How could this guy submit B and G2, C and G1 at the same time?

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How could this guy submit B and G2, C and G1 at the same time?

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oh, A and D also
seems suspicious
It's really even more impressive that he/she/they is able to use different code templates for all the questions in this short time period! That's how :D
I think that several people were sitting in this account and solving problems
so bad, not fair at all
It seems bro needs a specialist tag so bad.
But instead he (I mean they) got expert ;-;