Divide array into an array of subsequence array
c#
Solution
This is quite cute:
static class ChunkExtension
{
public static IEnumerable<T[]> Chunkify<T>(
this IEnumerable<T> source, int size)
{
if (source == null) throw new ArgumentNullException("source");
if (size < 1) throw new ArgumentOutOfRangeException("size");
using (var iter = source.GetEnumerator())
{
while (iter.MoveNext())
{
var chunk = new T[size];
chunk[0] = iter.Current;
for (int i = 1; i < size && iter.MoveNext(); i++)
{
chunk[i] = iter.Current;
}
yield return chunk;
}
}
}
}
static class Program
{
static void Main(string[] args)
{
List<byte> bytes = new List<byte>() {
1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 };
var chunks = bytes.Chunkify(4);
foreach (byte[] chunk in chunks)
{
foreach (byte b in chunk) Console.Write(b.ToString("x2") + " ");
Console.WriteLine();
}
}
}
Problem
I have a byte array: ``` byte[] bytes; // many elements ``` I need to divide it into subsequence of byte arrays of X elements. For example, x = 4. If bytes.Length does not multiply by X, then add 0 to last subsequence array so Length of all subsequnce must be X. Linq available. PS: my attempts ``` static void Main(string[] args) { List<byte> bytes = new List<byte>() { 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11 }; int c = bytes.Count / 4; for (int i = 0; i <= c; i+=4) { int diff = bytes.Count - 4; if (diff < 0) { } else { List<byte> b = bytes.GetRange(i, 4); } } Console.ReadKey(); } ```