public class Migong {
private int gard[][]={ {1,1,1,1,0,1,1,1},
{0,0,0,1,1,1,1,1},
{1,0,1,0,1,1,1,1},
{0,0,1,0,0,0,1,1},
{1,0,0,0,0,1,1,1},
{1,0,1,1,0,1,1,1},
{1,0,1,1,1,1,1,1}};
private boolean recurive(int row,int column){
boolean done = false;
if(valid(row,column)){
gard[row][column]=3;//×ß¹ýµÄ¸ñ×Ó
if(row==gard.length-1&&column==gard[0].length-1){
done = true;
}else{
done=recurive(row+1,column);//ÏÂÒÆ
if(!done){
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