Hackerrank - List Length - Pavol Pidanič

Problem Statement
A description of the problem can be found on Hackerrank.

Solution

object ListLength extends App {

  def f(arr: List[Int]): Int = {
    var count = 0
    for (i <- arr) count += 1
    count
  }
  
  println(f(io.Source.stdin.getLines.toList.map(_.trim).map(_.toInt)))
}

object ListLength extends App {

def f(arr: List[Int]): Int = {

var count = 0

for (i <- arr) count += 1

count

}

println(f(io.Source.stdin.getLines.toList.map(_.trim).map(_.toInt)))

}

Solution also available on my GitHub.

Pavol Pidanič

I can count to 1023 with 10 fingers

Hackerrank – List Length