Classic algorithms including Fizz Buzz, Bubble Sort, the Fibonacci Sequence, a Sudoku solver, and more.

Overview

Algorithms

Classic algorithms including Fizz Buzz, Bubble Sort, the Fibonacci Sequence, a Sudoku solver, and more.

Showcase

Algorithm Complexity

Time and Space Complexity (Big O Notation)

All algorithms have a complexity known as Big O Notation, the more complex an algorithm, the less efficient it gets as more data is introduced. Listed below are the Big-O complexities listed from best to worst:

  • O(1)
  • O(log n)
  • O(n)
  • O(n * log n)
  • O(n^2)
  • O(2^n)
  • O(n!)

Showcase

Available Algorithms

Recursion

Invert Binary Tree - O(n)

Showcase

Sudoku Solver - O(n)

Original:
[3, 0, 6, 5, 0, 8, 4, 0, 0]
[5, 2, 0, 0, 0, 0, 0, 0, 0]
[0, 8, 7, 0, 0, 0, 0, 3, 1]
[0, 0, 3, 0, 1, 0, 0, 8, 0]
[9, 0, 0, 8, 6, 3, 0, 0, 5]
[0, 5, 0, 0, 9, 0, 6, 0, 0]
[1, 3, 0, 0, 0, 0, 2, 5, 0]
[0, 0, 0, 0, 0, 0, 0, 7, 4]
[0, 0, 5, 2, 0, 6, 3, 0, 0]


Solved:
[3, 1, 6, 5, 7, 8, 4, 9, 2]
[5, 2, 9, 1, 3, 4, 7, 6, 8]
[4, 8, 7, 6, 2, 9, 5, 3, 1]
[2, 6, 3, 4, 1, 5, 9, 8, 7]
[9, 7, 4, 8, 6, 3, 1, 2, 5]
[8, 5, 1, 7, 9, 2, 6, 4, 3]
[1, 3, 8, 9, 4, 7, 2, 5, 6]
[6, 9, 2, 3, 5, 1, 8, 7, 4]
[7, 4, 5, 2, 8, 6, 3, 1, 9]
Numbers put into the Sudoku puzzle: 769
Numbers that had to be backtracked due to a dead-end: 720

Sequences

Fibonnaci Sequence - O(2^n)

The Fibonacci Sequence to 20 iterations:
[0, 1, 1, 2, 3, 5, 8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181]

Fizz Buzz - O(n)

Fizz Buzz to 15 iterations:
1
2
Fizz
4
Buzz
Fizz
7
8
Fizz
Buzz
11
Fizz
13
14
FizzBuzz

Sorting

Bubble Sort - O(1)

Original: [3, 1, 5, 9, 7, 6, 2, 8, 4]
[1, 3, 5, 9, 7, 6, 2, 8, 4] => Swapped 3 and 1
[1, 3, 5, 7, 9, 6, 2, 8, 4] => Swapped 9 and 7
[1, 3, 5, 7, 6, 9, 2, 8, 4] => Swapped 9 and 6
[1, 3, 5, 7, 6, 2, 9, 8, 4] => Swapped 9 and 2
[1, 3, 5, 7, 6, 2, 8, 9, 4] => Swapped 9 and 8
[1, 3, 5, 7, 6, 2, 8, 4, 9] => Swapped 9 and 4
[1, 3, 5, 6, 7, 2, 8, 4, 9] => Swapped 7 and 6
[1, 3, 5, 6, 2, 7, 8, 4, 9] => Swapped 7 and 2
[1, 3, 5, 6, 2, 7, 4, 8, 9] => Swapped 8 and 4
[1, 3, 5, 2, 6, 7, 4, 8, 9] => Swapped 6 and 2
[1, 3, 5, 2, 6, 4, 7, 8, 9] => Swapped 7 and 4
[1, 3, 2, 5, 6, 4, 7, 8, 9] => Swapped 5 and 2
[1, 3, 2, 5, 4, 6, 7, 8, 9] => Swapped 6 and 4
[1, 2, 3, 5, 4, 6, 7, 8, 9] => Swapped 3 and 2
[1, 2, 3, 4, 5, 6, 7, 8, 9] => Swapped 5 and 4
List sorted successfully in 0:00:00.000080 with Bubble Sort Algorithm!

Install

make install

Usage

See each script for additional descriptions, usage, features, and lessons learned.

venv/bin/python algorithms/category/script.py

Development

# Get a comprehensive list of development tools
make help
Algorithm for Cutting Stock Problem using Google OR-Tools. Link to the tool:

Cutting Stock Problem Cutting Stock Problem (CSP) deals with planning the cutting of items (rods / sheets) from given stock items (which are usually o

Emad Ehsan 87 Dec 31, 2022
A fast, pure python implementation of the MuyGPs Gaussian process realization and training algorithm.

