Podcast
Questions and Answers
Which of the following is an example of a mutable data structure?
Which of the following is an example of a mutable data structure?
- Strings
- Number types
- Tuples
- Lists (correct)
What is the main characteristic of a stack data structure?
What is the main characteristic of a stack data structure?
- It is a first in, first out (FIFO) stack
- It has two operations defined: push and pop
- It is a push-down stack (correct)
- It supports direct support in Python 3
Why is a stack called a stack?
Why is a stack called a stack?
- Because it is a mutable data structure
- Because it is a physical stack of items (correct)
- Because it is a push-down stack
- Because it is a last in, first out (LIFO) stack
Which of the following operations appends an element at the top of a stack?
Which of the following operations appends an element at the top of a stack?
What types of data structures have we exclusively worked with thus far in the course?
What types of data structures have we exclusively worked with thus far in the course?
Flashcards
Mutable Data Structure Example
Mutable Data Structure Example
A data structure whose elements can be changed after it is created.
Stack Data Structure
Stack Data Structure
A data structure where the last element added is the first one removed (LIFO).
Stack Naming
Stack Naming
The data structure is called a stack because it resembles a real-world stack of items.
Stack Operation: Push
Stack Operation: Push
The operation that adds an element to the top of a stack.
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Data Structures in the Course
Data Structures in the Course
Number types, strings, tuples, lists, and dictionaries.
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Data Structures
- A mutable data structure is an array or list.
Stack Data Structure
- The main characteristic of a stack data structure is that it follows the Last In, First Out (LIFO) principle.
- A stack is called a stack because it resembles a physical stack, where elements are added and removed from the top.
Stack Operations
- The push operation appends an element at the top of a stack.
Course Overview
- We have exclusively worked with mutable data structures, such as arrays and lists, thus far in the course.
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