uva156

#include<iostream>#include<string>#include<cctype>#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] = towlower(ans[i]);}sort(ans.begin(), ans.end());return ans;}int main() {int n = 0;string s;while (cin>>s){if (s[0] == '#')break;words.push_back(s);string r = repr(s);if (!cnt.count(r))//判断key是否存在cnt[r] = 0;cnt[r]++;//直接用key做下标访问第二个元素}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;}