Data Structure
Java
Python
HTML
Interview Preparation
- Interview Prep
- Tutorials
- Tracks
avantika_agarwal
STREAK
100/1576
days
Longest streak/Global longest streak
Institution
Dhirubhai Ambani Institute of Information and Communication Technology, Gandhinagar
Language Used
C++, C, Java, Python
Coding Score
1480
Problem Solved
908
Contest Rating
__
206 points
Contributor
206 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
28 submissions in current year
SCHOOL (2)
BASIC (237)
EASY (346)
MEDIUM (279)
HARD (44)
- Reverse a linked list
- Node at a given index in linked list
- Remove duplicates from an unsorted linked list
- Delete in a Doubly Linked List
- Inorder Traversal
- Reverse a Doubly Linked List
- Bubble Sort
- Selection Sort
- Right View of Binary Tree
- Mirror Tree
- Maximum Width of Tree
- Height of Binary Tree
- Balanced Tree Check
- Kth from End of Linked List
- Middle of a Linked List
- Check If Circular Linked List
- Left View of Binary Tree
- Transform to Sum Tree
- Find Transition Point
- Queue using two Stacks
- Remove Duplicates from a Sorted Linked List
- Postorder Traversal
- Level Order in spiral form
- DFS of Graph
- Stack using Linked List
- Insert a node in a BST
- BFS of graph
- Identical Trees
- Square Root
- Nodes without a Sibling
- Insertion at doubly linked list
- Binary Search
- Largest subarray of 0's and 1's
- Remove Duplicates Sorted Array
- Level Order Line by Line
- BST Keys in a Range
- Minimum Depth of a Binary Tree
- Remove Duplicates from an array
- Third largest element
- Search a node in BST
- Josephus problem
- Count Occurrence of digit k
- Minimum distance in an Array
- Array Duplicates
- Three way partitioning
- Index of an Extra Element
- Minimum element in BST
- More than n/k Occurrences
- Find the Sum of Last N nodes of the Linked List
- Maximum Pairwise Computed Value
- Queue Reversal
- Reverse first K of a Queue
- Delete Mid of a Stack
- Product of an Array
- C++ Multi-level inheritance
- C++ Template
- The New Line
- Data Types
- Learn to Comment
- Swap values using References
- Swap the objects
- Two Dimensional World
- Find the Frequency
- Back to Front
- Reverse an Array
- Get min at pop
- Deque Implementations
- Frequency Game
- Multiset Operations
- Multimap Operations
- Max and Second Max
- Hashing for pair - 1
- Implement Stack Using Array
- Fibonacci Numbers - Top Down DP
- Fibonacci Numbers - Bottom Up DP
- Coin Change - Number of ways
- Kadane's Algorithm - I
- Kadane's Algorithm - II
- First Set Bit
- Rightmost different bit
- Check K-th Bit
- Factorial Of Number
- Digits In Factorial
- GP Term
- Primality Test
- Longest Consecutive 1's
- Exactly 3 Divisors
- Mean And Median of Array
- Power of 2
- Swap odd and even bits
- Minimum adjacent difference in a circular array
- Frequencies in a Limited Array
- Equilibrium Point
- Array Leaders
- Count 1's in binary array
- Floor in a Sorted Array
- Minimum Number in a sorted rotated array
- Roof Top
- Intersection of two sorted arrays
- Closet 0s 1s and 2s
- Print adjacency list
- Sum of upper and lower triangles
- Print Matrix in snake Pattern
- Transpose of Matrix
- Interchanging the rows of a Matrix
- Reversing the columns of a Matrix
- Matrix Boundary Traversal
- Exchange matrix columns
- Separate chaining in Hashing
- Naive Pattern Search
- Linear Probing in Hashing
- Quadratic Probing in Hashing
- Check if a string is Isogram or not
- Count Non-Repeated Elements
- Print Non-Repeated Elements
- Anagram
- Winner of an election
- String Rotated by 2 Places
- Isomorphic Strings
- Most Frequent Character
- The Modified String
- Reverse Words
