58. Length of Last Word

问题描述

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.

代码

class Solution {
public:
    int lengthOfLastWord(string s) {
        int count=0;
        int lastWordCount = count;
        for(int i=0;i<s.length();i++) {
        	if(s[i]==' ') {
	        	count=0;
	        } else if(s[i]!=' '){
        		count++;
        		lastWordCount = count;
        	}
        }
        return lastWordCount;
    }
};