编写一道c语言阶乘的题目

//---------------------------------------------------------------------------

#include <stdio.h>

int main(void)
{
int i;
double s=1;
for (i=1; i<=10; i++) {
s*=1.0/i;
}
printf("%e",s);
return 0;
}
//---------------------------------------------------------------------------

main()
{int n,s;
s=1;
for(n=1;n<=10;n++)
s=s*n;
int t = 1/s;
printf("%d",t);}