getInv method

List<int> getInv(
  1. List<int> order
)

gets the inverted order for the given order.

Implementation

List<int> getInv(List<int> order) {
  final orderInv = List<int>.filled(order.length, 0);
  for (var i = 0; i < order.length; i++) {
    orderInv[order[i]] = i;
  }
  return orderInv;
}