hdu 1849Rabbit and Grass(博弈)

超简单题用上^就行了，详细见NIM游戏小NIM

#include<cstdio>
int main()
{
  int m,s;
  while(scanf("%d",&m)&&m)
  {
    int ans=0;
    for(int i=0;i<m;i++)
    {
      scanf("%d",&s);
      ans^=s;
    }
    if(ans)
    printf("Rabbit Win!\n");
    else
    printf("Grass Win!\n");
  }
}