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1891: 【信息学奥赛一本通】求阶乘的和
Memory Limit:128 MB
Time Limit:1.000 S
Judge Style:Text Compare
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Submit:144
Solved:121
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Description
给定正整数n,求不大于n的正整数的阶乘的和(即求1!+2!+3!+...+n!),输出阶乘的和。
Input
输入有一行,包含一个正整数n(1 < n < 12)。
Output
输出有一行:阶乘的和。
Sample Input
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5
Sample Output
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153
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