XDU 1001 又是苹果(状态压缩)

#include<cstdio>
#include<cstring>
const int maxn=1e6+;
using namespace std;
int r[maxn],c[maxn];
char pic[maxn];
void Swap(int &x,int &y)
{
    int temp=x;
    x=y;
    y=temp;
}
int main()
{
    int n,m,op,x,y,T,t=;
    while(scanf("%d%d",&n,&m)!=EOF){
        for(int i=;i<n;i++){
            scanf("%s",pic+m*i);
            //for(int j=0;j<m;j++)
            //    printf("%c\n",*(pic+m*i+j));
            r[i]=i;
        }
        for(int j=;j<m;j++)
            c[j]=j;
        scanf("%d",&T);
        printf("Case #%d:\n",t++);
        while(T--){
            scanf("%d%d%d",&op,&x,&y);
            if(op==){
                int pos=r[x-]*m+c[y-];
                if(pic[pos]=='T')
                    printf("Tree\n");
                else if(pic[pos]=='i')
                    printf("Phone\n");
                else
                    printf("Empty\n");
            }
            else if(op==)
                Swap(r[x-],r[y-]);
            else
                Swap(c[x-],c[y-]);
        }
    }
}