WAWAWAWA
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WAWAWAWA
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BH3rd楼主2023/3/7 13:53
#include<bits/stdc++.h>
using namespace std;
int main()
{
	int n,s=1;
	cin>>n;
	{
		s=s*(n-i);
	}
	cout<<s<<endl;
	return 0;
}
2023/3/7 13:53
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