C递归计算阶乘的两种写法（1）

This is used to calculate this function

#include <stdio.h>
long long factoiral(int n)
{
int i = 1;
for (int m = 1; m <= n; m++)
m *= i
return m;
}
long long C(int n, int m)
{
return (factorial(n) / (factorial(m) * factorial(n - m))
}

#include <stdio.h>
long long factorial(int n)
{
if (n == 1)
return 1;
else
return n * factorial(n - 1);
}

long long yoo(int n, int m)
{
return factorial(n) / factorial(m) * factorial(n - m);
}

int main(void)
{
long long answer;
printf("this is once test\n");
answer = factorial(10);
printf("answer = %lld", answer);
}

结果如下（The result would be)：
在一定程度上，这两种方法是可行，但会出现上溢现象，如何解决将留到下次再讲