class Solution {
public:
int move(vector<vector<int>>& o) {
int length = o.size(), width = o[0].size();
if(length==0|| width==0||o[0][0] == 1
class Solution {
public:
int move(vector<vector<int>>& o) {
int length = o.size(), width = o[0].size();
if(length==0|| width==0||o[0][0] == 1