- Sum of numbers in string
- Minimum indexed character
- Repeating Character
- Non Repeating Character
- Removing consecutive duplicates
- Removing consecutive duplicates - 2
- Parenthesis Checker
- Generate Binary Numbers
- K largest elements
- N meetings in one room
- Largest number with given sum
- Count Digits in a Number
- Digital Root
- Power Set Using Recursion
- Union-Find
- Number of Connected Components
- Count ways to N'th Stair
- Count number of hops
- Recursively Sum N Numbers
- Factorial Using Recursion
- Uppercase to Lowercase
- Corresponding pair
- Vector min_element
- Vector Accumulate
- Find element in Set using Count
- Rotate vector by K places
- Check if Arrays are Permutations
- Pattern searching
- Merge Sorted Arrays Using Minheap
- Deque deletion
- Rotate Deque By K
- Elements Less Than K
- Increasing Roll And Marks
- Print Different Characters In Sorted Manner
- Maximum Among Left
- First Repeating Element
- Unique Substrings
- Union of Arrays with Duplicates
- Common Elements
- Reach a given score
- New Registration System
- Check Equal Arrays
- Maximium Sum
- Numbers containing 1, 2 and 3
- Positive Negative Pair
- Sum Unique Elements
- Search Query for Strings
- Count Elements Greater Than X
- Count Smaller Than X
- Find Immediate Smaller Than X
- Lexicographically Smallest String
- Array Update At Index
- Array Delete And Shift
- Is Array Sorted
- Find Immediate Greater Than X
- Missing in Array
- Reverse The Array
- Find nCr
- String Validation
- Insert In Sorted Linked List
- Delete Tail of Linked List
- Delete Head of Linked List
- Linked List Delete at Position
- Is Linked List Sorted
- Join Two Linked Lists
- Circular Linked List Head Insert
- Circular Linked List Tail Insert
- Delete Tail of Circular Linked List
- Circular Linked List Delete at Position
- Delete Tail of Doubly Linked List
- Delete Head of Doubly Linked List
- Is The Doubly Linked List Circular
- Compare Circular Doubly Linked Lists
- Find Middle of Circular Doubly Linked List
- Intersection of Arrays with Distinct
- Missing And Repeating
- Find Index
- Non-Repeating Element
- Count the elements
- Find Kth Rotation
- Move All Zeroes to End
- String Duplicates Removal
- Chocolate Distribution Problem
- Count the triplets
- Find Pair Given Difference
- Fascinating Number
- Bitonic Point
- Find Duplicate Element
- Left most and right most index
- Sort Array II
- Alternate Positive Negative
- The Thief Problem
- Remove Duplicates
- Compete the skills
- Rahul lucky-unlucky
- Facing the sun
- Greater on right side
- Second Largest
- Convert array into Zig-Zag fashion
- Two Sum - Pair with Given Sum
- Find all pairs with a given sum
- Number of occurrence
- Average of Prefix
- Find the left over element
- Reversing the equation
- Convert an array to reduced form
- Check if array is sorted
- Sum of distinct elements for a limited range
- Two sum -Pairs with 0 Sum
- Inverse Permutation
- Play With OR
- At Least K Occurrences
- Ishaan and Sticks
- Merging two unsorted arrays in sorted order
- Count the Zeros
- Java Arrays | Set 1
- First and Second Smallests
- Palindrome String
- Number of 1 Bits
- Midori and chocolates
- Rearrange the array
- Nth Fibonacci Number
- Prime Number
- The FizzBuzz Program
- Count numbers containing 4
- Check Prime
- Greatest of Three
- AP Term
- Leap Year
- Least Prime Factor
- Trace Path
- Print Square Wall Using Nested Loops
- Right Angle Triangle
- Print Alphabets
- Array Traversal Reverse
- Sum All Array Elements
- Decrement Array Values
- Design a class
- Constructor Overloading
- Addition
- Day before N days
- Even Odd Game
- First Digit of a Number
