| 
 | 
back to boardIs it clear enough? Posted by  Ismaeel 14 Jul 2015 17:15 I didn't really got it. Can anyone explain it more? Re: Is it clear enough? Posted by  orzczt 3 Apr 2016 12:49 You can simply consider strings that consist of 0 and 1s. It won't make any change to the problem.  |  
  | 
|