class Solution
{
public:
bool solve(vector<vector<int>>grid,int ir,int ic,int row,int col,vector<vector<int>>memo){
if(!(ir>=0 && ir<row && ic>=0 && ic<col)) return false;
if(memo[ir][ic]==0)return false;
if(grid[ir][ic]==2){
memo[ir][ic]=1;
return true;
}
if(grid[ir][ic]==0){
memo[ir][ic]=0;
return false;
}
int temp=grid[ir][ic];
grid[ir][ic]=0;
bool a=solve(grid,ir+1,ic,row,col,memo);
bool b=solve(grid,ir-1,ic,row,col,memo);
bool c=solve(grid,ir,ic+1,row,col,memo);
bool d=solve(grid,ir,ic-1,row,col,memo);
grid[ir][ic]=temp;
bool ans = a||b||c||d;
if(ans)memo[ir][ic]=1;
else memo[ir][ic]=0;
return ans;
}
//Function to find whether a path exists from the source to destination.
bool is_Possible(vector<vector<int>>& grid)
{
//code here
int row = grid.size();
int col = grid[0].size();
int ir,ic;
vector<vector<int>>memo(501,vector<int>(501,-1));
for(int i=0;i<row;i++){
for(int j=0;j<col;j++){
if(grid[i][j]==1){
ir=i;
ic=j;
}
}
}
return solve(grid,ir,ic,row,col,memo);
}
};
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