Rounding Numbers

[wanting2learn]

Hi I need to either round a number up or down depending on the users choice.

For example: 3194 can be rounded to either 3200 or 3190
3194 can be rounded to either 3200 or 3190
3019 can be rounded to either 3010 or 3020

How can I do this?

Thanks

[Scipio]

Do you have some code already? Maybe you should look at the module ('%') operation, aldo there're a lot of ways to solve this.

Ps. Sorry, we won't give you your code, aldo we'll always help you when we can. Btw, smart name ;)

[helios]

http://www.cplusplus.com/forum/articles/3638/