Searching, Sorting, and Hashing Algorithms Full Course | Data Structures and Algorithms | Scaler

Описание: Searching algorithms are designed to retrieve an element from any data structure where it is used. However, a sorting algorithm is used to arrange the data of list or array into some specific order.
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🔹What is Searching Algorithm in Data Structure and Algorithms:
Searching algorithms are used to check for an element and retrieve it from the Data Structure. Based on the type of operation, they are generally classified into Sequential search and Interval search.

🔹 Introduction to Sorting Algorithms:

A Sorting Algorithm is used to rearrange a given array or list elements according to a comparison operator on the elements. The comparison operator is used to decide the new order of elements in the respective data structure.

🔹 Why are sorting algorithms important? Why are they consistently asked during coding interviews?

Since sorting algorithms simplify the complexity of a problem in data structures, knowing about sorting algorithms and its applications are given importance at interviews. These algorithms have direct applications in searching algorithms, database algorithms, divide and conquer methods, data structure algorithms, and many more.


What is the difference between searching and sorting algorithms?

A searching algorithms are designed to retrieve an element from any data structure where it is used. These algorithms are generally classified into two categories i.e. sequential search and interval search. Whereas, A sorting algorithm is used to arranging the data of list or array into some specific order. It can be numerical or lexicographically order. There are two different categories in sorting. These are Internal and External Sorting.

Hashing is a search method using the data as a key to map to the location within memory, and is used for rapid storage and retrieval. Sorting is a process of organising data from a random permutation into an ordered arrangement, and is a common activity performed frequently in a variety of applications.

The following topics are covered in this “Searching & sorting hashing algorithms” video:

0:00 - Introduction
23:41 - Let’s code
48:02 - Sorting algorithms
01:46:41 - Quick sort
02:30:11 - Binary search
03:43:48 - Binary search interview questions
05:07:45 - Advance problems on Binary search
06:20:07 - Hashing
07:10:30 - Hashing interview questions

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