Lewisr

摘要： Longest Common Prefix:Write a function to find the longest common prefix string amongst an array of strings. 题意：查找一个字符串数组中的字符串的最长公共子序列。 思路：首先查找字符串数组中，字符串长度最小的字符串的索引，然后在逐位判断。 代码： public String longestC... 阅读全文

摘要： Length of Last Word:Given a string s consists of upper/lower-case alphabets and empty space characters ' ', return the length of last word in the string.If the last word does not exist, return 0. Note... 阅读全文