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#include 
   
    using namespace std;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};    vector
        
          ans; int locX = 0; int locY = 0; int cnt = 0; int L = matrix.size() - 1; ans.resize(matrix.size()*matrix.size()); while(L>0){ for(int i=0;i<4;i++){ for(int j=0;j