rbmrclo

# in rails application.rb
 
initializer "postgresql.no_default_string_limit" do
  ActiveSupport.on_load(:active_record) do
    ActiveRecord::ConnectionAdapters::PostgreSQLAdapter::NATIVE_DATABASE_TYPES[:string].delete(:limit)
  end
end

rbmrclo

# I'm not using this anymore
#
# Assuming that you are already on your project directory.

# Step 1: rvm gemset create [name of gemset]
# Step 2: rvm --rvmrc [ruby version here]@[name of gemset] # Note: You can check your current ruby version by running "ruby -v" from your console.
# Step 3: Refresh your directory, you can do this by simply checking out of your directory via command: cd.. and going back to that directory again.
# Step 4: RVM will ask you a simple Yes, No, View, Cancel question. Press Y for yes.
# Step 5: You're done! Run bundle install.

rbmrclo

/* 

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.

*/

// Solution in PHP, the simple way: