Name

Aman Deep Singh

Institution

Rank in Institute

#3

Courses Attended

Campus Ambassador

Overall Coding Score: 1850

Monthly Coding Score: 319

Weekly Coding Score: 82

- Pythagorean Triplet
- Doubling the value
- Shortest path from 1 to n
- Rotate Array
- Permutations of a given string
- Missing number in array
- Number of paths
- Greater on right side
- Immediate Smaller Element
- Convert array into Zig-Zag fashion
- Minimum difference pair
- Generate Binary Numbers
- Angle between hour and minute hand
- Reverse array in groups
- Padovan Sequence
- Sum of dependencies in a graph
- Check if string is rotated by two places
- Find first set bit
- Find first repeated character
- Find the element that appears once in sorted array
- Check set bits
- Print first n Fibonacci Numbers
- Riya's Test
- Multiply left and right array sum.
- How Many X's?
- Count nodes of linked list
- Count Leaves in Binary Tree
- Height of Binary Tree
- Finding middle element in a linked list
- Circular Linked List
- Implement Stack using Linked List
- Implement stack using array
- Binary Search
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Implement strstr
- Implement Atoi
- Find Number of Numbers
- Play with an array
- Delete Alternate Nodes
- Identical Linked Lists
- Find the Sum of Last N nodes of the Linked List
- Insert in Middle of Linked List
- Count Non-Leaf Nodes in Tree

