POJ-1318（list.sort()输出不为字典序，map才是按字典序排列）

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#include<iostream>#include<string>#include<list>#include<map>#include<utility>#include<algorithm>using namespace std;map<string,int> outputMap;void ergodic(string prefix, string str){if(str==""){outputMap.insert(pair<string,int>(prefix,0));}else{for(int i=0;i<str.length();i++){ergodic(prefix+str[i],str.substr(0,i)+str.substr(i+1,str.length()));}}}int main(int argc, char *argv[]){string str;list<string> inputList;while(cin>>str,str!="XXXXXX"){inputList.push_back(str);}while(cin>>str,str!="XXXXXX"){bool isUnscramble=false;outputMap.clear();ergodic("",str);for(map<string,int>::iterator iter=outputMap.begin();iter!=outputMap.end();++iter){if(find(inputList.begin(),inputList.end(),iter->first)!=inputList.end()){cout<<iter->first<<endl;isUnscramble=true;}}if(!isUnscramble){cout<<"NOT A VALID WORD"<<endl;}cout<<"******"<<endl;}return 0;}

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