• + 3 comments

    My strange scala solution.

    object Solution {
      def main(args: Array[String]) {
        val n = io.StdIn.readInt()
        (1 to n).foreach { i =>
          val k = io.StdIn.readInt()
          val list = (1 to k).map(x => io.StdIn.readLine.split("\\s+")(0)).toList
          if (list.distinct.size == list.size) println("YES")
          else println("NO")
        }
      }
    }