- Calculator
- Prime Factorization
- Count Digits
- Find one extra character
- Design a Data Structure with insert/replace/print Operation
- Sort one array according to another array
- Type Conversion
- Chocolate Distribution Problem
- Average
- Swap the objects-Double pointers
- Lambda Expression in C++
- Incrementing a variable
- Add two numbers
- Sort in Descending
- Add two complex numbers
- Geometric Progression Term
- Permutations of a String
- Return Size
- Kth call
- Add - Auto Keyword
- Convert to Hexadecimal
- Global variable
- Binary to Decimal
- Scientific Format
- Find Volume
- GetLine 1
- CPP Substring
- GetLine 2
- Address Operator
- Decimal number to binary number
- Type Inference
- Sum - Default Arguments
- Minimum Difference in an Array
- Check if a String is Subsequence of Other
- First and last occurrences of x
- Count the Substrings
- Insert an Element at the Bottom of a Stack
- Make sum even
- Stock Buy and Sell – Max one Transaction Allowed
- Maximum Depth Of Binary Tree
- Geek left with No Food
- Transform to Sum Tree
- Reverse both parts
- Cutting Rectangles
- Frogs and Jumps
- Make Array Elements Equal
- Equal Left and Right Subarray Sum
- Make the array beautiful
- Remainder on dividing by 11
- Is it Fibonacci
- Taxi Booking
- Max Level Sum in Binary Tree
- Binary matrix having maximum number of 1s
- Number of Subarrays of 0's
- Maximum Identical Bowls
- Bus Conductor
- Wifi Range
- Minimum Number
- Minimum Integer
- Seating Arrangement
- String Mirror
- Make Palindrome
- Binary Modulo
- Total Cuts
- Bit Magic
- Array Operations
- Dominant Pairs
- Total Traversal Time
- Special Array
- Wave Array
- The Conversion To One
- Odd The Even Out
- Greater Permutations
- Are They Anagrams?
- Longest Consecutive 1s
- CPP - Digital root
- CPP - Check Divisibility
- CPP - Design Calculator Class
- CPP - Multiply
- CPP - Separate 0s and 1s in vector
- CPP - Binary String
- Add Number Linked Lists
- Detect Loop in linked list
- Count BST nodes that lie in a given range
- Check for BST
- Binary Tree from Inorder and Postorder
- Bottom View of Binary Tree
- Delete without head pointer
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Merge two sorted linked lists
- Construct Binary Tree from Parent Array
- Connect Nodes of Levels
- Diagonal Tree Traversal
- Delete a node from BST
- Directed Graph Cycle
- Undirected Graph Cycle
- LCA in Binary Tree
- Maximum difference between node and its ancestor
- Lowest Common Ancestor in a BST
- Max sum path in two arrays
- The Celebrity Problem
- Largest subarray with 0 sum
- Topological Sort
- Vertical Tree Traversal
- Find the number of islands
- Linked List to Binary Tree
- Check if subtree
- Dijkstra Algorithm
- Minimum Swaps to Sort
- Palindrome Linked List
- Strongly Connected
- Rat in a Maze
- Max sum subarray by removing at most one element
- Closest in BST
- Merge two BST 's
- Count distinct elements in every window
- k-Anagram
- Bridge edge in a graph
- Find triplets with zero sum
- Top View of Binary Tree
- Find Common Nodes in two BSTs
- Level order traversal
- Peak element
- Polynomial Addition
- Merge Sort for Linked List
- Binary Tree to CDLL
- Counting elements in two arrays
- Foldable Binary Tree
- Count the nodes at distance K from leaf
- Insert in Sorted way in a Sorted DLL
- Maximum path sum
- Predecessor and Successor
- Children Sum in a Binary Tree
- Find length of Loop
- Convert Level Order Traversal to BST
- ZigZag Tree Traversal
- Count Number of SubTrees
- Vertical Width of a Binary Tree
- C++ Generic sort
- Coin Change - Minimum number of coins
- Pairwise swap of nodes in Linked List
