Score : 200 points
Given is an integer N. Find the number of digits that N has in base K.
For information on base-K representation, see Positional notation - Wikipedia.
Input is given from Standard Input in the following format:
N K
Print the number of digits that N has in base K.
11 2
4
In binary, 11 is represented as 1011
.
1010101 10
7
314159265 3
18