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#include 
   
    using namespace std;class Solution {public:    vector
    
      printMatrix(vector
     
      
        > matrix) {    if(matrix.size()<=0) return *(new vector
       
        );    // right , down, left , up;    const int dirX[] = {0,1,0,-1};    const int dirY[] = {1,0,-1,0};    int X = matrix.size() ;    int Y = matrix[0].size();    int locX = 0;    int locY = -1;    vector
        
          ans; while(X>0 && Y>0){ X--; //left to right; for(int i=0;i