OJ Board

Next time post in the existing thread. Print a blank line between datasets. Sorry I am new here... I printed a blank line between datasets. The input is: 2 0 3 22 -1 4 3 0 5 -1 -1 22 5 0 9 20 -1 -1 9 0 4 4 -1 20 4 0 5 17 8 3 1 1 1 3 5 2 4 0 3 22 -1 4 3 0 5 -1 -1 22 5 0 9 20 -1 -1 9 0 4 4 -1 20 4 0 ...

I have tried three kinds of output as follows but all show presentation error. 1. only a blank line between each dataset. 2. a blank line between each path of a dataset and additional blank line between dataset. 3. every path of all datasets is seperated by a blank line. And all of them don't print ...