2382: 求n!
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Normal Judger
Creator:
Submit:75
Solved:24
Description
n! = 1 * 2 * …… * n 用递归的方法求n!
【输入】n
【输出】n!
【限制】n<=20
【输入】n
【输出】n!
【限制】n<=20
Sample Input Copy
5
Sample Output Copy
120