UVa 814 - The Letter Carrier's Rounds（模拟）

来源：互联网发布：2017网络流行骂人热词编辑：程序博客网时间：2024/05/17 05:05

模拟邮件的发送，把每一个地址保存下来，然后在搜索能否找到匹配的地址。

#include <iostream>#include <cstdio>#include <string>#include <set>#include <map>#include <vector>using namespace std;void parse_address(string const s, string& user, string& mta) {    int t = s.find('@');    user = s.substr(0, t);    mta = s.substr(t + 1);}int main() {#ifndef ONLINE_JUDGE    freopen("test", "r", stdin);#endif // ONLINE_JUDGE    int k;    string s, t, user1, user2, mta1, mta2;    set<string> addr;    while(cin >> s&& s[0] != '*') {        cin >> t >> k;        while(k--) {cin >> s; addr.insert(s + '@' + t);}    }    while(cin >> s&& s[0] != '*') {        parse_address(s, user1, mta1);        vector<string> mta;        map<string, vector<string> > dest;        set<string> vis;        while(cin >> t&& t[0] != '*') {            if(vis.count(t)) continue;            vis.insert(t);            parse_address(t, user2, mta2);            if(!dest.count(mta2)) {mta.push_back(mta2); dest[mta2] = vector<string>();}            dest[mta2].push_back(t);        }        getline(cin, t);        string data;        while(getline(cin, t)&& t[0] != '*') data += "     " + t + "\n";        for(int i = 0; i < mta.size(); i++) {            mta2 = mta[i];            vector<string> users = dest[mta2];            cout << "Connection between " << mta1 << " and " << mta2 << "\n";            cout << "     HELO "<< mta1 << "\n";            cout << "     250\n";            cout << "     MAIL FROM:<" << user1 << "@" << mta1 << ">\n";            cout << "     250\n";            bool ok = false;            for(int i = 0; i < users.size(); i++) {                cout << "     RCPT TO:<" << users[i] << ">\n";                if(addr.count(users[i])) {ok = true; cout << "     250\n"; }                else cout << "     550\n";            }            if(ok) {                cout << "     DATA\n     354\n";                cout << data;                cout << "     .\n" << "     250\n";            }            cout << "     QUIT\n     221\n";        }    }    return 0;}

0 0