Lecture 4

Question 1

Data structure

Answer 1

Is a specific way of organizing storing and managing data in a computer so that it can be efficiently accessed and modified they help solve complex problems and enable faster algorithms by aligning the data organization with a task at hand

Question 2

List

Answer 2

A list is a built in data structure in python used to store an ordered collection of items. Lists are mutable meaning their contents can be changed after creation items and lists can be different data types.

Question 3

Mutable

Answer 3

Elements can be modified, added or removed after list is created

Question 4

Can if statements be empty

Answer 4

No they must have something to execute it True

Question 5

pass

Answer 5

Pass command keeps the program moving forward but does not execute any commands

Question 6

List

Answer 6

Stores an ordered collection (possibly duplicate) items. They are mutable and can be different data types

Question 7

Mutable

Answer 7

Can be changed after creation

Question 8

Index

Answer 8

The specific location of an element in a list. Starts at 0, is referenced using []

Question 9

Append

Answer 9

Add elements to the end of the list using list.append()

Question 10

Insert element into list at a specific index

Answer 10

List. Insert(idx, )

Question 11

Remove and return last element in a list

Answer 11

List.pop()

Question 13

Remove and return element at specified index

Answer 13

List.pop(idx)

Question 14

Reverse order of list

Answer 14

List.reverse()

Question 15

Sprt in ascending order

Answer 15

list.sort()

Question 16

Find length of list

Answer 16

len(list)

Question 17

Check if element is in a list

Answer 17

Is ‘ ‘ in list

Question 18

Negative indicies in python lists

Answer 18

Count backwards