- Sum of array elements
- Search an Element in an array
- Print Elements of Array
- Immediate Smaller Element
- Binary Array Sorting
- Second Largest
- Smaller and Larger
- Average
- Check if an array is sorted
- Equal to product
- Segregate 0s and 1s
- Overlapping rectangles
- Rotating an Array
- Multiply Array
- Reverse array in groups
- Professor and Parties
- Find duplicates under given constraints
- Form largest number from digits
- Compete the skills
- Print the left element
- Sum of elements in a matrix
- Display longest name
- C++ Arrays (Sum of array) | Set 1
- C++ Array (print an element) | Set 2
- Floyd's triangle
- GCD of two numbers
- Largest Element in Array
- Cyclically rotate an array by one
- Sum Triangle for given array
- Print an array in Pendulum Arrangement
- Java Arrays | Set 1
- Find the smallest and second smallest element in an array
- Find minimum and maximum element in an array
- Find second largest element
- Find Index
- Balanced Array
- Check if a string is Isogram or not
- Fighting the darkness
- Remove repeated digits in a given number
- Minimum number to form the sum even
- Merge two strings
- Find Unique pair in an array with pairs of numbers
- Perfect Arrays
- Perfect Array
- Product of maximum in first array and minimum in second
- Countries at war
- Multiply left and right array sum.
- Bubble Sort
- Selection Sort
- Binary Search
- Replace all ‘0’ with ‘5’ in an input Integer
- Third largest element
- Palindromic Array
- Minimum element in BST
- Maximum in Struct Array
- Print alternate elements of an array
- Product of array element

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Shibhu

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Overall Coding Score: 1497

Monthly Coding Score: 246

Weekly Coding Score: 0

- Reverse an Array
- Frequency of Array Elements
- Maximum and Minimum Of Array Elements
- Factorial
- Sum of Array
- Sum of Series
- Searching a number
- Power of 2
- Sieve of Eratosthenes
- Shortest path from 1 to n
- Count possible triangles
- Rotate Array by n elements
- Fascinating Number
- Count increasing Subarrays
- Rearrange Array Alternately
- Missing number in array
- Array of alternate +ve and -ve no.s
- Maximum product of two numbers
- Value equal to index value
- Boolean Matrix Problem
- Reverse sub array
- Sum of distinct elements
- Max Sum without Adjacents
- Swap kth elements
- Ugly Numbers
- Number of occurrence
- k largest elements
- Remove recurring digits
- Leaders in an array
- Possible groups
- Absolute distinct count
- Generate Binary Numbers
- Count the numbers
- Find the Odd Occurence
- Total distance travelled in an array
- Minimum sum
- Even occurring elements
- Missing ranges of numbers
- Who Will Win?
- Total count
- Surpasser Count
- How many pizzas ?
- Merge and Sort
- Rearranging array
- Mega Sale
- Maximize sum after K negations
- Pairs with given XOR
- Padovan Sequence
- Equal Point in Sorted Array
- Elements before which no element is bigger
- Sum of elements between k1'th and k2'th smallest elements
- Minimize the sum of product
- Make a Distinct Digit Array
- Chocolate Distribution Problem
- Demonitisation
- Permutations in array
- At least two greater elements
- Form a Triangle
- Drive the car
- Largest subarray with GCD one
- King's War
- Find first and last occurrence of x
- Type of array
- Ladoo problem
- Sum of dependencies in a graph
- Stuffs Division
- Sort in specific order
- Check if two arrays are equal or not
- Sherlock a Detective
- Unique Numbers
- Learning Output
- Rahul lucky-unlucky
- Minimize sum of alternate product
- Find first repeated character
- A guy with a mental problem
- Fake Profile
- Check if divisible by 5
- Does array represent Heap
- Missing number in shuffled array
- Largest Fibonacci Subsequence
- Last index of One
- Arranging the array
- Common elements
- Tracks
- First element to occur k times
- Fill array with 1's
- Remove Duplicates from unsorted array
- Uncommon characters
- Minimum sum of two elements from two arrays
- Count of smaller elements
- Four Elements
- Faulty wiring and Bulbs
- Count the elements
- Minimum move to front operations
- Balance with respect to an array
- Pair array product sum
- Equivalent Sub-Arrays
- Count pair sum
- First Come First Serve
- K-th distinct element
- Friendly Array
- Largest Permutation
- Check Arithmetic Progression
- Jumping Caterpillars
- Twice counter
- Longest Common Prefix in an Array
- In First But Second
- Minimum Distinct Ids
- Anagram Palindrome
- Smallest number repeating K times
- String Subsequence Game
- Absolute Difference of 1
- Count the characters
- Repeated Character
- Sort String
- Difference between highest and lowest occurrence
- Find unique element
- Find the fine
- Minimum Product of k Integers
- Sort the string in descending order
- Count number of elements between two given elements in array
- Find the closest number
- Distinct Elements in a Stream
- Print K smallest elements in their original order
- Tiger Zinda Hai
- Remove consonants from a string
- Earthquake and the Paint Shop
- Winner of an election where votes are represented as candidate names
- Most frequent word in an array of strings
- Numbers with prime frequencies greater than or equal to k
- Last duplicate element in a sorted array
- 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?
- Tywin's War Strategy
- Ishaan Loves Chocolates
- Maximum number of partitions that can be sorted individually to make sorted
- Strange Sort
- Sorting all array elements except one
- Fitting The Array
- K-th missing element
- Height of Heap
- Average Count Array
- 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
- Merge Sort
- Quick Sort
- Mirror Tree
- Two Mirror Trees
- Height of Binary Tree
- Heap Sort
- Finding middle element in a linked list
- Circular Linked List
- Sum Tree
- Postorder Traversal
- Implement Stack using Linked List
- Implement stack using array
- Implement Queue using Linked List
- Implement Queue using array
- Print all nodes that don’t have sibling
- Insert a node in Doubly linked list
- Remove duplicate elements from sorted Array
- Replace all 0's with 5
- Equilibrium index of an array
- Largest product
- Preorder Traversal
- C++ STL | Set 4 (stack)
- C++ STL | Set 5 (queue)
- Search a node in BST
- Implement Atoi
- Repetition of k length substring
- Find Number of Numbers
- Minimum distance between two numbers
- Count distinct elements in every window
- Find triplets with zero sum
- Level order traversal
- Operating an array
- Linked List Insertion
- Operating a sorted array
- Insert in a Sorted List
- Play with an array
- Ancestors in Binary Tree
- Root to Leaf Paths
- Circular Linked List Traversal
- Linked List Length Even or Odd?
- Delete Alternate Nodes
- Identical Linked Lists
- Merge Lists Alternatingly
- Find the Sum of Last N nodes of the Linked List
- Modular Node
- Find n/k th node in Linked list
- Queue Reversal
- Triplet Family
- Sum of Binary Tree
- Magical Number
- Sum of Leaf Nodes
- Insert in Middle of Linked List
- Pairwise Consecutive Elements
- Count Non-Leaf Nodes in Tree

