12430 - Grand Wedding

All about problems in Volume 124. If there is a thread about your problem, please use it. If not, create one with its number in the subject.

Moderator: Board moderators

Post Reply
New poster
Posts: 37
Joined: Wed Mar 14, 2012 11:57 am
Location: Bangladesh

Re: 12430 - Grand Wedding

Post by forthright48 » Fri Aug 21, 2015 7:05 pm

Apparently we need to print -1 when we have to remove all roads. I couldn't figure this out by reading the statement. Not to mention, the statement doesn't have any constraints! I assumed both N and M to be less than 10^6. Hope this helps.
What ever happens, happens for good. Even when we get WA :p

Post Reply

Return to “Volume 124 (12400-12499)”