ZOJ Problem Set - 1243 URLs

这道题思路容易乱。注意看题。

#include <iostream>
#include <cstdio>
#include <cstring>
using namespace std;
int main()
{
    //freopen("a.txt","r",stdin);
    int cas,cnt,i,len;
    string str;
    cin>>cas;
    cnt = 0;
    while(cnt < cas)
    {
        cin>>str;
        cout<<"URL #"<<++cnt<<endl;
        len = str.size();
        cout<<"Protocol = ";
        if(str[0] == 'f') cout<<"ftp"<<endl;
        else if(str[0] == 'h') cout<<"http"<<endl;
        else cout<<"gopher"<<endl;
        cout<<"Host     = ";
        for(i = 2;i < len;i ++)
        if(str[i]=='/'&&str[i-1] == '/') break;
        i++;
        while(i < len)
        {
            if(str[i] == '/') break;
            if(str[i] == ':') break;
            cout<<str[i ++];
        }
        cout<<endl;
        if(i == len){
        cout<<"Port     = <default>"<<endl;
        cout<<"Path     = <default>"<<endl;
        }
        else
        {
            if(str[i] == ':') {
                cout<<"Port     = ";
                i++;
            while(i < len)
            {
                if(str[i] == '/') break;
                cout<<str[i ++];
            }
            cout<<endl;
            if(i < len){
                    i++;
                    cout<<"Path     = ";
            while(i < len) cout<<str[i ++];
            cout<<endl;
                }
                else
                cout<<"Path     = <default>"<<endl;

            }

            else {cout<<"Port     = <default>"<<endl;
                if(i < len){
                    i++;
                    cout<<"Path     = ";
            while(i < len) cout<<str[i ++];
            cout<<endl;
                }
                else
                cout<<"Path     = <default>"<<endl;
            }
        }
        cout<<endl;
    }
}