1 class Solution 2 { 3     public: 4         vector
     
       uncommonFromSentences(string A, string B) 5         { 6             map
      
        A_store,B_store; 7             string A_words,B_words; 8             for(int i = 0;i < A.size();i ++) 9             {10                 if(A[i]!=' ')11                 {12                     A_words += A[i];13                 }14                 else15                 {16                     A_store[A_words] ++;17                     A_words.clear();18                 }19             }20             A_store[A_words] ++;21             A_words.clear();22             for(int i = 0;i < B.size();i ++)23             {24                 if(B[i]!=' ')25                 {26                     B_words += B[i];27                 }28                 else29                 {30                     B_store[B_words] ++;31                     B_words.clear();32                 }33             }34             B_store[B_words] ++;35             B_words.clear();36             vector
       
         result;37             for(auto i = A_store.begin();i != A_store.end();i ++)38             {39                 string tmp = i->first;40                 int flag = 0;41                 for(auto j = B_store.begin();j != B_store.end();j ++)42                 {43                     if(j->first == tmp)44                         flag = 1;45                 }46                 if(flag==1)47                     continue;48                 else49                 {50                     if(i->second==1)51                         result.push_back(tmp);52                 }53             }54             for(auto i = B_store.begin();i != B_store.end();i ++)55             {56                 string tmp = i->first;57                 int flag = 0;58                 for(auto j = A_store.begin();j != A_store.end();j ++)59                 {60                     if(j->first == tmp)61                         flag = 1;62                 }63                 if(flag==1)64                     continue;65                 else66                 {67                     if(i->second==1)68                         result.push_back(tmp);69                 }70             }71             return result;72         }73 };