From: Ari Brown <ari@...>
Date: 2007-06-02T23:44:12+09:00
Subject: [OLD QUIZ] Pascal's Triangle

Hey all,
my second submission to RQ. My first one is GOING TO BE fizzbuzz. Now  
now, now's not the time to battle my inconsistencies...

Here's my code for Pascals Triangle. Can someone help me shorten it up?

# Pascals triangle

def factorial(n)
   sum = 1
   sum.upto(n) { |i| sum *= i }
   sum
end

def nCr(n, r)
   numerator   = factorial(n)
   denominator = factorial(r) * factorial(n - r)

   @combinations = numerator / denominator
end

def pascal max_row

   0.upto(max_row) {|row_num|

     holder = []
     ticker = 0
     while ticker != row_num
       result = nCr(row_num, ticker)
       ticker = ticker + 1
       holder.push(result)
     end
     puts holder.join(' ').center(80)

   }

end

puts 'How many rows do you want?'
max_row = gets.chomp.to_i
pascal max_row


Thanks,
---------------------------------------------------------------|
~Ari
"I don't suffer from insanity. I enjoy every minute of it" --1337est  
man alive