Same Solution in Scala

def arrayManipulation(n: Int, queries: Array[Array[Int]]): Long = {

val arr = Array.ofDim[Long](n + 1)

for (q <- queries) {
  arr(q(0)) = arr(q(0)) + q(2)
  if (q((1)) + 1 != arr.size)
    arr(q(1) + 1) = arr(q(1) + 1) - q(2)

}


for (i <- 1 to arr.length - 1) {
  arr(i) = arr(i) + arr(i - 1)
}
arr.max

}