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List<int[]> list = new List<int[]>();
for (int i = 0; i < 6; i++)
{
for (int j = 0; j < 6; j++)
{
for (int k = 0; k < 6; k++)
{
if (i + j + k == 6)
{
list.Add(new int[] { i, j, k });
}
}
}
}
private List<int> GetSomeMethord(int sum, int count)
{
--代码实现过程
return null;
}
using System;
using System.Collections.Generic;
using System.Linq;
namespace ConsoleApplication1
{
class Program
{
static void Main(string[] args)
{
int count = 0;
foreach (var lst in GetSomething(6, 3))
{
Console.Write("第{0:D2}个解答:", ++count);
foreach (var x in lst)
Console.Write("{0} ", x);
Console.WriteLine();
}
Console.WriteLine("................Press any key");
Console.ReadKey();
}
public static IEnumerable<IEnumerable<int>> GetSomething(int sum, int count)
{
return GetSomething(sum, count, sum);
}
public static IEnumerable<IEnumerable<int>> GetSomething(int sum, int count, int maxNum)
{
if (count < 1)
throw new InvalidOperationException();
else if (sum <= 0)
yield break;
else if (count == 1)
{
if (sum <= maxNum)
yield return new List<int> { sum };
}
else
foreach (var x in from n in Enumerable.Range(1, maxNum)
let sub = GetSomething(sum - n, count - 1, n)
from lst in sub
select lst.Concat(new int[] { n }))
yield return x;
}
}
}