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Length of Last Word输出最后单词的字母个数

时间:2014-11-18 23:56:33      阅读:254      评论:0      收藏:0      [点我收藏+]

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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.

 

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 String
 
class Solution {
public:
    int lengthOfLastWord(const char *s) {
        if(s==NULL)
            return 0;
        int len=0;
        const char *start = s;
        while(*s!=\0){
            if(*s== ){
                int le=s-start;
                if(le!=0)
                    len=le;
                start=s+1;
                s++;
            }else
                s++;
        }
        int le=s-start;
        if(le!=0)
            len=le;
        return len;
    }
};

 

Length of Last Word输出最后单词的字母个数

标签:style   blog   http   io   ar   color   sp   for   div   

原文地址:http://www.cnblogs.com/li303491/p/4106676.html

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