- Frequencies of Limited Range Array Elements
- Anagram
- Number of Unique Paths
- Wave Array
- Maximum Gap
- Print Pattern
- Rotation
- Search in a Rotated Array
- Rectangles in N*N Board
- Squares in N*N Chessboard
- Palindrome numbers
- Magic Number
- Maximize Toys
- Maximize Number of 1's
- 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
- 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
- Sum of Query I
- N meetings in one room
- Remove Duplicates
- Kth distance
- Addition of submatrix
- Maximum sum increasing subsequence
- Array to BST
- Sum of two numbers represented as arrays
- Facing the sun
- Triangular Number
- Max Sum without Adjacents
- Key Pair
- Add Binary Strings
- Product array puzzle
- Reverse Bits
- Swap bits
- Reach the Nth point
- Subarray with given sum
- Adjacents are not allowed
- Leaders in an array
- Swap all odd and even bits
- Max rope cutting
- Count number of hops
- Count pairs with given sum
- Inorder Traversal and BST
- Save Knights
- AND operation
- Segregate 0s and 1s
- Copy Set Bits in Range
- Triplet Sum in Array
- Three Great Candidates
- Reach a given score
- Overlapping rectangles
- Possible paths
- Minimum element in a sorted and rotated array
- Search in a matrix
- Number Of Open Doors
- Day of the week
- Largest power of prime
- Number of 1's in smallest repunits
- Shop in Candy Store
- Largest number possible
- Count the Zeros
- 0 - 1 Knapsack Problem
- Maximum Number of 1s
- Integral Points In Triangle
- Trail of ones
- Find the number of sub-arrays having even sum
- Skip the work
- Valid Substring
- Count the Reversals
- Extract the Number from the String
- Number of ways to find two numbers
- Cutted Segments
- Smallest number subset
- Number that are not divisible
- Game of Death in a circle
- Power of Numbers
- Arithmetic Number
- Ordering of strings
- Change Bits
- Raju and coins
- Permutation with Spaces
- Equilibrium point
- Floor in a Sorted Array
- Buildings receiving sunlight
- Finding Profession
- RegEx matching
- Max value
- Flip Bits
- Letter Writer
- Finding the numbers
- Count Increasing Subsequences
- Collecting Trees
- Equal 0, 1 and 2
- Adding Ones
- Lucas Number
- Pairs with specific difference
- Count Pairs in an Array
- Min sum formed by digits
- String Manipulation
- Help Nobita
- Maximum 0’s between two immediate 1’s
- Chocolate Distribution Problem
- Binary Tree K level sum
- Maximum Sum Bitonic Subsequence
- Knapsack with Duplicate Items
- Sum of k smallest elements in BST
- Last non-zero digit in factorial
- Reverse Coding
- Flood fill Algorithm
- Tom and String
- Decode the pattern
- Longest K unique characters substring
- Roman Number to Integer
- Maximum no of 1's row
- Decode the string
- Max sum in sub-arrays
- Gold Mine Problem
- Game of XOR
- Find Nth root of M
- Love For The Twins
- Sum of all substrings of a number
- Recaman’s sequence
- Minimum Operations
- Equal point in a string of brackets
- Find all pairs with a given sum
- Shortest distance in infinite tree
- Largest zigzag sequence
- Meta Strings
- Check if palindromic ignoring spaces
- Rahul and his Villa
- Temple Offerings
- Excel Sheet | Part - 2
- Find the string in grid
- Largest Fibonacci Subsequence
- Increasing Sub Sequence
- Longest Palindromic Subsequence
- Evaluation of Postfix Expression
- Common elements
- Recursive sequence
- Rod Cutting
- Element with left side smaller and right side greater
- Element in a Series
- Transitive closure of a Graph
- Array Subset of another array
- 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
- Subarrays with given sum
- Group Anagrams Together
- Number of divisors in a given range
- 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
- Minimum Deletions
- Shortest Common Supersequence
- Assign Mice Holes
- Large number division
- Find pairs with given relation
- Mr Modulo and Pairs
- Rearrange a string
- Sum of length
- Sub-Array sum divisible by K
- Number of Groups
- Swapping pairs make sum equal
- String Ignorance
- Count the number of ways to tile the floor of size n x m using 1 x m size tiles
- Minimum number of deletions and insertions.
- Minimum number of deletions to make a sorted sequence
- Minimum steps to minimize n as per given condition
- Minimum number of deletions.
- Longest alternating subsequence
- Count of strings that can be formed using a, b and c under given constraints
- Nth item through sum
- Shortest Uncommon Subsequence
- Broken blocks
- Find length of longest subsequence
- Find all distinct subset (or subsequence) sums
- Longest subsequence-1
- Sum of average of all subsets
- Maximum sum Problem
- Number of permutation with K inversions
- Minimum indexed character
- 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
- Maximum weight transformation of a given string
- Total number of non-decreasing numbers with n digits
- Power Set
- Even and odd elements at even and odd positions
- Find the most frequent digit
- Transform the array
- Power Of 2 and Subsequences
- Sum of Lengths of Non-Overlapping SubArrays
- Maximum possible sum
- Chocolate Station
- Common Subsequence
- K-Ary Tree
- Completing tasks
- Check if a Integer is power of 8 or not
- Maximize XOR
- Check if divisible by 10
- Ana and Sweets
- Sum Indexes
- GeeksforGeeks New System
- Set all the bits in given range of a number
- Next Happy Number
- Summed Matrix
- Fact Digit Sum
- Non-Repeating Element
- Closing bracket index
- Number of pairs with maximum sum
- Pairs which are Divisible by 4
- Split the Array
- Find winner of the Game of Nim
- Maximum distinct elements after removing K elements
- Maximum difference of zeros and ones in binary string
- Arya and The Great War
- Mystic Falls School
- Find out the Team
- Nearest multiple of 10
- Form a number divisible by 3 using array digits
- Check if array contains contiguous integers with duplicates allowed
- Rearrange an array such that arr[i] = i
- Winner of an election
- Extra Perfect Numbers
- Ease the Array
- Villain Con
- Amicable Pair
- Count ways to express N as the sum of 1,3 and 4
- Numbers with prime frequencies greater than or equal to k
- Counts Zeros Xor Pairs
- Easy string
- Swap every two bits in bytes
- Check if a number is divisible by 8
- XOR of two numbers after making length of their binary representations equal
- Hungry Pizza Lovers
- Mysterious Series
- Print all bitwise subsets of a number N
- Maximum sum of increasing order elements from n arrays
- Print Bracket Number
- Check if it is possible to survive on Island
- The Even Array
- The Modified String
- Minimum changes to make all substrings distinct
- Variation in Nim Game
- Delete array elements which are smaller than next or become smaller
- Minimal moves to form a string
- Save Ironman
- Penalty Shooters
- Print adjacency list
- SP - Palindrome Family
- Reverse a linked list
- Occurence of an integer in 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
- Merge 2 sorted linked list in reverse order
- Detect Loop in linked list
- Sorted insert for circular linked list
- Reverse a Doubly Linked List
- Merge Sort
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Two Mirror Trees
- Maximum Width of Tree
- Diameter of Binary 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
- Transform to Sum Tree
- Intersection of two sorted Linked lists
- Find Transition Point
- Queue using two Stacks
- Stack using two queues
- Level order traversal in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- 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
- Max sum path in two arrays
- Run Length Encoding
- 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
- Is Binary Tree Heap
- Match specific pattern
- Validate an IP Address
- Distinct occurrences
- Sorted subsequence of size 3
- Josephus problem
- You and your books
- Expression Tree
- Java Collection | Set 3 (HashMap) Part-2
- Check if Linked List is Palindrome
- Max distance between same elements
- Longest Consecutive Subsequence
- Repetition of k length substring
- Generate Grey Code Sequences
- Check whether BST contains Dead End
- Kth largest element in BST
- Minimum four sum subsequence
- Count distinct elements in every window
- Check if two strings are k-anagrams or not
- Max Level Sum in Binary Tree
- Special Stack
- Root to leaf paths sum
- Sort a stack
- String Modification
- 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
- Union of Two Linked Lists
- Intersection of Two Linked Lists
- Sum of leaf nodes in BST
- Root to Leaf Paths
- Maximum path sum
- Counting Sort
- Counting elements in two arrays
- Reverse a string using Stack
- Linked List that is Sorted Alternatingly
- Modify Linked List-1
- Triplet with 0 sum in BST
- Construct Tree from Inorder & Preorder
- Construct BST from Postorder
- Vertical sum
- Count Pairs whose sum is equal to X
- Check if Tree is Isomorphic
- Predecessor and Successor
- Maximum Node Level
- Children Sum Parent
- Diagonal Sum In Binary Tree
- Deletion and Reverse in Linked List
- Change of Key in BST
- Normal BST to Balanced BST
- Linked List Matrix
- Reverse First K elements of Queue
- Height of Spiral Tree
- Closest Neighbor in BST
- Brothers From Different Roots
- Check if two Nodes are Cousins
- ZigZag Tree Traversal
- Sum of Leaf Nodes at Min Level
- Delete middle element of a stack
- Rotate doubly Linked List
- The Pattern Matcher - Java
- Almost Equal -Java
- Even Subsets - Java
- Matrix Interchange - Java
- Consonants and Vowels check - Java
- Predict the Column - Java
- Xoring and Clearing - Java
- Pair in Java
- Maximum Area Rectangle
- Sum of Big Integers
- BigInteger Multiply
- ArrayList Operation
- Stack Operations
- Get min at pop
- Mother Vertex
- Print adjacency list
- Subarray with 0 sum
- Winner of an election
- Reverse words in a given string

