1840519_ac_0ms_24k.c

北大大牛代码 1240道题的原代码 超级权威

# include <stdio.h>
long a[15]={1,0,6,12,90,360,2040,10080,54810,290640,1588356,8676360,47977776,266378112,1488801600};
void main(){
  int m, n;
  scanf("%d",&n);
  while(n--){
  scanf("%d",&m);
  printf("%ld\n",a[m]);
 }
}