look at 12,13 line, why wrong?

Question

why do I add these two lines to the wrong?
if you get rid of these two lines. that's correct.
https://code.sololearn.com/c6bWFcyY1zAH/?ref=app

Answer 1

Try changing the name of the variables.

Answer 2

Because you had previouslly declared 'x' and 'y' as int.
You cannot afterwards declare them as doubles.
Instead declare other variables like 'x1' and 'y1' and ith ahould work.

Answer 3

You are good people

You are smart people

Thank you for your