task11

import 'dart:io';

void main() {
  print("Task 11: ");
  print("Please enter a number of seconds:");
  int? secs = int.parse(stdin.readLineSync()!);
  print(intToTimeLeft(secs));
}

String intToTimeLeft(int value) {
  int h, m, s;
  String fh, fm, fs;
  h = value ~/ 3600;
  m = ((value - h * 3600)) ~/ 60;
  s = value - (h * 3600) - (m * 60);

  h <= 9 ? fh = "0$h" : fh = "$h";
  m <= 9 ? fm = "0$m" : fm = "$m";
  s <= 9 ? fs = "0$s" : fs = "$s";

  String result = "$fh:$fm:$fs";
  return result;
}