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NC14840. 数的阶乘

描述

输入一个非负整数,求其阶乘。

输入描述

输入一个非负整数n.

输出描述

输出非负整数n的阶乘

示例1

输入:

4

输出:

24

原站题解

import java.util.Scanner;
public class Main {
public static void main(String[] arg) {
Scanner scanner = new Scanner(System.in);
// todo
}
}
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Python(2.7.3) 解法, 执行用时: 13ms, 内存消耗: 2816K, 提交时间: 2018-01-04 07:37:47

a=int(input())
s=1
while a>0:
s=s*a
a=a-1
print(s)

pypy3 解法, 执行用时: 57ms, 内存消耗: 27676K, 提交时间: 2022-08-13 22:55:02

import math
n=int(input())
print(math.factorial(n))

Python3 解法, 执行用时: 45ms, 内存消耗: 4836K, 提交时间: 2023-07-10 11:10:56

import math
print(math.factorial(int(input())))

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