Sorting a binary 2D matrix?

Question

I\'m looking for some pointers here as I don\'t quite know where to start researching this one.

I have a 2D matrix with 0 or 1 in each cell, such as:

  1         


        

Answer 1

Here's a starting point:

Convert each row from binary bits into a number

Sort the numbers in descending order.

Then convert each row back to binary.