#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<algorithm>
using namespace std;
map<string,int>cnt;
vector<string>words;
string repr(const string &s)
{
string ans=s;
for(int i=0;i<ans.length();i++)
ans[i]=tolower(ans[i]);
sort(ans.begin(),ans.end());
return ans;
}
int main()
{
string s;
while(cin>>s)
{
if(s[0]==‘#‘)
break;
words.push_back(s);
string r=repr(s);
if(!cnt.count(r))
cnt[r]=0;
cnt[r]++;
}
vector<string>ans;
for(int i=0;i<words.size();i++)
if(cnt[repr(words[i])]==1)
ans.push_back(words[i]);
sort(ans.begin(),ans.end());
for(int i=0;i<ans.size();i++)
cout<<ans[i]<<endl;
return 0;
}
原文:https://www.cnblogs.com/ACM-Lxw/p/10927079.html