Problem C: 求n的阶乘
Memory Limit:128 MB
Time Limit:1 S
Judge Style:Text Compare
Creator:
Submit:1581
Solved:1191
Description
输入一个正整数n,求n的阶乘(n!=1*2*3*...*n)
Input
输入一个正整数
Output
输出n!的值
Sample Input Copy
3
Sample Output Copy
6
HINT
结果在int范围内