Dagens rekursion

procedure RecursiveBottlesOfBeer. (n: number of bottles)
  If n = 0:
  	Sing: “No bottles of beer on the wall, no bottles of beer,”
  	Sing: “Go to the store, buy some more, n bottles of beer on the wall.”
  Else:
  	Sing: “n bottles of beer on the wall, n bottles of beer,”
  	Sing: “Take one down, pass it around, n − 1 bottles of beer on the wall.”
  	RecursiveBottlesOfBeer (n-1)