Getting wrong answer but for no reason,

#1

My code: https://ideone.com/RkUJQa

#2

Change the printing line in your code to

 cout <<fixed<<setprecision(4)<< (double)(sum)/q.size() << " ";

as they need precision upto 4 decimal spaces

#3

Done with this change, but please tell me how Kartik bhaiya was able to get AC even without writting fixed setprecion(4), in the video solution.

#4

I haven’t seen the video , so not sure. But usually we have to do this only.

#5

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