palindrome by repeated appending and trimming
- Optimal Strategy For A Game
- Geek and the lockers
- Given a linked list, reverse alternate nodes and append at the end
- Reverse a Linked List in groups of given size.
- Delete nodes having greater value on right
- Quick Sort on Linked List
- Count BST nodes that lie in a given range
- Check for BST
- Tree from Postorder and Inorder
- 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
- Range Minimum Query
- The Celebrity Problem
- Topological sort
- Print a Binary Tree in Vertical Order
- Merge K sorted linked lists
- Find the number of islands
- Get minimum element from stack
- Serialize and Deserialize a Binary Tree
- Circular tour
- 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
- Largest BST
- Interleaved Strings
- LRU Cache
- Box Stacking
- Multiply two strings
- Minimum Swaps to Sort
- Rat in a Maze Problem
- Bipartite Graph
- 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
- Top View of Binary Tree
- k-th smallest element in BST
- Polynomial Addition
- Euler circuit and Path
- Merge Sort on Doubly Linked List
- Binary Tree to CDLL
- Find a pair with given target in BST
- 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
- Construct Tree from Preorder Traversal
- Construct a Full Binary Tree
- Convert Level Order Traversal to BST
- Count Number of SubTrees having given Sum
- C++ Friend function
- C++ Generic sort
- Smallest Positive missing number
- Unique BST's
- Distance of nearest cell having 1
- Unit Area of largest region of 1's
- M-Coloring Problem

- Minimum Points To Reach Destination
- Minimum sum partition
- Merge Without Extra Space
- Find sum of different corresponding bits for all pairs
- Return two prime numbers
- Ugly Numbers
- Largest rectangle of 1’s with swapping of columns allowed
- Path of greater than equal to k length
- 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
- Distinct palindromic substrings
- Longest Zig-Zag Sub Sequence
- Convert to Strictly increasing array
- Phone directory
- Count the subarrays having product less than k
- QuickSort on Doubly Linked List
- Reorder List
- Binary Tree to DLL
- AVL Tree Insertion
- Maximum subset XOR
- AVL Tree Deletion
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST
- Number of Turns in Binary Tree