为什么样例过不了，玄关

#include<bits/stdc++.h>
using namespace std;
int t;
int n,m,k;
int x,y,d;
char a[1005][1005];
bool vis[1005][1005];
int ans=0;
int main(){
    cin>>t;
    for(int xx=1;xx<=t;xx++){
        cin>>n>>m>>k;
        cin>>x>>y>>d;
        ans=0;
        memset(vis,false,sizeof(vis));
        for(int i=1;i<=n;i++){
            for(int j=1;j<=m;j++){
                cin>>a[i][j];
            }
        }
        for(int i=1;i<=k;i++){
            if(d==0){
                int xx=x;
                int yy=y+1;
                if(xx<=n&&xx>=1&&yy<=m&&yy>=1){
                    vis[xx][yy]=true;
                    x=xx;
                    y=yy;
                }
                else{
                    d=(d+1)%4;
                }
            }
            if(d==1){
                int xx=x+1;
                int yy=y;
                if(xx<=n&&xx>=1&&yy<=m&&yy>=1){
                    vis[xx][yy]=true;
                    x=xx;
                    y=yy;
                }
                else{
                    d=(d+1)%4;
                }
            }
            if(d==2){
                int xx=x;
                int yy=y-1;
                if(xx<=n&&xx>=1&&yy<=m&&yy>=1){
                    vis[xx][yy]=true;
                    x=xx;
                    y=yy;
                }
                else{
                    d=(d+1)%4;
                }
            }
            if(d==3){
                int xx=x-1;
                int yy=y;
                if(xx<=n&&xx>=1&&yy<=m&&yy>=1){
                    vis[xx][yy]=true;
                    x=xx;
                    y=yy;
                }
                else{
                    d=(d+1)%4;
                }
            }
        }
        for(int i=1;i<=n;i++){
            if(vis[i]){
                ans++;
            }
        }
        cout<<ans+1<<endl;
    }
    return 0;
}