安迪的第一个字典（UVa10815)

 

　　题目具体描述见：https://uva.onlinejudge.org/index.php?option=com_onlinejudge&Itemid=8&page=show_problem&problem=1756

 

C++11代码如下：

#include<iostream>
#include<set>
#include<string>
#include<sstream>
using namespace std;
set<string> dict;

int main() {
    string s,buf;
    while (cin >> s) {
        for (int i = 0; i < s.length();i++) {
            if (isalpha(s[i])) s[i]=tolower(s[i]);
            else s[i] = ' ';
        }
        stringstream ss(s);
        while(ss >> buf) dict.insert(buf);
    }
    for (set<string>::iterator it = dict.begin(); it != dict.end(); it++) 
        cout << *it << endl;
    return 0;
}