奇数阶乘值

#include <stdio.h>
int main()
{
int n;
scanf("%d", &n);
int res = 1;
for(int i = 1; i <= n; i += 2)
{
for(int j = 1; j <= i; j++)
{
res *= j;
}
printf("%d! = %d\n", i, res);
res = 1;
}
return 0;
}