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