Discussion @ 1855. Trade Guilds of Erathia @ Timus Online Judge

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Discussion of Problem 1855. Trade Guilds of Erathia

WA6 Zearot 29 Aug 2014 15:43

I used segment tree to solve it and got WA6.
What's special about test 6? Thanks.

Re: WA6 mxzf0213 15 Sep 2016 12:46

Always remember to use long long!
please notice that a*b maybe exceed INT_MAX!
I have wa 6 and change this to ac!