$ rails g model User
belongs_to
has_one
package recfun | |
import scala.collection.mutable.ListBuffer | |
import common._ | |
/** https://class.coursera.org/progfun-2012-001/assignment/view?assignment_id=4 */ | |
object Main { | |
def main(args: Array[String]) { | |
println("Pascal's Triangle") | |
for (row <- 0 to 10) { |
You are given an integer N. Find the digits in this number that exactly divide N and display their count. For N = 24, there are 2 digits - 2 & 4. Both these digits exactly divide 24. So our answer is 2.
If the same number is repeated twice at different positions, it should be counted twice, e.g., For N=122, 2 divides 122 exactly and occurs at ones' and tens' position. So it should be counted twice. So for this case, our answer is 3. Division by is undefined.
The Utopian tree goes through 2 cycles of growth every year. The first growth cycle occurs during the spring, when it doubles in height. The second growth cycle occurs during the summer, when its height increases by 1 meter.
Now, a new Utopian tree sapling is planted at the onset of the spring. Its height is 1 meter. Can you find the height of the tree after N growth cycles?
gem 'rails_12factor'
to your Gemfile. This will add error logging and the ability for your app to serve static assets.bundle
RAILS_ENV=production rake db:create db:migrate db:seed
rake secret
and copy the outputexport SECRET_KEY_BASE=output-of-rake-secret
rake assets:precompile
. This will create a folder public/assets
that contains all of your assets.RAILS_ENV=production rails s
and you should see your app.Remember to clobber your assets (rake assets:clobber
) and re-precompile (rake assets:precompile
) if you make changes.