40求助（赛时代码）

#include<bits/stdc++.h>
using namespace std;

int main(){
    int T;
    cin >> T;
    for(int t=0;t<T;t++){
        bool v[1005][1005];
        memset(v,false,sizeof(v));
        char M[1005][1005];
        int n, m, k;
        int x, y, d;
        int ans = 0;
        cin >> n >> m >> k;
        cin >> x >> y >> d;
        v[x][y] = true;
        ans++;
        for(int i=1;i<=n;i++){
            for(int j=1;j<=m;j++){
                cin >> M[i][j];
            }
        }
        for(int i=0;i<k;i++){
            int x_, y_;
            if(d==0) x_ = x, y_ = y+1;
            if(d==1) x_ = x+1, y_ = y;
            if(d==2) x_ = x, y_ = y-1;
            if(d==3) x_ = x-1, y_ = y;
            if((M[x_][y_]=='.')&&(1<=x_&&x_<=n)&&(1<=y_&&y_<=m))
                x = x_, y = y_;
                if(!v[x][y]) ans++, v[x][y] = true;
            else
                d = (d+1)%4;
        }
        cout << ans << endl;
    }

    system("pause");
    return 0;
}

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