Medium

Quiz

#165 Compare Version Numbers

APPROACH

Compare two version strings version1 and version2. Each is a sequence of integer revisions separated by dots '.'; leading zeros within each revision are ignored.

Compare revision values left to right. Treat any missing revision as 0.

Return the following:

- -1 if version1 < version2.

- 1 if version1 > version2.

- 0 if they are equal.

1 of 4

1:00

What is the optimal approach for this problem?