How we can find cail and floot using C ans C++?

Answer 1

I can give you hint,
When you subtract a foating number from its integer part you get number after dot.

ps: if you dont even know that, then you better study c++ first.

Answer 2

Include math.h (cmath for c++) library.
int i = ceil (3.2);
int j = floor(3.2);

Answer 3

I like to sole this by out created fanction not by defalt created
i want to create but i can not