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Need help to find a corner case in 468-B problem
Hi? I'm struggling with this problem https://codeforces.net/contest/468/problem/B
I thought about this a lot, but still don't know where I messed!
Solution: 80961934
My approach was straight forward, for each element, e, I checked if there is a — e or b — e, if it's then I take the element the the appropriate group. Kind of DSU approach.
Thanks.
