摇骰子

摇骰子。

#include<cstdio>
inline bool valid(int x,int y,int n,char str[][55]){
    return x>=0&&x<n&&y>=0&&y<n&&(str[x][y]=='#'||str[x][y]=='E'||str[x][y]=='S');
}
void change1(int *a){
    for(int i=4;i>=1;i--)
        a[i] = a[i-1];
    a[0] = a[4];
}
void change2(int *a){
    a[4] = a[0];
    for(int i=0;i<4;i++)
        a[i] = a[i+1];
}
int main(){
    int t,n;
    int sx,sy;
    char str[55][55];
    scanf("%d",&t);
    while(t--){
        scanf("%d",&n);
        for(int i=0;i<n;i++)
            scanf("%s",str[i]);
        for(int i=0;i<n;i++)
        for(int j=0;j<n;j++)
            if(str[i][j]=='S'){
                sx = i;sy = j;
            }
        int axis1[5] = {6,2,1,5},axis2[5]={6,3,1,4};
        while(1){
            char fin = str[sx][sy];
            str[sx][sy] = axis1[0]+'0';
            if(fin=='E')break;
            if(valid(sx,sy-1,n,str)){
                sy--;
                axis2[0] = axis1[3];
                axis2[2] = axis1[1];
                change1(axis1);
                continue;
            }
            if(valid(sx,sy+1,n,str)){
                sy++;
                axis2[0] = axis1[1];
                axis2[2] = axis1[3];
                change2(axis1);
                continue;
            }
            if(valid(sx-1,sy,n,str)){
                sx--;
                axis1[0] = axis2[3];
                axis1[2] = axis2[1];
                change1(axis2);
                continue;
            }
            if(valid(sx+1,sy,n,str)){
                sx++;
                axis1[0] = axis2[1];
                axis1[2] = axis2[3];
                change2(axis2);
                continue;
            }
        }
        for(int i=0;i<n;i++)
            puts(str[i]);
    }
    return 0;
}