Functional Programming Principles in Scala - Exercise 1: Pascal’s Triangle

PascalTriangle.sc

object Main {
  def main(args: Array[String]) {
    println("Pascal's Triangle")
    for (row <- 0 to 10) {
      for (col <- 0 to row)
        print(pascal(col, row) + " ")
      println()
    }
  }

  /**
    * Exercise 1
    */
  def pascal(c: Int, r: Int): Int =
    if (c == 0 || c == r) 1
    else pascal(c - 1, r - 1) + pascal(c, r - 1)
}

This exercise is copied from the Functional Programming Principles in Scala course, week 1. Find more on my website.