- Swap Kth nodes from ends
- Maximum Non-Adjacent Nodes Sum
- Mother Vertex
- Rabin Karp - Pattern Searching
- Floor in BST
- Ceil in BST
- Pair Sum in BST
- Count set bits
- Reverse array in groups
- Smallest Positive Missing
- Power Of Numbers
- Maximum occured integer
- Wave Array
- Possible Words From Phone Digits
- Rotate and delete
- Rearrange Array Alternately
- Rearrange an array with O(1) extra space
- Maximum Index
- Stock buy and sell
- Rotate Array
- Check if array is sorted and rotated
- Kadane's Algorithm
- Majority Element
- Count Inversions
- Two Repeated Elements
- Unique BST's
- Union of 2 Sorted Arrays
- Indexes of Subarray Sum
- Count the number of possible triangles
- Sort by Absolute Difference
- Triplet Sum in Array
- Number of pairs
- Merge Without Extra Space
- Merge three sorted arrays
- Closer to sort
- Possible paths between 2 vertices
- Level of Nodes
- Make Matrix Beautiful
- Boolean Matrix
- Spirally traversing a matrix
- Search in a sorted Matrix
- Rotate by 90 degree
- Determinant of a Matrix
- Distance of nearest cell having 1
- Unit Area of largest region of 1's
- Subarray with 0 sum
- Subarray range with given sum
- Subarrays with equal 1s and 0s
- Sort Elements by Decreasing Frequency
- Longest Consecutive Subsequence
- Strings Rotations of Each Other
- Case-specific Sorting of Strings
- Lexicographic Rank Of A String
- Postfix Evaluation
- Stock span problem
- Next Greater Element
- Infix to Postfix
- Kth largest element
- Kth smallest element
- Activity Selection
- Fractional Knapsack
- Job Sequencing Problem
- Minimum Platforms
- Largest number in K swaps
- Rat Maze With Multiple Jumps
- Black and White
- Target Sum Combinations
- Unique Subsets
- M-Coloring Problem
- Minimum Jumps
- Detect Cycle using DSU
- Minimum Spanning Tree using Kruskal
- Ways to write n as sum
- Stickler Thief
- Ways to Reach the n'th Stair
- Egg Dropping Puzzle
- Optimal Strategy For A Game
- nCr
- Sum of all substrings of a number
- Longest Increasing Subsequence
- Longest Common Subsequence
- 0 - 1 Knapsack Problem
- Tie Breaker
- Forward list deletion in C++
- Lexicographical Rank Of String
- Minimum Vertical Sum
- Range Sum Queries
- Lucky Numbers
- Prime At Prime Index
- Range Min Max Queries
- Subarray sum
- Range Longest Correct Bracket Subsequence Queries
- Range GCD Queries
- Range LCM Queries
- Number of Unique Paths
- Minimum number of jumps
- Minimum Step Destination
- Equal Sum Partition
- Sort according to an Array
- Allocate Minimum Pages
- Shopkeeper Profit
- Preorder to BST
- X Total Shapes
- Zero Sum Subarrays
- Find whether path exist
- Kth Smallest
- Implement Trie
- Nth number made of prime digits
- Shortest Common Supersequence
- Nth Catalan Number
- Rotten Oranges
- Steps by Knight
- Most frequent word in an array of strings
- Smaller on Right
- Count only Repeated
- Camel Case
- Renaming Cities
- Longest Subarray Of Evens And Odds
- Maximum Sum Subarray
- Maximize The Cut Segments
- Word Search
- Maximum Water Between Two Buildings
- Sort 0s, 1s and 2s
- Maximum Index
- Maximum Product Subarray
- Longest subarray with sum divisible by K
- Sort in specific order
- Longest Subarray with Sum K
- Next Smaller Element
- Cutting Binary String
- k largest elements
- Arranging the array
- Rod Cutting
- Find the number of subarrays having even sum
- Minimize the Heights II
- First and Last Occurrences
- Permutations of a String
- CamelCase Pattern Matching
- Subarrays Product Less than K
- Largest prime factor
- Santa Banta
- Next Prime Number
- Find distinct elements
- Number of ways
- Brain Game
- How Many X's?
