Learn how to implement popular data structures and algorithms in our next Python project with hands-on examples.

Python for Programmers

Data structures and algorithms are among the most fundamental concepts of computer science. This module is a detailed review of some of the most common data structures and algorithms, such as stack, linked lists, doubly linked lists, binary trees, binary search trees, and so on. With implementation details, thorough explanations, and hands-on coding exercises, we’ll gain the confidence to solve any problem related to our project.

Data Structures and Algorithms in Python

The `peek` operation of stack removes and returns the top of the stack. 

The <code>peek</code> operation of stack removes and returns the top of the stack.

Stacks follow the First-In, First-Out property. 

New elements are inserted at the bottom of the stack.  

Stacks follow the First-In, Last-Out property. 

Stack is always implemented using linked lists. 

Which of the following is true about stacks? 

Which of the following is true about stacks?

Removing the top element from the stack requires moving out all the elements in the stack. 

Removing the top element from the stack requires moving out all the elements in the stack.

 What is the output of the following code? 
 ```python
myStack = Stack()
myStack.push("A")
myStack.push("B")
myStack.pop()
myStack.push("C")
myStack.push("D")
myStack.pop()
myStack.pop()
print(myStack.peek())
 ```

What is the output of the following code?
<pre><code class="language-python">myStack = Stack()
myStack.push(&quot;A&quot;)
myStack.push(&quot;B&quot;)
myStack.pop()
myStack.push(&quot;C&quot;)
myStack.push(&quot;D&quot;)
myStack.pop()
myStack.pop()
print(myStack.peek())
</code></pre>

```python
push()
pop()
isEmpty()
peek()
```

```python
push()
pop()
isEmpty()
peek()
get_stack()
```

What are the basic operations of a stack?


What are the basic operations of a stack?

It's quiz time! Test yourself by solving these questions about stacks.

Built-in Data Structures

Stack

Singly Linked Lists

Circular Linked Lists

Doubly Linked Lists

Arrays

Binary Trees

Binary Search Trees

Binary Search

Recursion

String Processing

Conclusion

Quiz