How to operate / i can't find the problem

Question

https://code.sololearn.com/cdPg1WC9JAQY/?ref=app

I think the problem is double

Answer 1

Yeah, you are right. In line 24 you are trying to use a %d for the output of a double. Use instead %f, which is the correct use for the output of float and double numbers.

Another mistake is in line 26. You missed the first quote and the \ before the singole quote.

I think it'all, have a nice day!