JavierPerezLavadie

// O(1)
// constant
bool isFirstElementNull(List<String> elements) {
  return elements.first == null;
}

// O(n)
// growth is linear in direct proportion to the size of the data set
bool containsValue(List<String> elements, String value) {
  for (String element in elements) {

mubasshir

void main() {
  List arr = [];
  for (int i = 0; i < 100; i++) {
    arr.add(i.toString());
  }

  int page = 1;
  var startIndex = -1, endIndex = -1;
  while (arr.length > 0 && endIndex != (arr.length - 1)) {
    startIndex = (page - 1) * 10;