Andy's First Dictionary UVA

汝佳的做法

#include <iostream>
using namespace std;
#include<string.h>
#include<string>
#include<set>
#include<sstream>
#include<stdio.h>
#include<queue>
#include<math.h>
#include<algorithm>
set<string> TM;
int main()
{
    string a,b;
    while(cin>>a)
    {
        for(int i=0;i<a.length();i++)
        {
            if(isalpha(a[i]))
                a[i]=tolower(a[i]);
            else
                a[i]=' ';
        }
        stringstream ss(a);
        while(ss>>b)
            TM.insert(b);
    }
    for(set<string>::iterator it=TM.begin();it!=TM.end();++it)
        cout<<*it<<"
";
    return 0;
}