- Coin Change
- Kadane's Algorithm
- Find Missing And Repeating
- Maximum Sub Array
- Print Diagonally
- Overlapping Intervals
- Maximum Index
- Next Permutation
- 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
- 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
- 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
- Sum of Query II
- Form a palindrome
- Inversion of array
- Preorder to Postorder
- Length of the longest substring
- Smallest number on left
- Longest consecutive subsequence
- Maximum Sum Path in Two Arrays
- Stock span problem
- Convert an array to reduced form
- Minimum steps to get desired array
- Subsequence matching
- Handshakes
- Tic-Tac-Toe
- Number to words
- Palindromic Array
- Betting game
- Is Binary Number Multiple of 3
- Possible groups
- Preorder Traversal and BST
- Card Rotation
- Max possible amount
- Coin Piles
- Satisfy the equation
- Maximum Profit
- Digit multiplier
- Circle of strings
- Nodes at even distance
- Build the smallest
- Your Social Network
- Largest number in K swaps
- Minimize the heights
- Next larger element
- X Total Shapes
- Total Decoding Messages
- Unique BST's
- Subsets
- Longest Prefix Suffix
- Kth smallest element
- Divisible by 8
- Longest Common Substring
- Check if a string is repetition of its substring of k-length
- Rotate and delete
- Negative weight cycle
- Hamiltonian Path
- Snake and Ladder Problem
- Recursively remove all adjacent duplicates
- Shortest Source to Destination Path
- Divisibility tree
- Partition a number into two divisible parts
- Knight Walk
- Find all four sum numbers
- Print leaf nodes from preorder traversal of BST
- Distance of nearest cell having 1
- Is Sudoku Valid
- Find whether path exist
- Largest prime factor
- 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
- Count subsequences of type a^i b^j c^k
- Stepping Numbers
- 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
- Floyd Warshall
- Huffman Encoding
- Nearly Sorted Algorithm
- Infix to Postfix
- Smallest Absolute Difference
- Geek collects the balls
- Smallest Positive missing number
- Maximum sum Rectangle
- Maximum Intervals Overlap
- Array Pair Sum Divisibility Problem
- Top k numbers in a stream
- Rotten Oranges
- LCS of three strings
- Longest Common Prefix in an Array
- Steps by Knight
- In First But Second
- Mail System Design
- Row with minimum number of 1's
- Matrix Chain Multiplication
- Maximum Tip Calculator
- Biconnected Graph
- Fill the Tank
- Longest subarray with sum divisible by K
- Subarrays with equal 1s and 0s
- Longest Sub-Array with Sum K
- The Tiny Miny
- String Conversion
- Save Gotham!
- Buying Vegetables
- Maximize the sum of selected numbers from an array to make it empty
- Construct binary palindrome by repeated appending and trimming
- Optimal Strategy For A Game
- Reverse a Linked List in groups of given size.
- Delete nodes having greater value on right
- 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
- 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
- Make Binary Tree From Linked List
- Extreme nodes in alternate order
- Kth element in Matrix
- Clone a Binary Tree
- Remove loop in Linked List
- Max length chain
- Largest BST
- Interleaved Strings
- Sum of permutations
- LRU Cache
- Minimum Swaps to Sort
- Rat in a Maze Problem
- Find the Closest Element in BST
- Delete keys in a Linked list
- Merge two BST 's
- Merge k Sorted Arrays
- Bridge Edge in Graph
- Print Nodes having K leaves
- Top View of Binary Tree
- Smallest range in K lists
- k-th smallest element in BST
- Polynomial Addition
- Find a pair with given target in BST
- K-Sum Paths
- Leftmost and rightmost nodes of binary tree
- Leaves to DLL
- Largest Independent Set Problem
- Construct Tree from Preorder Traversal
- Convert Level Order Traversal to BST
- Count Number of SubTrees having given Sum
- Operations on PriorityQueue
- Smallest Positive missing number
- Unique BST's
- Sorting Elements of an Array by Frequency
- Longest consecutive subsequence
- Parenthesis Checker