private BoardsContainer GetBoards(string[] input)
{
BoardsContainer boardsContainer = new BoardsContainer();
// Begin at second line
for (int i = 1; i < input.Length; i += 6)
{
// First line is a jump
Check[,] board = new Check[5, 5];
// Check the next 5 lines
for (int j = 1; j < 6; j++)
{
MatchCollection values = Regex.Matches(input[i + j], @"(\d+)");
for (int k = 0; k < values.Count; k++)
{
board[j - 1, k] = new Check()
{
Value = int.Parse(values[k].Value)
};
}
}
boardsContainer.Boards.Add(board);
}
return(boardsContainer);
}
protected override object ResolveFirstPart(string[] input)
{
BoardsContainer boardsContainer = GetBoards(input);
MatchCollection draws = Regex.Matches(input[0], @"(\d+)");
for (int i = 0; i < draws.Count; i++)
{
int value = int.Parse(draws[i].Value);
boardsContainer.MarkBoards(value);
List <Check[, ]> winningBoards = boardsContainer.GetWinningBoards();
if (winningBoards.Count != 0)
{
return(boardsContainer.GetSumOfAllMarkedValues(winningBoards[0]) * value);
}
}
return(-1);
}
protected override object ResolveSecondPart(string[] input)
{
BoardsContainer boardsContainer = GetBoards(input);
MatchCollection draws = Regex.Matches(input[0], @"(\d+)");
int lastWinningBoardValue = 0;
for (int i = 0; i < draws.Count; i++)
{
int value = int.Parse(draws[i].Value);
boardsContainer.MarkBoards(value);
List <Check[, ]> winningBoards = boardsContainer.GetWinningBoards();
for (int j = 0; j < winningBoards.Count; j++)
{
lastWinningBoardValue = boardsContainer.GetSumOfAllMarkedValues(winningBoards[j]) * value;
boardsContainer.Boards.Remove(winningBoards[j]);
}
}
return(lastWinningBoardValue);
}
