set排序(个人模版)

 1 #include<stdio.h>  
 2 #include<string.h>  
 3 #include<iostream>  
 4 #include<set>  
 5 #include<string>  
 6 using namespace std;  
 7 set<string >s;  
 8 int main()  
 9 {  
10     string a;  
11     while(getline(cin,a))  
12     {  
13         for(int i=0; i<a.size(); i++)  
14         {  
15             string tmp;  
16             if(!isalpha(a[i]))continue;  
17             while(isalpha(a[i]))  
18             {  
19                 if(a[i]>='A'&&a[i]<='Z')  
20                 tmp+=a[i]+32;  
21                 else tmp+=a[i];  
22                 i++;  
23             }  
24             s.insert(tmp);  
25         }  
26     }  
27     for(set<string>::iterator it=s.begin(); it!=s.end(); it++)  
28     {  
29         cout<<*it<<endl;  
30     }  
31 }