为什么0分？？

#include<bits/stdc++.h>
using namespace std;
char a[1010][1010];
bool b[1010][1010];
int n, m, k, x, y, d;
int main(){
    freopen("explore.in", "r", stdin);
    freopen("explore.out", "w", stdout);
    int T;
    cin >> T;
    while(T--){
        cin >> n >> m >> k >> x >> y >> d;
        for(int i = 1; i <= n; i++){
            for(int j = 1;j <= m; j++){
                cin >> a[i][j];
            }
        }
        for(int i = 1; i <= n; i++){
            for(int j = 1; j <= m; j++){
                b[i][j] = false;
            }
        }
        b[x][y] = true;
        while(k--){
            if(d == 0){
                if(x >= 1 and x <= n and y + 1 >= 1 and y + 1 <= m and a[x][y + 1] == '.'){
                    x = x;
                    y++;
                }else{
                    d = (d + 1) % 4;
                }
            }else if(d == 1){
                if(x + 1 >= 1 and x + 1 <= n and y >= 1 and y <= m and a[x + 1][y] == '.'){
                    x++;
                    y = y;
                }else{
                    d = (d + 1) % 4;
                }
            }else if(d == 2){
                if(x >= 1 and x <= n and y - 1 >= 1 and y - 1 <= m and a[x][y - 1] == '.'){
                    x = x;
                    y--;
                }else{
                    d = (d + 1) % 4;
                }
            }else if(d == 3){
                if(x - 1 >= 1 and x - 1 <= n and y >= 1 and y <= m and a[x - 1][y] == '.'){
                    x--;
                    y = y;
                }else{
                    d = (d + 1) % 4;
                }
            }
            b[x][y] = true;
        }
        int ans = 0;
        for(int i = 1; i <= n; i++){
            for(int j = 1; j <= m; j++){
                if(b[i][j]){
                    ans++;
                }
            }
        }
        cout << ans << endl;
    }
    return 0;
}