Reverse of loop

how this print(max(x+1,y+1,n-x,n-y)) is executed

max() is an inbuilt function in python . It is used return the maximum value passed in it . In this case
max(x+1,y+1,n-x,n-y) the expression which will have the max value will be returned.

Lets say x=0,y=0 and n=5 ,in this case the values in max function will look like-

max(1,1,5,5) amongst these values 5 is the maximum hence our max(x+1,y+1,n-x,n-y) will return 5

And using the print() function we are printing this value returned ,i.e 5

If there is a doubt about how its printing the 5 X 5 matrix using the nested loops then let me know and I will try to explain it to you.

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