- Stream First Non-repeating
- Josephus Circle using List
- Rohan's Love for Matrix
- Express as sum of power of natural numbers
- Shortest Source to Destination Path
- Function Template
- Sort for Singly Linked List
- Anti Diagonal Traversal of Matrix
- Remove and Reverse
- Find k-th smallest element in given n ranges
- Even Swap
- Reverse a Stack
- Max Equal sum of 3 Stacks
- Wine Buying and Selling
- Shortest path in Directed Acyclic Graph
- Hands of Straights
- Length of the longest subarray with positive product
- Count number of free cell
- Minimum Days
- Apple Sequences
- Connect Nodes at Same Level
- Unique Paths in a Grid
- Valid Compressed String
- Fill the Matrix
- Number of Good Components
- Optimal Array
- Best Node
- Update Queries
- Maximum Intersecting Lines
- String rp or pr
- Knight in Geekland
- Shy Geek
- Count Special Numbers
- Minimum Steps Required
- Count Cyclic Paths
- Maximum Triplet product
- Second smallest number
- Special Palindrome Substrings
- Maximum Possible Value
- Distinct Difference
- Anagrams in Linked List
- Yet another query problem
- Geek hates too many 1s
- Maximum Length
- Remove the balls
- Unequal Arrays
- Job Sequencing Problem
- Bheem Wants Ladoos
- Prefix Suffix String
- Smaller Sum
- Shortest XY distance in Grid
- BST Maximum Difference
- Nearest smaller tower
- Another Coin Change Problem
- Geek's Village and Wells
- Find Number
- Powerful Integer
- Max Coins
- Good Subtrees
- Subtree In N-ary Tree
- Easy Task
- Add Minimum Characters
- Maximum subset sum
- Palindrome with minimum sum
- Count Total Setbits
- Tree Transformation
- Construct a Full Binary Tree
- Modify Linked List-1
- Find Kth permutation
- Fraction pairs with sum 1
- Get the Shadow
- Last Fairy Standing
- Print Linked List
- Find Length of Linked List
- Check for Binary String
- Size of Binary Tree
- Count Leaves in Binary Tree
- Queue using Linked List
- Queue Using Array
- Replace all 0's with 5
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Preorder Traversal
- First Occurence
- Palindromic Array
- Linked List Insertion At End
- Increment a variable
- Is Linked List Length Even?
- Identical Linked Lists
- Sum of Binary Tree
- Insert in Middle of Linked List
- Count Non-Leaf Nodes in Tree
- C++ STL List
- C++ Classes Introduction
- Alternates in an Array
- C++ Inheritance introduction
- C++ Call by reference
- Start Coding
- Count Odd and Even
- Sort and Reverse Vector
- Front to Back
- Stack designer
- Queue Push & Pop
- Parties and seats
- Set Operations
- Map Operations
- Who has the majority?
- Strongest Neighbour
- Array insert at index
- Array insert at end
- Struct area
- Operations on Stack
- Operations on Queue
- Absolute Value
- Convert Celsius To Fahrenheit
- Quadratic Equation Roots
- Bit Difference
- Number is sparse or not
- Print 1 To N Without Loop
- Array Search
- Sorted Array Search
- Left Index
- Adding two matrices
- Multiply the matrices
- Binary String
- Remove common characters and concatenate
- Sum of Digits of a Number
- Power Using Recursion
- Fibonacci Using Recursion
- Addition Under Modulo
- Multiplication Under Modulo
- Print Array Elements Using Recursion
- The Sequence
- GCD Euclid
- Insert In Stack
- Reverse Array Using Stack
- Preorder in BST
- Inorder in BST
- Postorder in BST
- Levelorder in BST
- Length of String
- Count Distinct Vowels in String
- Count Words in String
- Reverse a String
- Lowercase to Upercase
- Panagram Checking
- Missing Characters in Panagram
- Pairing elements
- Make pair
- Vector insertion
- Sort Vector of Pairs
- Forward List Insert
- Insertion in deque
- Maximize Number of Toys
- Distinct Sorted
- Sorted Frequency
- Vector max_element
- Search set element using find.
