Hi everyone.
I can't solve this problem I have tried so much can you please tell me what's wrong with my code I keep getting WA on 42.
Thanks in advance and have a nice day.
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Replace dsu[b] = findd(a) by dsu[findd(b)] = findd(a).
http://mirror.codeforces.com/contest/456/submission/19875935
Thank you very much man you really have no idea how much this means to me for someone to debug my messy code.
again thank you and have a wonderful day.
:)