- Adding One
- Pascal Triangle
- Maximum Gap
- Pattern Searching
- Print Pattern
- Parenthesis Checker
- a^b(Set 2)
- Pythagorean Triplet
- Sum of Digit is Pallindrome or not
- Doubling the value
- Subset Sum Problem
- Possible words from Phone digits
- 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
- Maximum of all subarrays of size k
- Array to BST
- Inversion of array
- Maximum Difference
- Lucky Number
- Subarray with given sum
- Stock span problem
- Inorder Traversal and BST
- Possible paths
- Chinky and diamonds
- Longest Common Increasing Subsequence
- Valid Substring
- Count the Reversals
- Next larger element
- Equilibrium point
- Floor in a Sorted Array
- Equal 0, 1 and 2
- Min sum formed by digits
- String Manipulation
- Binary Tree K level sum
- Sum of k smallest elements in BST
- Flood fill Algorithm
- Tom and String
- Longest K unique characters substring
- Decode the string
- Max sum in sub-arrays
- Love For The Twins
- Recaman’s sequence
- Find all pairs with a given sum
- Check if frequencies can be equal
- Shortest distance in infinite tree
- Rahul and his Villa
- Zero Sum Subarrays
- Smallest window in a string containing all the characters of another string
- Evaluation of Postfix Expression
- Maximum difference Indexes
- Infix to Postfix
- Transitive closure of a Graph
- Array Subset of another array
- Count the paths
- First negative integer in every window of size k
- Merge two binary Max heaps
- Subarray with 0 sum
- Group Anagrams Together
- Sum equals to Sum
- Sorted matrix
- Top k numbers in a stream
- Second most repeated string in a sequence
- Firing employees
- Find pairs with given relation
- Find distinct elements
- Sum of length
- Sort by Absolute Difference
- BBT counter
- Rotten Oranges
- Swapping pairs make sum equal
- Minimum indexed character
- Find the most frequent digit
- Maximum possible sum
- K-Ary Tree
- Adding Array Elements
- Completing tasks
- Maximum prefix sum for a given range
- Numbers containing 1, 2 and 3
- Ana and Sweets
- Incomplete Array
- Sum Indexes
- GeeksforGeeks New System
- Cereals Box
- Maximum number of characters between any two same character
- Frequency of each element in an unsorted array
- Winner of an election
- Count of substrings containing K ones
- Morning Assembly
- Non-Repeating Element
- Smallest subarray with all occurrences of a most frequent element
- Maximum distinct elements after removing K elements
- Word with maximum frequency
- Check if array contains contiguous integers with duplicates allowed
- Rearrange an array such that arr[i] = i
- Maximum height of the staircase
- Villain Con
- Pair the minimum
- String Modification
- Easy string
- Count pairs Sum in matrices
- Convert a sentence into its equivalent mobile numeric keypad sequence
- Find the closest pair from two arrays
- The Inverting Factor
- Longest substring with equal number of 0s and 1s
- Charul and vessels
- Print Bracket Number
- Searching in an array where adjacent differ by at most k
- Palindromic Series
- The Optimal Selection
- Check if any valid sequence is divisible by M
- Reaching the heights
- Delete array elements which are smaller than next or become smaller
- Reducing Walls
- Lucky Ishaan
- Smallest greater elements in whole array
- Eulerian Path in an Undirected Graph
- Maximum Perimeter of Triangle from array
- Save Ironman
- Print adjacency list
- SPP - Palindrome Family
- 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 by swapping data
- 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
- Rearrange linked list in-place
