Use a recursive algorithm to find the value of the 30th digit
- 2020-06-12 10:30:57
- OfStack
1,1,2,3,5,8,13,21,34,55....
Find the value of the 30th digit:
Recursive method:
class Program
{
static void Main(string[] args)
{
// Looking for:
//1,1,2,3,5,8,13,21,34,55,......
int num = 30;
Console.WriteLine(GetNum(30));
Console.ReadKey();
}
/// <summary>
/// For the first 30 The value of the digit
/// </summary>
/// <param name="i"></param>
/// <returns></returns>
private static int GetNum(int i)
{
if (i<=0)
{
return 0;
}else if (i>0 && i<=2)
{
return 1;
}
else
{
return GetNum(i - 1) + GetNum(i - 2);
}
}
}