private void ComputeMinutes()
{
GuardMinutes currentGuard = null;
var sleepMin = 0;
foreach (var action in _actions.OrderBy(t => t.Key))
{
var currentAction = action.Value;
if (currentAction[0] == 1)
{
if (!_guardDictionary.TryGetValue(currentAction[1], out currentGuard))
{
currentGuard = new GuardMinutes();
_guardDictionary[currentAction[1]] = currentGuard;
}
}
else if (currentAction[0] == 2)
{
sleepMin = action.Key.Minute;
}
else
{
var wakesupMin = action.Key.Minute;
for (int i = sleepMin; i < wakesupMin; i++)
{
currentGuard.Total += 1;
currentGuard.Minutes[i] += 1;
}
}
}
}
/// <summary>
/// Live implementation
/// </summary>
public void FindSolutionOld()
{
// Todo: refactor.
var list = _stream.ReadStringDocument();
var pattern1 = @".(\d\d\d\d)-(\d\d)-(\d\d).(\d\d):(\d\d)";
var pattern2 = @".(\d\d\d\d)-(\d\d)-(\d\d).(\d\d):(\d\d).\sGuard\s#(\d+)\s.*$";
var actions = new Dictionary <DateTime, int[]>();
for (int i = 0; i < list.Count; i++)
{
var line = list[i];
if (line[line.Length - 1] == 't')
{
var temp = Regex.Match(line, pattern2).Groups;
var time = new DateTime(int.Parse(temp[1].Value), int.Parse(temp[2].Value), int.Parse(temp[3].Value),
int.Parse(temp[4].Value), int.Parse(temp[5].Value), 0);
actions[time] = new int[] { 1, int.Parse(temp[6].Value) };
}
else if (line[line.Length - 2] == 'e')
{
var temp = Regex.Match(line, pattern1).Groups;
var time = new DateTime(int.Parse(temp[1].Value), int.Parse(temp[2].Value), int.Parse(temp[3].Value),
int.Parse(temp[4].Value), int.Parse(temp[5].Value), 0);
actions[time] = new int[] { 2 };
}
else
{
var temp = Regex.Match(line, pattern1).Groups;
var time = new DateTime(int.Parse(temp[1].Value), int.Parse(temp[2].Value), int.Parse(temp[3].Value),
int.Parse(temp[4].Value), int.Parse(temp[5].Value), 0);
actions[time] = new int[] { 3 };
}
}
var dict = new Dictionary <int, GuardMinutes>();
GuardMinutes currentTuple = null;
var sleepMin = -1;
foreach (var item in actions.OrderBy(t => t.Key))
{
var current = item.Value;
if (current[0] == 1)
{
if (!dict.ContainsKey(current[1]))
{
dict[current[1]] = new GuardMinutes();
}
currentTuple = dict[current[1]];
}
else if (current[0] == 2)
{
sleepMin = item.Key.Minute;
}
else if (sleepMin >= 0)
{
var wakesupMin = item.Key.Minute;
for (int i = sleepMin; i < wakesupMin; i++)
{
currentTuple.Total += 1;
currentTuple.Minutes[i] += 1;
}
}
}
var person = dict.OrderByDescending(t => t.Value.Total).First();
var max = person.Value.Minutes.Max();
var minutes = -1;
for (int i = 0; i < person.Value.Minutes.Length; i++)
{
if (person.Value.Minutes[i] == max)
{
var result = person.Key * i;
Console.WriteLine(result);
return;
}
}
}