- 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
- Right View of Binary Tree
- K distance from root
- Maximum Width of Tree
- Delete without head pointer
- Diameter of Binary Tree
- Check for Balanced Tree
- n'th node from end of linked list
- Left View of Binary Tree
- Delete Middle of Linked List
- Merge two sorted linked lists
- Decimal Equivalent of Binary Linked List
- Transform to Sum Tree
- Intersection of two sorted Linked lists
- 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 a Graph
- Boundary Traversal of binary tree
- Reverse alternate levels of a perfect binary tree
- Insert a node in a BST
- BFS traversal of graph
- Lowest Common Ancestor in a Binary Tree
- Determine if Two Trees are Identical
- Root to leaf path sum
- Postorder traversal from given Inorder and Preorder traversals
- Absolute List Sorting
- Lowest Common Ancestor in a BST
- Implement two stacks in an array
- Level order traversal Line by Line
- Print BST elements in given range
- Largest subarray with 0 sum
- Print a Binary Tree in Vertical Order - Code wrong
- Minimum Depth of a Binary Tree
- Binary Tree to BST
- Get minimum element from stack
- Unique rows in boolean matrix
- Serialize and Deserialize a Binary Tree
- Leaf at same level
- Is Binary Tree Heap
- Subtraction in Linked List
- Match specific pattern
- Multiply two linked lists
- Expression Tree
- Maximum Difference
- Check if Linked List is Palindrome
- Max distance between same elements
- Check whether BST contains Dead End
- Delete a Node in Single Linked List
- Kth largest element in BST
- Find duplicates in an array
- Multiply two polynomials II
- Check if two strings are k-anagrams or not
- Max Level Sum in Binary Tree
- Special Stack
- Root to leaf paths sum
- Print Nodes having K leaves
- Sort a stack
- Longest consecutive sequence in Binary tree
- Print Common Nodes in BST
- Peak element
- Inorder Successor in BST
- Delete nodes greater than k
- Index Of an Extra Element
- Merge Sort for Linked List
- Sum of given range
- Convert Ternary Expression to Binary Tree
- Maximum Bipartite Matching
- Union of Two Linked Lists
- Intersection of Two Linked Lists
- Split Singly Linked List Alternatingly
- Level of a Node in Binary Tree
- Sum of leaf nodes in BST
- Maximum path sum
- Counting Sort
- Max and min element in Binary Tree
- Perfect Binary Tree
- XOR Linked List
- Reverse a string using Stack
- Linked List that is Sorted Alternatingly
- XOR of a given range
- Full binary tree
- Modify Linked List-1
- Triplet with 0 sum in BST
- Symmetric Tree
- Construct Tree from Inorder & Preorder
- Construct BST from Postorder
- Arrange Consonants and Vowels
- Huffman Decoding-1
- Vertical sum
- Next Right Node
- Count Pairs whose sum is equal to X
- Insert in Sorted way in a Sorted DLL
- Check if Tree is Isomorphic
- Depth of node
- pth common ancestor in BST
- Predecessor and Successor
- Leaves to DLL
- 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
- 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 Right Leaf Nodes
- Sum of Left Leaf Nodes
- Deletion in a Binary Tree
- Nodes at Odd Levels
- Closest Neighbor in BST
- Brothers From Different Roots
- Sum of the Longest Bloodline of a Tree
- Exchange the Leaf Nodes
- Kth Ancestor in a Tree
- Check if two Nodes are Cousins
- ZigZag Tree Traversal
- Sum of Leaf Nodes at Min Level
- C++ STL Priority Queue
- Tilt of Binary Tree
- Move all zeros to the front of the linked list
- Delete middle element of a stack
- Vertical Width of a Binary Tree
- Rotate doubly Linked List by P nodes

