WEBVTT

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Data structure is a format in which data is stored and organized.

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In other words data structure is a collection of data.

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In that time we have for building data structures.

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List tuple dictionary and set first.

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We'll see list.

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The list is a general data structure widely used in pet and programs.

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It orders and ordered collection of items.

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It means that we can store sequence of items in a list to create a list.

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We give name to the list and the items in the list are enclosed by square brackets so here we are creating

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a list.

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You see it which is the name of the list and the items on the list are enclosed in square brackets.

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This list of items 1 2 3 4 5

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if you want to add a value to the list.

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We use append

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this will always add the new item to the end of the list.

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Like this to remove the item from the list we have.

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Let's suppose if we want to remove for you just before

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if you wanted to know how many items are there in the list we use land function

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if you wanted to count the number of occurrence of some item in the list.

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We will skunk

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so one is one time in the list

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to sort the list we see a dots or

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to sort the list in the worst say we saw

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rewards equal to

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we can assign a value of a list to another list.

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Now we have to list

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but remember that when we use equal to sign this will assign a reference of List A to B.

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It means if I append a

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B will also get appended

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to create a copy of the list.

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We can do new list with list big

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now if we append new list a new wonder school list dot and

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it will not affect a

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we can remove all items from the list by saying made it clear

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these were some list functions now we'll do some indexing on the list.

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So let's create the list again.

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So in certain the index indexes starts with 0 4 in the list it will have index value 0 2 will have 1

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3 ruler 2 and so on 2.

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Let's say grinned is

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in the list is

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give the index of the

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we can also specify the negative index so that negative index will start retrieving value from end of

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the list.

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Let's say

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charter schools

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apart from indexing again also do slicing on the list.

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Let's suppose we wanted to retrieve those three numbers from the list you say print

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the numbers.

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PA

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if you wanted to print the oldest we say

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if we wanted to retrieve like say print the list from there can I go yet.

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To do this we just simply scale 1

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since we can add remove or search the item in the list.

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We can say the list is a mutable data type that is this can be ordered we now see how to use list in

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our programs.

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They write a new program

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and we say for by you specify some lists but

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then I

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say that

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is

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right.

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This will print 1 2 3 4 5 you can also write the same program like the

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2.

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This is how we use list 1 in our programs.