求大数阶乘的快速算法！！！急

2025-01-02 13:53:14

推荐回答（4个）

回答1：

或者你先自己算一遍。。给写在哪个文件里，然后再算的时候直接读取就行了，半秒都用不了……

回答2：

你做梦呢，10000的阶乘就够你算N辈子了，还100000，你不如
算100000的100000次方，全是0的话你还有可能数的过来，可能性为0~~~

回答3：

For numIndex As Integer = 2 To number
carry = 0
For arrayIndex = 0 To arrayTail
midProduct = product(arrayIndex) * numIndex + carry
carry = midProduct \ DIVISOR
product(arrayIndex) = midProduct - DIVISOR * carry
Next arrayIndex

Do While carry <> 0
product(arrayIndex) = carry Mod DIVISOR
carry = carry \ DIVISOR
arrayIndex += 1
Loop
arrayTail = arrayIndex - 1
Next numIndex

回答4：

For
numIndex
As
Integer
=
2
To
number
carry
=
0
For
arrayIndex
=
0
To
arrayTail
midProduct
=
product(arrayIndex)
*
numIndex
+
carry
carry
=
midProduct
\
DIVISOR
product(arrayIndex)
=
midProduct
-
DIVISOR
*
carry
Next
arrayIndex
Do
While
carry
<>
0
product(arrayIndex)
=
carry
Mod
DIVISOR
carry
=
carry
\
DIVISOR
arrayIndex
+=
1
Loop
arrayTail
=
arrayIndex
-
1
Next
numIndex