Exercise 1: Pascal’s Triangle

pascal.sc

object pascal {

  def pascal(c: Int, r: Int): Int = {
    def loop(c: Int, r: Int): Int = {
      if (c == r || c == 0) 1
      else loop(c, r - 1) + loop(c - 1, r - 1)
    }
    loop(c, r)
  }

  def pascalTriangle() {
    println("Pascal's Triangle")
    for (row <- 0 to 10) {
      for (col <- 0 to row)
        print(pascal(col, row) + " ")
      println()
    }
  }
  pascalTriangle()












}