LeetCode 题解之Goat Latin

1、问题描述

2、问题分析

将句子拆分成单词，然后放入vector中，对每一个单词做改变，最后连成句子返回。

3、代码

 string toGoatLatin(string S) {
         vector<string> words;
         for(string::iterator it = S.begin() ; it != S.end(); ++it ){
             string::iterator it_i = it ;
             while( it_i != S.end() && isalpha( *it_i) ){
                 ++it_i ;
             }
             string word(it,it_i);
             words.push_back( word );
             if( it_i != S.end() ){
                 it = it_i;
             }else{
                 it = it_i - ;
             }
         }

         string result ;
         string a = "a";
         set<string> vowels{"a","e","i","o","u","A","E","I","O","U"};
         for( auto &s : words ){
             if( vowels.find( s.substr(,) ) != vowels.end() ){
                 s += "ma";
             }else{
                 s += s[];
                 s.erase( s.begin() );
                 s += "ma";
             }
             s += a;
             a += "a";
             result += s += " ";
         }

         result.erase( result.end() - );
         return result ;

     }