大数精确阶乘运算

#include <stdio.h>
#include <stdlib.h>

void main()
{  
int falg=1; 
while (falg)
{
unsigned int Factorial[1024];
int i=0;
int position=1,temp=0;
int Factorial_x,sgn_cnt,fac_cnt=1;
int carry=0;//进位
Factorial[0]=1;
    

// printf("This programm can work!!\n\n");
printf("Please input the Factorial_x:");
scanf("%d",&Factorial_x);

for (fac_cnt=1;fac_cnt<=Factorial_x;fac_cnt++)
{
carry=0;
for (sgn_cnt=0;sgn_cnt<position;sgn_cnt++)
{
temp=Factorial[sgn_cnt]*fac_cnt+carry;
Factorial[sgn_cnt]=temp%1000;
carry=temp/1000;
}
while (carry)