Level Up Coding

• Arrays & Dynamic Arrays

  • Add One To Number
  • Multiplication of previous and next
  • Multiple left rotations of the array
  • Primal Power

• Arrays 1

  • Add One To Number
  • Max Non Negative SubArray
  • Rain Water Trapped

• Arrays 2

  • Rotate Matrix

• Basics of Maths

  • Palindrome Integer
  • Excel Column Number

• Basics of Storage

  • Simplify Directory Path

• Binary Search Tree

  • Largest BST Subtree
  • Sorted Array To Balanced BST
  • Valid Binary Search Tree

• Bit Manipulation

  • Different Bits Sum Pairwise
  • Min XOR value
  • Single Number
  • Single Number II
  • Single Number III

• Dynamic Programming II

  • Longest Common Subsequence

• Introduction to Hashing

  • Permutations of A in B

• GRAPHS BASICS

  • GRAPH REPRESENTATION - ADJACENCY MATRIX

• Graphs 2

  • Coloring a Cycle Graph
  • Cycle in Directed Graph

• Graphs

  • Construct Roads
  • Path in Directed Graph

• Hashing 2

  • Count Right Triangles
  • Replicating Substring

• Hashing I

  • Longest Consecutive Sequence
  • Shaggy and distances
  • Sort Array in given Order
  • Sub-array with 0 sum

• InterviewExperiences

  • Smarter.codes interview question

• Intro to Dynamic Programming (1D DP)

  • Fibonacci Number
  • Stairs

• Introduction to Hashing

  • Permutations of A in B

• Introduction to Problem Solving

  • MINIMUM PICKS
  • Pattern Printing - 1
  • Elements which have at-least two greater elements
  • Smaller and Greater

• Introduction to Recursion

  • Check Palindrome
  • Find Fibonacci

• Introduction to Sorting

  • Largest Number
  • Unique Elements
  • Wave Array

• LCA + Problems on Trees

  • Invert the Binary Tree

• Linked List II

  • Copy List

• Linked List

  • K reverse linked list
  • BASICS LINKED LIST OPERATIONS.
  • Remove Nth Node from List End
  • Reorder List

• Maths - Modular Arithmetic

  • A, B and Modulo

• Maths : GCD

  • Greatest Common Divisor
  • Largest Coprime Divisor
  • Pubg
  • Enumerating GCD

• Maths : Prime numbers

  • Number Of Open Doors
  • Odd Fibonacci

• More Problems on Hashing

  • Colorful Number
  • Perfect Cards
  • Change Date Format

• More Problems on Trees

  • Diameter of binary tree
  • Recover Binary Search Tree

• Multidimensional Arrays

  • Search in a row wise and column wise sorted matrix

• Problem Solving 1

  • Beggars Outside Temple
  • Pick from both sides!

• Problem Solving 2

  • Column Sum
  • Count ways to make sum of odd and even indexed elements equal by removing an array element
  • Equilibrium index of an array
  • Minimum Absolute Difference
  • Sliding Window Maximum
  • Subarray with least average
  • Find Determinant

• Problem Solving 3

  • Contiguous Array consisting of only 0 and 1.
  • Sort the Unsorted Array

• Problem Solving 4

  • Majority Element
  • Merge Two Sorted Arrays
  • Minimize the absolute difference
  • Smallest sequence with given Primes
  • Intersection Of Sorted Arrays
  • N/3 Repeat Number
  • Remove Duplicates from Sorted Array

• Problem Solving 6

  • Bulbs problem
  • Square Granites
  • Xor queries
  • Hotel Bookings Possible
  • Subarray OR

• Problem Solving 8

  • Gravity Flip
  • When will the ants die

• Problems on Arrays

  • Special Subsequences "AG"

• Queues

  • First non-repeating character
  • Perfect Numbers
  • Sliding Window Maximum
  • Task Scheduling

• Recursion

  • Generate all Parentheses II
  • SIXLETS
  • Permutations

• Searching I

  • Find a peak element
  • Rotated Sorted Array Search
  • Single Element in a Sorted Array
  • Sorted Insert Position

• Searching II

  • Aggressive cows
  • Smallest Good Base

• Sorting 1

  • Kth Smallest Element
  • Maximum Unsorted Subarray
  • Merge Two Sorted Arrays
  • Wave Array

• Sorting 2

  • Sum the Difference
  • Game of Bottles

• Stacks II

  • Double Character Trouble
  • Evaluate Expression
  • Largest Rectangle in Histogram
  • Nearest Smaller Element

• Stacks

  • Maximum Frequency stack
  • Min Stack
  • Passing game
  • Sort stack using another stack

• String Algorithms

  • Longest Common Prefix
  • Boring substring
  • Reverse the String

• String Manipulation

  • Closest Palindrome
  • Count Occurrences
  • Lexicographically Largest
  • String operations
  • Change character

• Trees 2

  • Balanced Binary Tree
  • Identical Binary Trees
  • Right view of Binary tree
  • TOP VIEW

• Trees

  • Inorder Traversal
  • Level Order
  • Postorder Traversal
  • Preorder Traversal
  • TOP BOTTOM LEFT RIGHT VIEW OF TREE
  • Vertical Order traversal

• Two Pointers

  • 3 Sum
  • Another Count Rectangles
  • Pairs with Given Difference
  • Subarray with given sum

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I'm a python developer.
I specialize in Automation and Data structures.
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