Fast implementation of the MuyGPs Gaussian process hyperparameter estimation algorithm MuyGPs is a GP estimation method that affords fast hyperparamet

Lawrence Livermore National Laboratory 13 Dec 02, 2022
N Queen Problem using Genetic Algorithm

The N Queen is the problem of placing N chess queens on an N×N chessboard so that no two queens attack each other.

Mahdi Hassanzadeh 2 Nov 11, 2022
8-puzzle-solver with UCS, ILS, IDA* algorithm

Eight Puzzle 8-puzzle-solver with UCS, ILS, IDA* algorithm pre-usage requirements python3 python3-pip virtualenv prepare enviroment virtualenv -p pyth

Mohsen Arzani 4 Sep 22, 2021
Parameterising Simulated Annealing for the Travelling Salesman Problem

Parameterising Simulated Annealing for the Travelling Salesman Problem Abstract The Travelling Salesman Problem is a well known NP-Hard problem. Given

Gary Sun 55 Jun 15, 2022
Algorithmic Trading with Python

Source code for Algorithmic Trading with Python (2020) by Chris Conlan

Chris Conlan 1.3k Jan 03, 2023
A pure Python implementation of a mixed effects random forest (MERF) algorithm

Mixed Effects Random Forest This repository contains a pure Python implementation of a mixed effects random forest (MERF) algorithm. It can be used, o

Manifold 199 Dec 06, 2022
HashDB is a community-sourced library of hashing algorithms used in malware.

HashDB HashDB is a community-sourced library of hashing algorithms used in malware. How To Use HashDB HashDB can be used as a stand alone hashing libr

OALabs 216 Jan 06, 2023
A litle algorithm that i made for transform a picture in a spreadsheet.

PicsToSheets How it works? It is an algorithm designed to transform an image into a spreadsheet file. this converts image pixels to color cells of she

Guilherme de Oliveira 1 Nov 12, 2021
Xor encryption and decryption algorithm

Folosire: Pentru encriptare: python encrypt.py parola fișier pentru criptare fișier encriptat(de tip binar) Pentru decriptare: python decrypt.p

2 Dec 05, 2021
Pathfinding visualizer in pygame: A*

Pathfinding Visualizer A* What is this A* algorithm ? Simply put, it is an algorithm that aims to find the shortest possible path between two location

0 Feb 26, 2022
Visualisation for sorting algorithms. Version 2.0

Visualisation for sorting algorithms v2. Upped a notch from version 1. This program provides animates simple, common and popular sorting algorithms, t

Ben Woo 7 Nov 08, 2022
Using Bayesian, KNN, Logistic Regression to classify spam and non-spam.

Make Sure the dataset file "spamData.mat" is in the folder spam\src Environment: Python --version = 3.7 Third Party: numpy, matplotlib, math, scipy

0 Dec 26, 2021
causal-learn: Causal Discovery for Python

causal-learn: Causal Discovery for Python Causal-learn is a python package for causal discovery that implements both classical and state-of-the-art ca

589 Dec 29, 2022
Python package to monitor the power consumption of any algorithm

CarbonAI This project aims at creating a python package that allows you to monitor the power consumption of any python function. Documentation The com

Capgemini Invent France 36 Nov 11, 2022
Resilient Adaptive Parallel sImulator for griD (rapid)

Rapid is an open-source software library that implements a novel “parallel-in-time” (Parareal) algorithm and semi-analytical solutions for co-simulation of integrated transmission and distribution sy

Richard Lincoln 7 Sep 07, 2022
Implementation for Evolution of Strategies for Cooperation

Moraliser Implementation for Evolution of Strategies for Cooperation Dependencies You will need a python3 (= 3.8) environment to run the code. Before

1 Dec 21, 2021
zoofs is a Python library for performing feature selection using an variety of nature inspired wrapper algorithms. The algorithms range from swarm-intelligence to physics based to Evolutionary. It's easy to use ,flexible and powerful tool to reduce your feature size.

zoofs is a Python library for performing feature selection using a variety of nature-inspired wrapper algorithms. The algorithms range from swarm-intelligence to physics-based to Evolutionary. It's e

Jaswinder Singh 168 Dec 30, 2022
The DarkRift2 networking framework written in Python 3

DarkRiftPy is Darkrift2 written in Python 3. The implementation is fully compatible with the original version. So you can write a client side on Python that connects to a Darkrift2 server written in

Anton Dobryakov 6 May 23, 2022
:computer: Data Structures and Algorithms in Python

Algorithms in Python Implementations of a few algorithms and datastructures for fun and profit! Completed Karatsuba Multiplication Basic Sorting Rabin

Prakhar Srivastav 2.9k Jan 01, 2023