# include <iostream>
# include <iomanip>
using namespace std;
int factorial(int n);
int main()
{
int n;
cin >> n;
cout << " factorial of n = " << factorial(n) << endl;
return 0;
}
int factorial(int n)
{
if (n == 1){
return 1 ;
}else{
return factorial(n-1)*n ;
}
}
2.1 设计求 factorial(n)的递归算法
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转载自blog.csdn.net/weixin_38396940/article/details/121130088
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