Longest consecutive sum of primes

This is solution for Project Euler 50 in ruby

Getting Started

These instructions will help you to run this solution.

Prerequisites

You will need rvm to install ruby or if you already have it, skip the first line

Installing

rvm install 2.4.2
gem install bundle
bundle

Running task

You should check that file find_longest_sum.rb is executive

chmod +x find_longest_sum.rb

After that you can run task with command

./find_longest_sum.rb

You can pass limit for primes as parameter. Default value is 100

./find_longest_sum.rb 1_000_000

So output will look like

Max number of primes is 543
Sum is 997651
Performed in 1068 ms

If you don't want to make file executive you can do

ruby find_longest_sum.rb 1_000_000

Running the tests

For tests we'll use rspec gem

rspec