My solutions for https://projecteuler.net/problems

• Friend key: 62329527622542_8f7a89d18ce714c27a29b4787041adcf
• Progress tracker: https://projecteuler.net/progress=CraigJPerry

Written in Python so that i can practice with different styles & technologies:

• Functional programming style (as opposed to object oriented)
• Cython for C native code extensions
• TODO: PyOpenCL for vectorised code on GPGPU / CPU vector instructions

I've created a small framework to simplify my workflow, which includes building native extensions (automated).

To install:

[user@host project_euler]$ mkvirtualenv -a $PWD -r requirements.txt project_euler
(project_euler)[user@host project_euler]$ pip install --editable .

To run an individual solution:

(project_euler)[user@host project_euler]$ euler p10  # Python implementation
Problem p10: 142913828922 (1065.559 secs)
(project_euler)[user@host project_euler]$ euler c10  # Cython implementation
Problem c10: 142913828922 (0.261 secs)

To run all tests:

(project_euler)[user@host project_euler]$ python -m unittest discover

To run only tests for problem 7:

(project_euler)[user@host project_euler]$ python -m unittest euler.problems.p7  # Python impl
(project_euler)[user@host project_euler]$ python -m unittest euler.problems.c7  # Cython impl
OR
(project_euler)[user@host project_euler]$ python euler/problems/p7.py

To recompile native-code extension modules after editing:

(project_euler)[user@host project_euler]$ python setup.py build_ext --inplace