Doubt in my code

#1

Hello, I want to know how do I print all submatrices of a 2d array ?
I have taken a input 2d array from the user. Now how to proceed further ?

#2

hello @yashsharma4304

fix top left corner of submatrix and bottom right corner of submatrix and then print everthing in that submatrix.

for(int x1=0;x1<m; x1++)   {
      for(int y1=0;y1<n;y1++) {  // (x1,y1) corrdinates of top left corner 
                           
           for(int x2=x1;x2<m;x2++){
                         for(int y2=y1;y2<n;y2++){
                                    // (x2,y2) are corrdinates of bottom right corner
                                
                                     // now simply print all values of this submatrix
                                    
                                  for(int i=x1;i<=x2;i++){
                                         for(int j=y1;j<=y2;j++){
                                                 cout<<mat[i][j]<<" ";
                                              }
                                            cout<<"\n";
                                  }
                                  
                         }
               
              }
             

   }
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