About the challenge submission

Hey everyone. In my first attempt I tried $and operator and got 1020 results, then I checked manually the results saw that there are couple of 64s etc.

Then I tried $elemMatch operator and got the 744 results but my submission page says I’m incorrect. After an hour I came here to check the solutioni it shows 744 as well. Is there something wrong on my end?

Challenge

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Same here! I had to write :: on the first line and the answer on the second line

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Yeah, I did the same after all

Yes, same also here.
I think they was a misspell in the result value that the author have type in.
Furthermore I can’t try again with :: 744 , it’s seems lock on my side to try again (even so it’s say try again)

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I also answered 744, but it came out as wrong. Actually 744 is the right answer.

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Seems a BUG.Mongo DB team trying to fix it as per below link

Challenge Problem - did not accept a correct answer

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