> #include<stdio.h>
> #include<iostream>
> #include<string.h>
> using namespace std;
> 
> #define FOPEN freopen("d:\\1.txt","r",stdin)
> //#define lowbit(x) x & -x
> int n;
> int num[1005][1005];
> int lowbit(int x){
>     return x&(-x);
> }
> 
> void setn(int a,int b)
> {
>     int tmp = a;
>     while(b <= n)
>     {
>         a = tmp;
>         while(a <= n)
>         {
>             num[a][b] ++ ;
>             a += lowbit(a);
>         }
>         b += lowbit(b);
>     }
> }
> int get(int x,int y)
> {
>     int s = 0;
>     int tmp = x;
>     while(y>0)
>     {
>         x = tmp;
>         while(x>0)
>         {
>             s += num[x][y];
>             x -= lowbit(x);
>         }
>         y -= lowbit(y);
>     }
>     return s;
> }
> int main()
> {
>     FOPEN;
>     int ces;
>     int t,a,b,c,d;
>     cin>>ces;
>     while(ces--)
>     {
>         memset(num,0,sizeof(num));
>         cin>>n>>t;
>         n++;
>         for(int i=0;i<t;i++)
>         {
>             char ctmp;
>             cin>>ctmp;
>             if(ctmp == 'C')
>             {
>                 cin>>a>>b>>c>>d;
>                 setn(a,b);
>                 setn(c+1,b);
>                 setn(a,d+1);
>                 setn(c+1,b+1);
>             }
>             else
>             {
>                 cin>>a>>b;
>                 int ss = get(a,b);
>                 cout<<ss%2<<endl;
>             }
>         }
>         if(ces) printf("\n");
>     }
> }
 setn(a,b);
>                 setn(c+1,b);
>                 setn(a,d+1);
>                 setn(c+1,b+1);
这块错了 自己整错了 不要说poj