AtCoder Beginner Contest 055
B
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原题
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Problem Statement

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Snuke loves working out. He is now exercising $N$ times.

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Before he starts exercising, his power is $1$. After he exercises for the $i$-th time, his power gets multiplied by $i$.

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Find Snuke's power after he exercises $N$ times. Since the answer can be extremely large, print the answer modulo $10^{9}+7$.

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Constraints

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  • $1 ≤ N ≤ 10^{5}$
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Input

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The input is given from Standard Input in the following format:

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N

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Output

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Print the answer modulo $10^{9}+7$.

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样例

Input #1
3
Output #1
6
- After Snuke exercises for the first time, his power gets multiplied by $1$ and becomes $1$. - After Snuke exercises for the second time, his power gets multiplied by $2$ and becomes $2$. - After Snuke exercises for the third time, his power gets multiplied by $3$ and becomes $6$.
Input #2
10
Output #2
3628800
Input #3
100000
Output #3
457992974
Print the answer modulo $10^{9}+7$.
题目信息
题号
abc055_b
时间限制
2 s
内存限制
256 MB

题面与样例版权归 AtCoder 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。