# CS106   Python Function Examples


def f1(x):
  return x * 10


def f2(x,y):
   print x + y    


def f3(x,y):
   if x > y:
     print "x is greater than y"
   else:
     if y > x:
       print "y is greater than x"
     else:
       print "x and y are equal"     

    
def f4(x,y):
   while x < y:
     x = x + 4
     y = y - 2
   print "x = ", x
   print "y = ", y   
  
    
def power(x,y):  # returns x to the power y;  y must be >= 0
   total = 1
   while y > 0:
     total = total * x
     y = y - 1
   return total     
 
 
def power2(x,y): # returns x to the power y;  y must be >= 0
   total = 1
   for z in range(1,y+1):
     total = total * x
   return total    


def sumLoop(first,last): # returns the sum of the integers from first to last
   sum = 0
   for x in range(first,last+1):
     sum = sum + x
   return sum


def average(list):
   sum = 0.0
   count = 0
   for x in list:
      sum = sum + x
      count = count + 1
   return sum/count


def largest(list):
   biggestSoFar = list[0]
   for x in list:
      if (x > biggestSoFar):
         biggestSoFar = x
   return biggestSoFar


def nestedLoop(first,last):
   for x in range(first,last+1):
     for y in range(1, x+1):
        print y, " " ,
     print "\n"