Length of Last Word
Total Accepted: 74498 Total Submissions: 265241 Difficulty: Easy
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: A word is defined as a character sequence consists of non-space characters only.
For example,
Given s = "Hello World"
,
return 5
.
大清早,先水一题
class Solution { public: int lengthOfLastWord(string s) { int sSize = s.size(); int len = 0,i=sSize-1; while(i>=0 && s[i]==' ') --i; while(i>=0 && s[i--]!=' ') ++len; return len; } };
写者:zengzy
出处: http://www.cnblogs.com/zengzy
标题有【转】字样的文章从别的地方转过来的,否则为个人学习笔记