Help!!!!!

Revision en1, by Blackness, 2017-01-06 04:00:49

I'd like to know if I'm allowed to get some hints on problems(previous ones from past contest). If possible, can I have some help on the problem:Sonya and Queries?

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en1 English Blackness 2017-01-06 04:00:49 173 Initial revision (published)