nathan-osman

package main

import (
	"log"
	"syscall"
	"unsafe"
)

var (
	kernel32 = syscall.NewLazyDLL("kernel32.dll")

mbenford

public static class Permutations
{
    public static IEnumerable<IEnumerable<T>> Get<T>(IEnumerable<T> set, IEnumerable<T> subset = null)
    {
        if (subset == null) subset = new T[] { };
        if (!set.Any()) yield return subset;

        for (var i = 0; i < set.Count(); i++)
        {
            var newSubset = set.Take(i).Concat(set.Skip(i + 1));