/project-euler-sum-square-difference-online-web-ft-081219

Primary LanguageRuby

Project Euler

Problem: Sum Square Difference

  • 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 square of the sum and the sum of the squares is 3025 − 385 = 2640. Find the difference between the square of the sum of the first one hundred natural numbers and the sum of the squares.

Instructions

  • Code your procedural solution into the lib/sum_square_difference.rb file.
  • Code your object-oriented solution into the lib/oo_sum_square_difference.rb file.
  • Run learn until you get all of the RSpec tests to pass.

Source

View Project Euler on Learn.co and start learning to code for free.

View Sum Square Difference on Learn.co and start learning to code for free.