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.
Here is an example of version numbers ordering:
0.1 < 1.1 < 1.2 < 13.37
Idea: make two versions same length. Not literally, but in runtime
class Solution:
# @param {string} version1
# @param {string} version2
# @return {integer}
## Idea: make two versions same length. Not literally, but in runtime
def compareVersion(self, version1, version2):
v1 = version1.split(".")
v2 = version2.split(".")
len1 = len(v1);
len2 = len(v2);
for i in range(0, max(len(v1), len(v2))):
if i >= len1:
if int(v2[i]) > 0:
return -1
continue
if i >= len2:
if int(v1[i]) > 0:
return 1
continue
if int(v1[i]) > int(v2[i]):
return 1
if int(v1[i]) < int(v2[i]):
return -1
return 0