Problem B: 简单递归1-求阶乘

Problem B: 简单递归1-求阶乘

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 359  Solved: 318
[Status] [Submit] [Creator:]

Description

已知求阶乘函数f(n)=1*2*3*4*···*n;(n<=12)
输入n,求函数的值


输入样例:10
输出样例:3628800