【例29.1】 求阶乘
You cannot submit for this problem because the contest is ended. You can click "Open in Problem Set" to view this problem in normal mode.
说明
利用for循环求的值。
提示，。
输入格式
输入一个正整数,对于所有数据,。
输出格式
输出的值。
样例
424
You cannot submit for this problem because the contest is ended. You can click "Open in Problem Set" to view this problem in normal mode.
利用for循环求的值。
提示，。
输入一个正整数,对于所有数据,。
输出的值。
424