Skip to content

# johnf24/data-structures-and-algorithms

A collection of solutions to various Data Structure and Algorithm problems written in Python. Fetching latest commit…
Cannot retrieve the latest commit at this time.
Type Name Latest commit message Commit time
Failed to load latest commit information. .gitattributes .gitignore README.md binary-search.py bubble-sort.py deque.py factorial.py fibonacci-sequence.py iteration.py odd-even.py ordereded-list.py palindrome.py positive-negative.py prime-numbers.py queue.py recursion.py sequential-search.py stack.py unordered-list.py

## Data Structures and Algorithms Project

Collection of my solutions to various Data Structure and Algorithm problems. Each file is a particular data structure or algorithm written in Python with comment explanations describing the processes taken.

This was done in part with a Data Structures and Algorithm course for the Udacity Full Stack Web Developer Nanodegree co-created by Amazon Web Services, GitHub, AT&T and Google.

Python 2.7.13

### Installation Instructions

1. Download Python
2. Clone Data Structures Project repository
3. In terminal run the file with command python file-name.py

### List of Data Structures and Algorithms

• Stack - An ordered collection of items where the addition of new items and the removal of exsisting items always takes place at the same end, (i.e. last in first out).
• Queue - An ordered collection of items where the addition of new items happens at the rear and the removal of exsisting items happens at the front, (i.e. first in first out).
• Deque - A double-ended queue where the addition or removal of items happens at the front or the rear.
• Recursion - A method of solving problems that involves breaking a problem down into smaller subproblems until it can be solved trivially. This algorithm calculates the sum of a list of numbers.
• Unordered List - A collection of items (nodes) where each item holds a relative position with respect to the others. The complexity is linear or O(n) in the worst case.
• Ordered List - A collection of items (nodes) where each item holds a relative position with respect to the others. The complexity is linear or O(n) in the worst case.
• Sequential Search - Searches a list where the items are in sequntial order. The complexity is liner or O(n) in the worst case and constant or O(1) in the best case.
• Binary Search - Serches a list where the items are in sequntial order but starts at the middle item. The complexity is logarithmic or O(log n).
• Bubble Sort - Makes multiple passes through a list and compares adjacent items and exchanges those that are out of order. The complexity is quadratic or O(n2).
• Iteration - A process of repition thats yields results successively closer to a desired result. This algorithm calculates the sum of a list of numbers.
• Odd Even Numbers - A program that checks if a number is odd or even.
• Positive Negitave Numbers - A program that checks if a number is positive or negative.
• Palindrome - An algorithm where a string of characters is inputed is checked whether it is a Palindrome or a word that reads the same forward or backwards.
• Prime Numbers - A program that displays all the prime numbers within an interval.
• Factorial - A program to find the factorial of a number.
• Fibonacci Sequence - A program that displays the Fibonacci sequence up to nth term.
You can’t perform that action at this time.