Perfect square and perfect cube

Question

Is there any predefined function in c++ to check whether the number is square of any number and same for the cube..

Answer 1

For perfect square you can also do:

if(sqrt(n)==floor(sqrt(n)))
    return true;
else
    return false;

For perfect cube you can:

if(cbrt(n)==floor(cbrt(n)))
    return true;
else
    return false;

Hope this helps.