Problem1061--【C语言训练】计算一个整数N的阶乘

1061: 【C语言训练】计算一个整数N的阶乘

Time Limit: 1 Sec  Memory Limit: 128 MB
Submit: 412  Solved: 270
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Description

计算一个整数N的阶乘

Input

一个整数N, (0〈=N〈=12)

Output

整数N的阶乘.

Sample Input Copy

5

Sample Output Copy

120

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