Q11204: Musical instruments

原文
http://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=2145
中譯
http://luckycat.kshs.kh.edu.tw/homework/q11204.htm

#include "stdio.h"

int main()
{
  int num,i,j,k,total;
  scanf(" %d",&num);
  for(i = 0;i < num;i++)
  {
 int N,M,tmp,first[32]={0},times = 1;
 scanf(" %d %d",&N,&M);
 for(j = 0;j < M;j++)
 {
   for(k =0;k < N;k++)
   {
  scanf(" %d",&tmp);
  if( tmp == 1 )
    first[k] += 1;
   }
 }
 for(j = 0;j < N;j++)
 {
   if( first[j] > 0)
   {
  times *= first[j];
   }
 }
 printf("%d\n",times);
  }
  return 0;
}