private static void Set(RoadNode current, long vindex, long value, Queue <RoadNode> q)
{
if (current.Values[vindex] == null)
{
current.Values[vindex] = value;
q.Enqueue(current);
}
if (current.Values[vindex] > value)
{
current.Values[vindex] = value;
q.Enqueue(current);
}
}
private static void Go(Queue <RoadNode> q, RoadNode[,] map, RoadNode current, int vindex)
{
checked
{
Debug.Assert(current.Values[vindex] != null);
long time = current.Values[vindex].Value;
long tlight = (time - current.T) % (current.S + current.W);
if (tlight < 0)
{
tlight += (current.S + current.W);
}
switch (vindex)
{
case 0:
if (tlight < current.S)
{
Set(current, 1, time + 1, q);
}
else
{
Set(current, 1, time + 1 + (current.W - (tlight - current.S)), q);
}
if (tlight >= current.S)
{
Set(current, 3, time + 1, q);
}
else
{
Set(current, 3, time + current.S - tlight + 1, q);
}
if (current.Row < map.GetLength(0) - 1)
{
Set(map[current.Row + 1, current.Col], 1, time + 2, q);
}
if (current.Col > 0)
{
Set(map[current.Row, current.Col - 1], 3, time + 2, q);
}
break;
case 1:
if (tlight < current.S)
{
Set(current, 0, time + 1, q);
}
else
{
Set(current, 0, time + 1 + (current.W - (tlight - current.S)), q);
}
if (tlight >= current.S)
{
Set(current, 2, time + 1, q);
}
else
{
Set(current, 2, time + current.S - tlight + 1, q);
}
if (current.Row > 0)
{
Set(map[current.Row - 1, current.Col], 0, time + 2, q);
}
if (current.Col > 0)
{
Set(map[current.Row, current.Col - 1], 2, time + 2, q);
}
break;
case 2:
if (tlight < current.S)
{
Set(current, 3, time + 1, q);
}
else
{
Set(current, 3, time + 1 + (current.W - (tlight - current.S)), q);
}
if (tlight >= current.S)
{
Set(current, 1, time + 1, q);
}
else
{
Set(current, 1, time + current.S - tlight + 1, q);
}
if (current.Row > 0)
{
Set(map[current.Row - 1, current.Col], 3, time + 2, q);
}
if (current.Col < map.GetLength(1) - 1)
{
Set(map[current.Row, current.Col + 1], 1, time + 2, q);
}
break;
case 3:
if (tlight < current.S)
{
Set(current, 2, time + 1, q);
}
else
{
Set(current, 2, time + 1 + (current.W - (tlight - current.S)), q);
}
if (tlight >= current.S)
{
Set(current, 0, time + 1, q);
}
else
{
Set(current, 0, time + current.S - tlight + 1, q);
}
if (current.Row < map.GetLength(0) - 1)
{
Set(map[current.Row + 1, current.Col], 2, time + 2, q);
}
if (current.Col < map.GetLength(1) - 1)
{
Set(map[current.Row, current.Col + 1], 0, time + 2, q);
}
break;
}
}
}
public static void Main(string[] args)
{
if (args.Length == 2)
{
Console.SetIn(new StreamReader(args[0]));
Console.SetOut(new StreamWriter(args[1]));
}
int numCases = int.Parse(Console.ReadLine().Trim());
for (int currentCase = 1; currentCase <= numCases; currentCase++)
{
var input = Console.ReadLine().Split(' ').Select(s => long.Parse(s)).ToArray();
var n = input[0];
var m = input[1];
RoadNode[,] map = new RoadNode[n, m];
for (long i = 0; i < n; i++)
{
var traf = Console.ReadLine().Split(' ').Select(s => long.Parse(s)).ToArray();
for (long k = 0; k < m; k++)
{
var s = traf[3 * k];
var w = traf[3 * k + 1];
var t = traf[3 * k + 2];
map[i, k] = new RoadNode(i, k, s, w, t);
}
}
Queue <RoadNode> q = new Queue <RoadNode>();
q.Enqueue(map[n - 1, 0]);
map[n - 1, 0].Values[0] = 0;
while (q.Count > 0)
{
RoadNode r = q.Dequeue();
if (r.Values[0] != null)
{
Go(q, map, r, 0);
}
if (r.Values[1] != null)
{
Go(q, map, r, 1);
}
if (r.Values[2] != null)
{
Go(q, map, r, 2);
}
if (r.Values[3] != null)
{
Go(q, map, r, 3);
}
}
Console.Write("Case #{0}: ", currentCase);
Console.WriteLine(map[0, m - 1].Values[2]);
}
if (args.Length == 2)
{
Console.In.Close();
Console.Out.Close();
Console.SetIn(new StreamReader(Console.OpenStandardInput()));
Console.SetOut(new StreamWriter(Console.OpenStandardOutput()));
}
}