rcoppy

# A super-simple way to implement unit tests for a python program.

# example: tell me, true or false, if a number is odd. 

# procedure: 
# -- come up with test cases.
# -- write and rewrite code until all of your test cases pass. 
# -- if you have time, refactor the end result to make it more readable.

rcoppy

import java.util.Arrays;

public class MergeSort {
 
  private static void mergeSort(Integer[] inputArray) {
      
      // CONTEXT
      // This took about twelve hours of tweaking and line-by-line debugging. It's arguably spaghetti code.
      // That is to say, I don't fully understand why it works!
      // The first bit, splitting the list into intervals, is not so complicated.