Zizag triples in Dart

main.dart

// Author: Parables Boltnoel

void main() {
  var numbers = [1, 2, 1, 3, 4];
  findZigZagTriples(numbers);
}

//
// This function determines whether three numbers a, b, and c  is a zigzag triples

bool isZigzag(num a, num b, num c) {
  return (a > b && b < c) == true || (a < b && b > c) == true;
}

List<num> findZigZagTriples(List<num> numbers) {
  num a, b, c;
  List<num> result = [];
  for (int i = 0; i < numbers.length - 2; i++) {
    a = numbers[i];
    b = numbers[i + 1];
    c = numbers[i + 2];

    int intValue = isZigzag(a, b, c) ? 1 : 0;
    result.add(intValue);
  }
  print(result);
  return result;
}