0分求助

#include<cstdio>
int fx(int x,int d){
    if(d==1) return(x+1);
    else if(d==3) return(x-1);
    else return x;
}
int fy(int y,int d){
    if(d==0) return(y+1);
    else if(d==2) return(y-1);
    else return y;
}
int main(){
    int m,n,t,k,x,y,d,ans=0;
    char p;
    scanf("%d",&t);
    for(int i=0;i<t;i++){
        scanf("%d",&n);
        scanf("%d",&m);
        int arr[n][m]={0};
        scanf("%d",&k);
        scanf("%d",&x);
        scanf("%d",&y);
        scanf("%d",&d);
        x--;
        y--;
        for(int j=0;j<n;j++){
            for(int q=0;q<m;q++){
                scanf("%c",&p);
                if(p=='\n'){
                    q-=1;
                    continue;
                }
                if(p=='x') arr[j][q]=-1;
            }
        }

        for(int j=0;j<k;j++){
            if(arr[x][y]==0){
                ans++;
                arr[x][y]++;
            }
        if(fx(x,d)<0 or fy(y,d)<0 or fy(y,d)>=m or fx(x,d)>=n){
            d=(d+1)%4;
            continue;
        }
            if(arr[fx(x,d)][fy(y,d)]==-1){
            d=(d+1)%4;
            continue;
        }

        x=fx(x,d);
        y=fy(y,d);
        if(arr[x][y]==0){
                ans++;
                arr[x][y]++;
            }
    }
        printf("%d\n",ans);
    }

}