There is an expression
1/30
How to round the result to an integer? For example, in order for the number 1
Answer 1, Authority 100%
For example,
math.ceiling (1.0 / 30.0)
Do not forget that you are using an integer division. The result of division 1/30 is already 0. Therefore, go to the division of fractional numbers (1.0 / 30.0 = 0.03333333 …), and this number is rounded up.
Answer 2, Authority 64%
Use Ceiling
math.ceiling (1.0 / 30.0)
Answer 3, Authority 55%
You can without Math: (A + B - 1) / B
Answer 4, Authority 45%
Option with integer division looks like this:
(A * B + B * B-1) / (B * B)
We will find an integer option.
It is easy to verify that Ceil (A / B) = - Floor (-A / B)
Those. If A / B is rounding down, then - (- A / B) This rounding up.
If with integer division, the fractional part is simply discarded (which corresponds to the operation TRUNC), then in the case of AB & GT; 0 rounding up is - (- A / B) ,
And in the case of AB & LT; 0 is A / B .
Answer 5
From the point of view of setting the problem, then yes, option
math.ceiling (1.0 / 30.0);
will be true.
But from the point of view of logic it would be better to use
(int) math.round (1.0 / 30.0, 0);
rounding occurs in the nearest side