- Kadane's Algorithm
- Find Missing And Repeating
- Maximum Sub Array
- Maximum Rectangular Area in a Histogram
- Minimum Cost of ropes
- Preorder to Postorder
- Smallest number on left
- Longest consecutive subsequence
- Maximum Sum Subsequence of length k
- Preorder Traversal and BST
- Card Rotation
- Super Primes
- Smallest Sub-Array
- Satisfy the equation
- Circle of strings
- Unique BST's
- K’th smallest element
- Easy Query
- Check if a string is repetition of its substring of k-length
- Hamiltonian Path
- Count the Number of Full Binary Trees
- Snake and Ladder Problem
- Shortest Source to Destination Path
- Divisibility tree
- Trie | (Insert and Search)
- Knight Walk
- Find all four sum numbers
- Word Boggle
- Print leaf nodes from preorder traversal of BST
- Distance of nearest cell having 1
- Find whether path exist
- Check Mirror in N-ary tree
- Length of largest region of 1's
- Rearrange characters
- First non-repeating character in a stream
- Stepping Numbers
- Kth largest element in a stream
- Magnet Array Problem
- Smallest distinct window
- Floyd Warshall
- Huffman Encoding
- Nearly Sorted Algorithm
- Optimal binary search tree
- Image Multiplication
- CamelCase Pattern Matching
- Steps by Knight
- Mail System Design
- Numbers with alternative 1's
- Pairs of Non Coinciding Points
- Maximum Tip Calculator
- Fill the Tank
- Longest subarray with sum divisible by K
- Count subarrays with equal number of 1’s and 0’s
- Longest Sub-Array with Sum K
- The Fibonacci-prime number
- Save Winterfell
- Nitika and her queries
- Geek and Strings
- Water Connection Problem
- Print Binary Tree levels in sorted order
- Save Gotham!
- Maximize the sum of selected numbers from an array to make it empty
- Akku and Arrays
- Construct binary palindrome by repeated appending and trimming
- Element left after performing alternate OR & XOR operation
- Range Queries for Longest Correct Bracket Subsequence
- 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
- Bottom View of Binary Tree
- 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
- 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
- Operations on Binary Min Heap
- Topological sort
- Merge K sorted linked lists
- Find the number of islands
- Circular tour
- Max rectangle
- Make Binary Tree
- 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)
- Minimum Spanning Tree
- Largest BST
- Minimum Swaps
- Count of distinct substrings
- Strongly Connected Components (Kosaraju's Algo)
- Longest Consecutive Subsequence
- Bipartite Graph
- Number of root to leaf paths
- Find the Closest Element in BST
- Delete keys in a Linked list
- Merge two BST 's
- Trie | (Delete)
- Merge k Sorted Arrays
- Length of longest palindrome in linked list
- Bridge Edge in Graph
- Duplicate subtree in Binary Tree
- Top View of Binary Tree
- Smallest range in K lists
- k-th smallest element in BST
- Polynomial Addition
- Euler Circuit in a Directed Graph
- Euler circuit and Path
- Merge Sort on Doubly Linked List
- Binary Tree to CDLL
- Find a pair with given target in BST
- Complete Binary Tree
- Populate Inorder Successor for all nodes
- Range LCM Queries
- 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
- Largest Independent Set Problem
- Median of BST
- Number of Turns in Binary Tree
- Right Sibling in Binary Tree
- Duplicate Subtrees
- Construct Tree from Preorder Traversal
- Construct a Full Binary Tree
- Convert Level Order Traversal to BST
- Count Number of SubTrees having given Sum
- Largest Sum Contiguous Subarray in Range
- Path Count in Directed Graph
- C++ Generic sort

- Maximum of minimum for every window size
- Head to Tail ordering
- A Simple Fraction
- X Total Shapes
- Longest valid Parentheses
- Find median in a stream
- Phone directory
- Joey doesn't share food
- Doctor Strange
- Kill Captain America
- QuickSort on Doubly Linked List
- Reorder List
- Binary Tree to DLL
- Tree from Postorder and Inorder
- LRU Cache
- AVL Tree Insertion
- Alien Dictionary
- AVL Tree Deletion
- Nodes at given distance in binary tree
- Fixing Two nodes of a BST