- Vector fill
- Search element in Vector
- upper and lower bounds of an element
- Heapify the vector
- Permutations of string
- Remove from vector
- Sort and reverse
- Set bits in N
- Vector Erase and Clear
- Forward List Erase After
- Deque Traversal
- Unordered Set Hash Function
- Unordered Set Size Function
- Unordered Set Swap Function
- Unordered Set Find Duplicate
- Queue Traversal
- Vector Shrink To Fit
- Vector Sum
- Keypad typing
- First n Fibonacci
- Get Element At Index
- Maximum and Minimum In Array
- Print Linked List
- Sum The Nodes of Linked List
- Maximum And Minimum In Linked List
- Search In Linked List
- Linked List Insertion At Position
- Display Circular Linked List
- Length of Circular Linked List
- Display Doubly Linked List
- Doubly Linked List Head Insert
- Doubly Linked List Tail Insert
- Display Circular Doubly Linked List
- Implement Dequeue Using Linked List
- C++ Hello World
- Palindrome Array
- Sum of Array
- Sum of Natural Numbers
- Searching in an Array
- Print Elements of Array
- Elements before which no element is bigger
- At least two greater elements
- Sort a String
- Value equal to index value
- Check String
- Remove characters from alphanumeric string
- Remove vowels from string
- Reverse sub array
- Sum of distinct elements
- Count type of Characters
- Swap kth elements
- Lower case to upper case
- Smaller and Larger
- Remove Spaces
- First 1 in a Sorted Binary Array
- Missing number in shuffled array
- Max and Min Product from 2 Arrays
- Display longest name
- Find element at a given Index
- Upper Case Conversion
- Largest Element in Array
- Rotate Array by One
- Game with nos
- Split Strings
- Array Subset
- C++ Strings
- Count of smaller elements
- Min and Max in Array
- Positive and negative elements
- Print first letter of every word in the string
- Remove character
- Convert String to LowerCase
- Delete alternate characters
- Reverse a String
- Magical String[Duplicate Problem]
- GCD of two numbers
- 1s Complement
- Decision Making in Java
- House Robber
- The If Statement
- Median of an Array
- Factorial
- Binary number to decimal number
- The Else Statement
- Input Integer
- Print Statement
- Print With Space
- C++ 2-D Arrays | Set-1
- Print With Separator
- Swap The Numbers
- Arithmetic Operators
- Bitwise Operators
- Print Without Space
- Matching Pair
- Evaluate Formulae
- Table Difference
- Print Square
- Sum of N Numbers
- Factorial
- Divisor
- Function With Return Value
- GCD
- For Loop - 2
- While Loop
- Height of Heap
- Repetitive Addition Of Digits
- Half N by M
- Make a Distinct Digit Array
- Minimum difference pair
- Sum of product of x and y with floor(n/x) = y
- The Else if Statement
- For Loop - 1
- Print Square wall
- Inverted Right AngleTriangle
- Reverse String
- Fibonacci Number
- Function With No Arguments
- Java Switch Case statement
- Function With Arguments
- Find Pattern
- Slice The String
- Array Traversal
- Constructor
- Vowels in String
- Bitwise Right Shift
- Last Digit of a number
- Switch Statement
- LCM
- Print GeeksForGeeks
- Search vector element using find.
- Sorted matrix
- Logical Operators
- Self referential structures
- Implement Union
- Print GeeksForGeeks with quotes
- Print Boolean value
- Size of an Array
- Compare two numbers
- Find if +ve, -ve or 0
- Pattern 11
- Pattern 13
- Naughty Geek
- Rotation
- CPP - Have fun with XOR
- CPP - Product of array elements
- CPP - Search in an array
- CPP - Have Fun With OR
- CPP - Sum of upper and lower triangles
- Resize a String
- CPP - Isogram
- Time Travel
- Binary Tree to DLL
- Clone List with Next and Random
- Serialize and deserialize a binary tree
- LRU Cache
- Fixing Two nodes of a BST
- Huffman Decoding
- Pattern Search KMP
- Trapping Rain Water
- Max Circular Subarray Sum
- Pattern Search
- Smallest window containing all characters
- Histogram Max Rectangular Area
- Max of min for every window size
- Solve the Sudoku
- Strongly connected component (Tarjans's Algo)
- Largest Sum Contiguous Subarray in Range
- First Greater Height
- Minimum Cost Path
- Median of Two sorted arrays
- Contiguous Elements XOR
- Burning Tree
- Count Smaller elements
- Strictly Increasing Array
- Median in a row-wise sorted Matrix
- Word Break - 2
- Minimum X (xor) A
- Find number of closed islands
- Count the number of subarrays
- Expression Add Operators
- Fixing Two swapped nodes of a BST
- Shortest Path Using Atmost One Curved Edge
- Avoid Explosion
- Walls Coloring II
- Redundant Parenthesis
- Partition the Array
- Count Binary Strings With No Consecutive 1s
- Divide in Incremental Groups
- Max min Height
- Maximum Number of coins
- Median of the Subarrays
- Minimum BST Sum Subtree
- Special Digits
- Cake Distribution Problem
- Game Of Subsets