/// <summary>
/// Reads a problem from a stream.
/// </summary>
/// <param name="stream">Stream to read from</param>
/// <returns>The problem</returns>
public static Problem Read(Stream stream)
{
TemporaryCulture.Start();
StreamReader input = new StreamReader(stream);
List <double> vy = new List <double>();
List <Node[]> vx = new List <Node[]>();
int max_index = 0;
while (input.Peek() > -1)
{
string[] parts = input.ReadLine().Trim().Split();
vy.Add(double.Parse(parts[0]));
int m = parts.Length - 1;
Node[] x = new Node[m];
for (int j = 0; j < m; j++)
{
x[j] = new Node();
string[] nodeParts = parts[j + 1].Split(':');
x[j].Dim = int.Parse(nodeParts[0]);
x[j].Value = double.Parse(nodeParts[1]);
}
if (m > 0)
{
max_index = Math.Max(max_index, x[m - 1].Dim);
}
vx.Add(x);
}
TemporaryCulture.Stop();
return(new Problem(vy.Count, vy.ToArray(), vx.ToArray(), max_index));
}
/// <summary>
/// Writes a problem to a stream.
/// </summary>
/// <param name="stream">The stream to write the problem to.</param>
/// <param name="problem">The problem to write.</param>
public static void Write(Stream stream, Problem problem)
{
TemporaryCulture.Start();
StreamWriter output = new StreamWriter(stream);
for (int i = 0; i < problem.N; i++)
{
output.Write(problem.Y[i]);
for (int j = 0; j < problem.X[i].Length; j++)
{
output.Write(" {0}:{1}", problem.X[i][j].Dim, problem.X[i][j].Value);
}
output.WriteLine();
}
output.Flush();
TemporaryCulture.Stop();
}