Data Structure
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36 submissions in current year
SCHOOL (1)
BASIC (22)
EASY (102)
MEDIUM (109)
HARD (24)
- Linked List Group Reverse
- Reorder List
- Clone List with Next and Random
- Subtraction in Linked List
- LRU Cache
- AVL Tree Insertion
- Nodes at given distance in binary tree
- Trapping Rain Water
- Search Pattern
- Number of distinct subsequences
- Wildcard string matching
- Sum-string
- Palindromic Partitioning
- Brackets in Matrix Chain Multiplication
- Distribute Candies
- Split Array Largest Sum
- Find the String
- Largest rectangular sub-matrix whose sum is 0
- Vertex Cover
- Candy
- Better String
- Median of the Subarrays
- Geekina Hate 1s
- Making A Large Island
- Reverse alternate nodes in Link List
- Rotate a Linked List
- Add Number Linked Lists
- Merge 2 sorted linked list in reverse order
- Detect Loop in linked list
- Insert in Sorted Circular Linked List
- Merge two sorted linked lists
- Implement stack using array
- Two Stacks in an Array
- Remove loop in Linked List
- Multiply two strings
- Implement Atoi
- BST with Dead End
- Count distinct elements in every window
- Duplicate Subtree
- Find Common Nodes in two BSTs
- Euler circuit and Path
- Binary Tree to CDLL
- K Sum Paths
- Count the nodes at distance K from leaf
- Normal BST to Balanced BST
- Power Of Numbers
- Wave Array
- Indexes of Subarray Sum
- Count the number of possible triangles
- Level of Nodes
- Boolean Matrix
- Determinant of a Matrix
- Subarray with 0 sum
- Strings Rotations of Each Other
- Fractional Knapsack
- Detect Cycle using DSU
- Stickler Thief
- Lucky Numbers
- Implement Trie
- Shortest Common Supersequence
- Container With Most Water
- Print Anagrams Together
- Top K Frequent in Array
- 4 Sum - All Quadruples
- Pascal Triangle
- Number of subarrays with maximum values in given range
- Consecutive 1's not allowed
- Pythagorean Triplet
- Painting the Fence
- Longest subarray with sum divisible by K
- Check if a string is repetition of its substring of k-length
- Column name from a given column number
- Substrings with K Distinct
- Longest Subarray with Sum K
- Max Sum without Adjacents
- Shuffle integers
- Sum of XOR of all pairs
- Longest substring with distinct characters
- LCS of three strings
- Largest Sum Subarray of Size at least K
- Minimize the Heights II
- Transform to prime
- First and Last Occurrences
- Minimum Deletions
- Bleak Numbers
- Game of XOR
- Modified Game of Nim
- Maximize dot product
- Max Sum Increasing Subsequence
- Sequence of Sequence
- Gold Mine Problem
- Perfect Sum Problem
- Knapsack with Duplicate Items
- Partition Equal Subset Sum
- Count possible ways to construct buildings
- Count digit groupings of a number
- Array Pair Sum Divisibility Problem
- Number of paths
- Count even length
- Smith Number
- How Many X's?
- Transitive closure of a Graph
- Techfest and the Queue
- Largest subsquare surrounded by X
- Subarrays with sum K
- Find duplicate rows in a binary matrix
- Paths from root with a specified sum
- Shortest Prime Path
- Sort for Singly Linked List
- Anti Diagonal Traversal of Matrix
- Unique Number III
- All Unique Permutations of an array
- Course Schedule
- Remove and Reverse
- Even Swap
- Maximum Meetings in One Room
- Buy Maximum Stocks
- Graph is Tree or Not
- Number Of Enclaves
- Eventual Safe States
- Maximum Sum Combination
- Floor in BST
- Find the first node of loop in linked list
- Water the plants
- String rp or pr
- Knight in Geekland
- Shy Geek
- Distinct Difference
- Shortest XY distance in Grid
- BST Maximum Difference
- New Year Resolution
- Count Subarrays with given XOR
- Count all triplets with given sum in sorted array
- Reverse a linked list
- Pairwise swap elements of a linked list
- Reverse a Doubly Linked List
- Bubble Sort
- Insertion Sort
- Height of Binary Tree
- Balanced Tree Check
- Check If Circular Linked List
- Decimal Equivalent of Binary Linked List
- Intersection Sorted Linked Lists
- Find Transition Point
- Identical Trees
- Largest subarray of 0's and 1's
- Remove Duplicates Sorted Array
- Remove Duplicates from an array
- Third largest element
- Find Maximum value
- Minimum distance in an Array
- Array Duplicates
- Insert in a Sorted List
- More than n/k Occurrences
- Reverse Using Stack
- Symmetric Tree
- Delete Alternate Nodes
- Find Sum Pairs Across Two BSTs
- The New Line
- Taking input
- Learn to Comment
- For Loop- primeCheck
- Predict the Column
- Xoring and Clearing
- Max and Second Max
- First Set Bit
- Check K-th Bit
- Power of 2
- Frequencies in a Limited Array
- Equilibrium Point
- Sum of upper and lower triangles
- Print Matrix in snake Pattern
- Matrix Boundary Traversal
- Anagram
- Winner of an election
- Isomorphic Strings
- Reverse Words
- Panagram Checking
- Count number of hops
- Product array puzzle
- Roman Number to Integer
- Adding One
- Find Index
- Count the elements
- Move All Zeroes to End
- Rotate Bits
- Number of occurrence
- Sum Pair closest to target
- String's Count
- Find the closest pair from two arrays
- Java Arrays | Set 1
- Palindrome String
- Pair with given sum in a sorted array
- Easy string
- Minimum Operations
- Max Sum Subarray of size K
- Nth Fibonacci Number
- Sum Of Digits
- Shortest path from 1 to n
- Sum 1 to n Divisors
- Reach the Nth point
- Break a number
- Perfect Numbers
- Largest number possible
- Form a number divisible by 3 using array digits
- Dr. Zora's Algorithm
- Inorder Traversal and BST
- Letters Collection
- Sum of dependencies in a graph
- Count the Substrings
- Smallest window containing 0, 1 and 2
- Pattern 2
- Pattern 3
- Pattern 4
- Pattern 14
- Pattern 15
- Pattern 16
- Pattern 17
- Pattern 21
- Print N to 1 without loop
- Print GFG n times
- Pattern 22
- Search in Linked List
- Array to Linked List
- Frogs and Jumps
- Make Array Elements Equal
- Taxi Booking
- Number of Subarrays of 0's
- Minimum Distance
- Count Indices
- Array Game
- It's Payday
- Chocolate Distribution
- Prefix Distinct
- Count Pairs whose sum is less than target
- Print Linked List
- Find Length of Linked List
- Replace all 0's with 5
- Linked List Insertion At End
- Modular Node
- Alternates in an Array
- Reverse a String
- Keypad typing
- First n Fibonacci
- C++ Hello World
- Palindrome Array
- Sum of Array
- Value equal to index value
- Java Hello World
- Nth Even Fibonacci Number
- Fibonacci to N
- Pattern 1
- Pattern 5
- Pattern 6
- Pattern 11
- Pattern 13
- Valid Strings