杭电acm1570

http://acm.hdu.edu.cn/showproblem.php?pid=1570

数字较小，打表，然后，过

#include<stdio.h>
int main()
{
   int i,a[20],n,m,t,ans;
   char s[3];
   a[1]=a[0]=1;
   for(i=2;i<=10;i++)
      a[i]=a[i-1]*i;
   scanf("%d",&t);
   gets(s);
   while(t--)
   {
     scanf("%s%d%d",&s,&n,&m);
     if(s[0]=='A')
       ans=a[n]/a[n-m];
     else ans=a[n]/(a[m]*a[n-m]);
     printf("%d\n",ans);
   }
   return 0;
}