Rounded float in Kaleidoscope challenge

Question

Hey there. I almost finished the Kaleidoscope challenge, which wasn‘t too difficult but I still run into the following issue (see code).

Any tips on how I can adequately round to two decimal places to conclude the challenge? :)

https://code.sololearn.com/c3FzGQY6783q/?ref=app

Answer 1

Because programming language implements Banker's Rounding, to solve real world issue; While you need a Maths rounding, rounding up for all occurrences of 0.05

https://en.m.wikipedia.org/wiki/Rounding#Rounding_functions_in_programming_languages

Try defining your own rounding function by checking the hundredth digit.

Answer 2

use setprecision

http://www.cplusplus.com/reference/iomanip/setprecision/

Answer 3

Thank you. I will try that.

Answer 4

It finally worked with << fixed << setprecision... But I encountered a totally new weird thing concerning rounded decimals. In this case I tried the following numbers: 3.345 and 3.445. The first number rounded up to 3.35 the second did not but became 3.44. How come?