Can someone explain logic of problems of recently concluded 2nd practice session. Thanks !
here is the link for first 2 questions imgur.com/a/2VDpo
Even a small hint would be great.
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Yes, someone please explain the logic of the problems in the practice session…
The problems are a copy of previous regionals. You can find those problems in this link Contest link. You can find the editorials of that contest here. Happy coding 
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