title: What is the smallest number divisible by each of the numbers 1 to 20?
url: http://projecteuler.net/problem=6

desc: |
  The sum of the squares of the first ten natural numbers is,
  1^2 + 2^2 + ... + 10^2 = 385
  The square of the sum of the first ten natural numbers is,
  (1 + 2 + ... + 10)^2 = 55^2 = 3025
  Hence the difference between the sum of the squares of the first ten natural numbers and the square of the sum is 3025  385 = 2640.
  Find the difference between the sum of the squares of the first one hundred natural numbers and the square of the sum.
  
solution: |
  See code

solutions:
  solve.php:
    desc: Basic solution
    language: php
  solve.rb:
    desc: Basic Ruby solution
    language: ruby
  solve.rb:
    desc: ANSI C solution (Tested with TCC)
    language: c