Problem Description
Compare two version numbers version1 and version2.
- If version1 > version2 return 1,
- If version1 < version2 return -1,
- otherwise return 0.
You may assume that the version strings are non-empty and contain
only digits and the
. character.
The
. character does not represent a decimal point and is used to
separate number sequences. For instance, 2.5 is not "two and a half" or "half way to version three", it is the fifth second-level revision of the second first-level revision.
Note: Here is an example of version numbers ordering:
0.1 < 1.1 < 1.2 < 1.13 < 1.13.4
1 <= |A|, |B| <= 5000
Input Format
The first argument is a string A representing version1.
The first argument is a string B representing version2.
Output Format
Return an integer.
Example Input
Example Output
-1
Example Explanation
Version1 = "1.13"
Version2 = "1.13.4"
Version1 < version2, hence return -1
NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified.
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