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BASIC (46)
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MEDIUM (85)
HARD (12)
- Geeks and the test
- Geek and the base
- Transmutation
- Reverse a linked list
- Frequency in a Linked List
- Node at a given index in linked list
- Delete nodes having greater value on right
- Inorder Traversal
- Bubble Sort
- Selection Sort
- Insertion Sort
- Check for BST
- Right View of Binary Tree
- K distance from root
- Mirror Tree
- Two Mirror Trees
- Maximum Width of Tree
- Delete without head pointer
- Height of Binary Tree
- Balanced Tree Check
- Middle of a Linked List
- Left View of Binary Tree
- Transform to Sum Tree
- Find Transition Point
- Remove Duplicates from a Sorted Linked List
- Level Order in spiral form
- Reverse Level Order Traversal
- DFS of Graph
- Insert a node in a BST
- BFS of graph
- Identical Trees
- Nodes without a Sibling
- Lowest Common Ancestor in a BST
- Binary Search
- Run Length Encoding
- Largest subarray of 0's and 1's
- Remove Duplicates Sorted Array
- Level Order Line by Line
- Odd even level difference
- Josephus problem
- Expression Tree
- Longest Consecutive Subsequence
- Delete in a Singly Linked List
- Special Stack
- Three way partitioning
- Level order traversal
- Intersection of Two Linked Lists
- Sum of leaf nodes in BST
- Counting Sort
- XOR of a given range
- Symmetric Tree
- Delete Alternate Nodes
- Sum of Leaf Nodes
- Start Coding - Java
- The New Line - Java
- Sum of Big Integers
- Get min at pop
- Repetitive Printing - Python
- Operators in Python
- Split the input - Python
- Comment in Python
- sep and end in Print()
- First Set Bit
- Rightmost different bit
- Check K-th Bit
- Power of 2
- Wave Array
- Array Leaders
- Anagram
- Reverse Words
- Non Repeating Character
- Parenthesis Checker
- Count ways to N'th Stair
- Count number of hops
- First Repeating Element
- Missing in Array
- Intersection of Arrays with Distinct
- Missing And Repeating
- Sort by Set Bit Count
- Maximum no of 1's row
- Equal Sum and Product
- Remove Duplicates
- Does array represent Heap
- Modify the Array
- Convert an array to reduced form
- First Repeated Character
- Counts Zeros Xor Pairs
- Segregate 0s and 1s
- Three Great Candidates
- Count the Zeros
- Palindrome String
- Is Binary Number Multiple of 3
- Minimum Operations
- Number of 1 Bits
- Nth Fibonacci Number
- Maximum Sum Problem
- Maximize Toys
- Largest number possible
- Page Faults in LRU
- Squares in N*N Chessboard
- Series GP
- Arithmetic Number
- Count all possible paths from top left to bottom right
- Rotate Array
- Geek and the equation
- Unit Digit
- Print Linked List
- Count Linked List Nodes
- Size of Binary Tree
- Count Leaves in Binary Tree
- Postorder Traversal
- Replace all 0's with 5
- Count zeros in a sorted matrix
- Preorder Traversal
- Sum Except First and Last
- Linked List Insertion At End
- Minimum element in BST
- Anagram of String
- Is Linked List Length Even?
- Identical Linked Lists
- Sum of Binary Tree
- Stack designer
- Start Coding - Python
- Space Seperated - Python
- Concatenating Strings - Python
- Taking input - Python
- Comparison Operators - Python
- Bit Difference
- Binary Array Sorting
- Doubling the value
- Anagram Palindrome
- Sort The Array
- Check for subsequence
- Segregate Even and Odd numbers
- Immediate Smaller Element
- Uncommon characters
- Upper Case Conversion
- URLify a given string
- Rotating an Array
- Remove Duplicates from unsorted array
- Min and Max in Array
- Extract Maximum
- Set kth bit
- Smallest power of 2 greater than or equal to n
- Find the fine
- House Robber
- Closest Number
- Series AP
- Print the Kth Digit
- Nearly Sorted Algorithm
- Geek and the lockers
- K<sup>th</sup> Maximum element of Max-Heap
- Rotate a Linked List
- Detect Loop in linked list
- Count BST nodes that lie in a given range
- Merge Sort
- Quick Sort
- Bottom View of Binary Tree
- 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
- Sum Tree
- LCA in Binary Tree
- Maximum difference between node and its ancestor
- Largest subarray with 0 sum
- Kth element in Matrix
- Is Binary Tree Heap
- Remove loop in Linked List
- Minimum Swaps to Sort
- Palindrome Linked List
- Closest in BST
- Merge two BST 's
- Merge k Sorted Arrays
- Sort a stack
- Top View of Binary Tree
- k-th Smallest in BST
- Merge Sort for Linked List
- Union of Two Linked Lists
- Root to Leaf Paths
- Predecessor and Successor
- Convert Level Order Traversal to BST
- Count set bits
- Smallest Positive Missing
- Rearrange Array Alternately
- Stock buy and sell
- Kadane's Algorithm
- Majority Element
- Unique BST's
- Indexes of Subarray Sum
- Sort Elements by Decreasing Frequency
- Longest Consecutive Subsequence
- Next Greater Element
- K Sized Subarray Maximum
- Kth smallest element
- Minimum number of jumps
- 0 - 1 Knapsack Problem
- Number of Unique Paths
- Equal Sum Partition
- Nth Catalan Number
- Rotten Oranges
- Maximize The Cut Segments
- Word Break
- 4 Sum - All Quadruples
- Sort 0s, 1s and 2s
- Paths to reach origin
- Single Among Doubles in a Sorted
- Consecutive 1's not allowed
- Single Among Doubles
- Pythagorean Triplet
- Sum of bit differences
- Nuts and Bolts Problem
- Rotate a Matrix
- k largest elements
- Longest Common Substring
- Longest substring with distinct characters
- Number of pairs
- Missing element of AP
- Longest Palindromic Subsequence
- Find k-th character in string
- Roll the characters of a String
- Unique Number II
- Modular Exponentiation
- Maximum Tip Calculator
- Max Sum Increasing Subsequence
- Coin Change (Count Ways)
- Coin Change (Minimum Coins)
- Power Set
- Count ways to N'th Stair(Order does not matter)
- Maximum path sum in matrix
- Longest Bitonic subsequence
- Count the number of ways to tile the floor of size n x m using 1 x m size tiles
- Segregate even and odd nodes in a Linked List
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