We have the number 12385 . We want to know the value of the closest cube but higher than 12385. The answer will be 13824 .
Now, another case. We have the number 1245678 . We want to know the 5th power, closest and higher than that number. The value will be
1419857.
We need a function that receives two arguments, a value val , and the exponent of the power, pow_ , and outputs the value that
we want to find.
Let's see some cases:
(12385, 3) ==> 13824
(1245678, 5) ==> 1419857
The value, val will be always a positive integer.
The power, pow_ , always higher than 1 .