+1

I had WA#8 and miraculously found a bug in my backtracking&memorization with the following test:
> 50 2
> 99 100
> 98 99
The problem was in printing a solution, when N tasks for the first round are prepared properly, but the other N are contradictory (because I quit from backtracking too soon).

We probably wouldn't have experienced this if we had written a proper DP solution instead. :-)

Edited by author 08.07.2012 18:21