why priority_queue is not behaving as expected?

Revision en1, by ToErr, 2018-09-17 20:06:30

this submission using priority_queue is giving TLE : http://codeforces.com/contest/467/submission/43003735

where using set giving AC : http://codeforces.com/contest/467/submission/43003953

problem link: http://codeforces.com/contest/467/problem/D

could anyone point me out what is wrong here! i am literally not getting the point :(

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en1 English ToErr 2018-09-17 20:06:30 389 Initial revision (published)