A
aatif
STREAK
00/1473
days
Longest streak/Global longest streak
Language Used
C++
Coding Score
655
Problem Solved
266
Contest Rating
__
87 points
Contributor
87 points
Contributor
1 Point
Proficient
Proficient
100 Point
Scholar
Scholar
1k Point
Master
Master
10k Point
Ace
Ace
50k Point
0 submissions in current year
SCHOOL (0)
BASIC (17)
EASY (105)
MEDIUM (131)
HARD (13)
- Reverse a linked list
- Frequency in a Linked List
- Delete N nodes after M nodes of a linked list
- Pairwise swap elements of a linked list
- Node at a given index in linked list
- Linked list of strings forms a palindrome
- Compare two linked lists
- Delete nodes having greater value on right
- Remove duplicates from an unsorted linked list
- Split a Linked List into two halves
- Inorder Traversal
- Reverse a Doubly Linked List
- Check for BST
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Two Mirror Trees
- 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
- Delete Middle of Linked List
- Transform to Sum Tree
- Intersection Sorted Linked Lists
- Find Transition Point
- Queue using two Stacks
- Remove Duplicates from a Sorted Linked List
- Stack using two queues
- Level Order in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- Stack using Linked List
- Implement stack using array
- BFS of graph
- Identical Trees
- Root to leaf path sum
- Nodes without a Sibling
- Insertion at doubly linked list
- Lowest Common Ancestor in a BST
- Remove Duplicates Sorted Array
- BST Keys in a Range
- Odd even level difference
- Binary Tree to BST
- Equilibrium index of an array
- Remove every k'th node
- Multiply two linked lists
- Josephus problem
- You and your books
- Delete in a Singly Linked List
- Kth largest element in BST
- Minimum distance in an Array
- Array Duplicates
- Max Level Sum in Binary Tree
- Special Stack
- Three way partitioning
- Longest consecutive sequence in Binary tree
- Index of an Extra Element
- Convert Ternary Expression to Binary Tree
- Intersection of Two Linked Lists
- Level of a Node in Binary Tree
- Max and min element in Binary Tree
- Perfect Binary Tree
- Symmetric Tree
- Huffman Decoding-1
- Find length of Loop
- Leaf under budget
- Linked List Matrix
- Sum of Leaf Nodes at Min Level
- First Set Bit
- Rightmost different bit
- Check K-th Bit
- Longest Consecutive 1's
- Power of 2
- Swap odd and even bits
- Equilibrium Point
- Array Leaders
- Reverse Words
- Minimum indexed character
- Non Repeating Character
- Generate Binary Numbers
- Minimum Cost of ropes
- Count number of hops
- Missing in Array
- Product array puzzle
- Missing And Repeating
- Pairs of equals Sum
- Sorted and Rotated Minimum
- Chocolate Distribution Problem
- Toppers Of Class
- Jumping Caterpillars
- Convert array into Zig-Zag fashion
- Check if array contains contiguous integers
- Element with left side smaller and right side greater
- Minimum Operations
- Nth Fibonacci Number
- Copy Set Bits in Range
- Number of Groups
- Adjacents are not allowed
- Raju and coins
- Increasing Sub Sequence
- Maximum Diamonds
- Largest zigzag sequence
- Sorting Elements of an Array by Frequency
- Rearrange characters
- Reverse alternate nodes in Link List
- Rotate a Linked List
- Sort a linked list of 0s, 1s and 2s
- Add Number Linked Lists
- Rearrange a linked list
- Add 1 to a Linked List Number
- Detect Loop in linked list
- Rearrange linked list in-place
- Insert in Sorted Circular Linked List
- Count BST nodes that lie in a given range
- Bottom View of Binary Tree
- Delete without head pointer
- Intersection in Y Shaped Lists
- Diameter of a Binary Tree
- Heap Sort
- Merge two sorted linked lists
- Add all greater values to every node in a BST
- Connect Nodes of Levels
- Flattening a Linked List
- 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
- Absolute List Sorting
- Two Stacks in an Array
- Largest subarray with 0 sum
- Topological sort
- Vertical Tree Traversal
- Merge K sorted linked lists
- Find the number of islands
- Get Min from Stack
- Serialize and deserialize a binary tree
- Gas Station
- Linked List to Binary Tree
- Is Binary Tree Heap
- Remove loop in Linked List
- Dijkstra Algorithm
- Minimum Spanning Tree
- Largest BST
- Sorted subsequence of size 3
- Maximum Difference
- Palindrome Linked List
- Delete keys in a Linked list
- Merge two BST 's
- Root to leaf paths sum
- Longest Palindrome in Linked List
- Print Nodes having K leaves
- Find triplets with zero sum
- Sort a stack
- Duplicate Subtree
- Top View of Binary Tree
- k-th Smallest in BST
- Find Common Nodes in two BSTs
- Level order traversal
- Peak element
- Polynomial Addition
- Delete nodes greater than k
- Ancestors in Binary Tree
- Binary Tree to CDLL
- Root to Leaf Paths
- Counting elements in two arrays
- K Sum Paths
- Leftmost and rightmost nodes of binary tree
- Modify Linked List-1
- Isomorphic Trees
- Predecessor and Successor
- Leaves to DLL
- Diagonal sum in binary tree
- Deletion and Reverse in Circular Linked List
- Count Number of SubTrees having given Sum
- Count set bits
- Smallest Positive Missing
- Wave Array
- Stock buy and sell
- Kadane's Algorithm
- Binary Array Sorting
- Unique BST's
- Indexes of Subarray Sum
- Spirally traversing a matrix
- Longest Consecutive Subsequence
- K Sized Subarray Maximum
- Kth smallest element
- Activity Selection
- Minimum Jumps
- Longest Increasing Subsequence
- Longest Common Subsequence
- Sort according to an Array
- Zero Sum Subarrays
- Rotten Oranges
- Steps by Knight
- Print Anagrams Together
- Excel Sheet | Part - 1
- Sort 0s, 1s and 2s
- Sum of Middle elements of two sorted arrays
- Single Among Doubles in a Sorted
- Search in Rotated Sorted Array
- Maximum Intervals Overlap
- Form the Largest Number
- Swapping pairs make sum equal
- Check if frequencies can be equal
- Form a palindrome
- Max Sum without Adjacents
- Magnet Array Problem
- Longest Common Substring
- Rod Cutting
- Fill array with 1's
- Longest Palindromic Subsequence
- Longest substring with equal number of 0s and 1s
- Permutations of a String
- Friends Pairing Problem
- Combination Sum - Part 2
- Max Sum Increasing Subsequence
- Coin Change (Count Ways)
- Gold Mine Problem
- Coin Change (Minimum Coins)
- Knapsack with Duplicate Items
- Temple Offerings
- nCr
- Maximum path sum in matrix
- Array Pair Sum Divisibility Problem
- Number of paths
- Find nth root of m
- Longest Repeating Subsequence
- Stream First Non-repeating
- Largest square formed in a matrix
- Kth Largest in a Stream
- Flood fill Algorithm
- Print Linked List
- Find Length of Linked List
- Size of Binary Tree
- Count Leaves in Binary Tree
- Queue using Linked List
- Queue Using Array
- Replace all 0's with 5
- First Occurence
- C++ STL | Set 5 (queue)
- Minimum element in BST
- Bit Difference
- Number is sparse or not
- Uncommon characters
- Extract Maximum
- GCD of Array
- Check set bits
- Set kth bit
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