Exodia7 / projecteuler

This repository will contain my solutions to the problems from the Project Euler webpage (https://projecteuler.net/archives)

Solutions to Project Euler challenges

This repository will contain my solutions to the problems from the Project Euler webpage (https://projecteuler.net/archives).

I have written solutions in different languages and will group my solutions by language. This is more convenient as I have helper scripts which take user input to know which problem to execute.

Python

Execution

The Python answers can be run by executing the main.py file, such as with the command python python/main.py. The user will then be asked which problem from a list of solved problems they would like to launch and launch the one they selected.

Code

The actual solutions to the problems can be found in the answers folder, in the files named ProblemXXX.py (where XXX is replaced by the problem number).

How to add a new solution?

First of all, create a new Python file called ProblemXXX.py (with XXX replaced by the problem number). That class should containg a solve() method which prints the answer to the problem and the time that the computation took. Then, a new import needs to be added in the file __init__.py for the solve method. Lastly, a new entry needs to be added in the list completedProblems in the main.py file, similary to the others.

Java

Compilation & Execution

The Java answers can be compiled by using the command javac *.java -d . from the java directory. The code can then be executed by running the Main.class file which should be located at java/projecteuler/Main. From the [java] directory, this is done using the command java projecteuler/Main. The user will then be asked which problem from a list of solved problems they would like to launch and launch the one they selected.

Code

The actual solutions to the problems can be found in the java folder itself, in files named ProblemXXX.java (where XXX is replaced by the problem number).

How to add a new solution?

First of all, create a new Java class called ProblemXXX.java (with XXX replaced by the problem number). That class should extend the abstract class Problem, in particular it should call the super-class constructor and define the solveProblem() method. Once that is done, a new entry needs to be added in the array problems of the ProblemFactory in ProblemFactory.java.