cgdong2014的专栏

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 co

Given a sorted integer array without duplicates, return the summary of its ranges. For example, given [0,1,2,4,5,7], return ["0->2","4->5","7"]. Credits: Special thanks to @jianchao.li.fighter fo