Heaps And Maps

Problem	Score	Companies	Time
Ways to form Max Heap	200	Directi	75:57
N max pair combinations	200	Liv.ai	78:48
K Largest Elements	200	Amazon Delhivery Flipkart	20:13
Profit Maximisation	200	Buyhatke	20:58
Merge K sorted arrays!	200	trakinvest	28:39
Connect Ropes	200		15:54
Magician and Chocolates	250		42:08
Maximum Sum Combinations	300	Amazon Liv.ai	56:40
Merge K Sorted Lists	600	Flipkart Amazon	43:44

Problem

Score

Companies

Time

Status

Ways to form Max Heap

200

Directi

75:57

N max pair combinations

200

Liv.ai

78:48

K Largest Elements

200

Amazon Delhivery Flipkart

20:13

Profit Maximisation

200

Buyhatke

20:58

Merge K sorted arrays!

200

trakinvest

28:39

Connect Ropes

200

15:54

Magician and Chocolates

250

42:08

Maximum Sum Combinations

300

Amazon Liv.ai

56:40

Merge K Sorted Lists

600

Flipkart Amazon

43:44

Problem	Score	Companies	Time	Status
Distinct Numbers in Window	600	Amazon	39:07
LRU Cache	1000	Adobe Citigroup Amazon	75:42

Problem

Score

Companies

Time

Status

Distinct Numbers in Window

600

Amazon

39:07

LRU Cache

1000

Adobe Citigroup Amazon

75:42

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Level 1

Time Complexity

How to Calculate Running Time?

Asymptotic notations

How to Calculate Time Complexity?

Time Complexity Examples

Relevance of time complexity

Space Complexity

Level 2

Arrays

Introduction to pointers in C/C++

Arrays in programming - fundamentals

Pointers and arrays

Pointers and 2-D arrays

Array Implementation Details

Sorting Algorithms

Insertion sort algorithm

Merge sort algorithm

QuickSort Algorithm

Sort Implementation Details

Selection Sort

Bubble Sort

Math

Math Introduction

Factorization

Base number system

Unary number system

Binary number system

Base conversions for base N

Level 3

Binary Search

Binary Search Implementations and common errors

Binary Search Algorithm

Applications of Binary Search

Beyond Sorted Array Binary Search

Advantages and Disadvantages of Binary Search

Strings

For C / C++ users,

For C / C++ users ( contd ),

String Implementation Details

Bit Manipulation

What is Binary Number System?

Understanding Data Types

Bitwise Operators

Bitwise Operators Examples

Bitwise and Logical Operators

Two Pointers

TWO POINTERS

Level 4

Linked Lists

Introduction to linked list

Arrays vs Linked Lists

Linked List Implementation

Doubly linked list

Doubly Linked List Implementation

Stacks And Queues

Introduction to Stack

Array implementation of Stack

Linked List implementation of stack

Stack Implementation Details

Introduction to Queues

Array implementation of Queues

Linked List implementation of Queue

Queue Implementation Details

Level 5

Backtracking

Recursion basics - using factorial

Complexity analysis of recursive programs

Why recursion is not always good

Time Complexity analysis of recursion

Space complexity analysis of recursion

Maze Traversal Algorithm Using Backtracking

Graph Coloring Algorithm using Backtracking

Hashing

Introduction to hashing

Key terms in Hashing

Hashing Techniques

Hashing Implementation Details

Hashing Summary