Andy's First Dictionary-UVA 10815

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题目：uva10815

水题，用STL中的set很容易，借用stringstream将字符串转化为一个一个的单词

代码如下：

#include<iostream>#include<set>#include<iterator>#include<string>#include<set>#include<typeinfo>#include<queue>#include<list>#include<algorithm>#include<cstdio>#include<cctype>#include<cstring>#include<map>#include<vector>#include<cstdlib>#include<cmath>#include<stack>#include<sstream>#include<iomanip>const int maxn = 30;using namespace std;set<string> dict;int main(){    string s;    string buf;    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;        ss<<s;        while(ss>>buf)dict.insert(buf);    }     for(set<string>::iterator it =dict.begin();it!=dict.end();it++)            cout<<*it<<endl;    return 0;}

stringstream的用法：

#include<iostream>#include<set>#include<iterator>#include<string>#include<set>#include<typeinfo>#include<queue>#include<list>#include<algorithm>#include<cstdio>#include<cctype>#include<cstring>#include<map>#include<vector>#include<cstdlib>#include<cmath>#include<stack>#include<sstream>#include<iomanip>const int maxn = 30;using namespace std;int main(){    stringstream ss;    string x;    //字符串转化为一个个的单词    {        string s="You are asked to write a program that lists all the different words in the input text.";    ss<<s;    while(ss>>x)        cout<<x<<endl;        ss.clear();    }    //int 转化为string    {         int i=1000;         ss<<i;        ss>>x;        cout<<x<<endl;    }    return 0;}

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