Orlando Coding Dojo -- 8/27/2011

Planning.markdown

Euler Problem #1

If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23.

Find the sum of all the multiples of 3 or 5 below 1000.

Planning

expected input: 10, 1000 expected output: 23, ???

examples: 10: 3, 5, 6, 9 = 23 15: 3, 5, 6, 9, 10, 12 = 45 20: . . . 15, 18 = 78

function multiples_of_three_or_five ( limit ): array

function summation ( list ): integer

class Solution function solve_for ( value ): integer // solution

Retrospective.markdown

What we did well...

• Good problem, finished it!
• Good Language: Coffee Script > Javascript
• Liked the refactoring phase at the end
• Planning helped and was thorough enough
• Wrote tests first
• Learned something new

What we want to improve...

• Announce the language decision earlier
• Space was too hot and too loud
• Refactor earlier instead of all at the end
• Back up to a known good point instead
• Identify bad refactoring
• Plan the refactoring