Small factorials.c

#include<stdio.h>
int main()
{
    int t,a[160],n,i,j,temp,m,x;
    scanf("%d",&t);
    while(t--)
    {
              scanf("%d",&n);
              a[0]=1;
              m=1;
              temp = 0;
              for(i=1;i<=n;i++)
              {
                               for(j=0;j<m;j++)
                               {
                                               x = a[j]*i+temp;
                                               a[j]=x%10;
                                               temp = x/10;
                               }
                               while(temp!=0)
                               { 
                                 a[m]=temp%10;
                                 temp = temp/10;
                                 m++;
                               }
              }
              for(i=m-1;i>=0;i--)
              printf("%d",a[i]);
              printf("\n");
    }
    return 0;
}