UVa 10815 - Andy's First Dictionary

过了一中午后自己敲的，很简单，练习使用set。

#include<iostream>#include<set>#include<string>#include<sstream>using namespace std;set<string> dict;string duf;int main() {    string s, ss;    while(cin >> s) {        for(int i = 0; i < s.size(); i++)            if(isalpha(s[i])) s[i] = tolower(s[i]);            else s[i] = ' ';        stringstream ss(s);        while(ss >> duf)            dict.insert(duf);    }    for(set<string> :: iterator  it = dict.begin(); it != dict.end(); it++)        cout << * it << endl;}