题意

模拟mta发送邮件
模拟的我头皮发麻

记录

有个挺骚的操作记下来了, 有点意思

string text;
while(getline(cin, s) && s[0] != '*')text += "     " + s + "\n";

AC代码

#include <iostream>
#include <cstdio>
#include <string>
#include <vector>
#include <set>
#include <map>using namespace std;set<string> email, wait;
vector<string> vec;
map<string,vector<string> > countnum;void findmta( string &name, string &mta, string s ){int mrk = s.find('@');name = s.substr(0,mrk);mta = s.substr(mrk+1);//cout << name << endl << mta << endl;
}int main()
{string s, s1, s2, ss, name1, mta1, name2, mta2;vector<string>::iterator it;int n;size_t i, j;while( cin >> s ){if( s == "*" )  break;if( s == "MTA" ){cin >> s1;cin >> n;while(n--){s2 = "";cin >> s2;email.insert(s2+"@"+s1);}}}while( cin >> s && s != "*" ){findmta(name1,mta1,s);while( cin >> ss && ss != "*" ){findmta(name2, mta2, ss);if(wait.count(ss)) continue;wait.insert(ss);if( !countnum.count(mta2) ){vec.push_back(mta2);countnum[mta2] = vector<string>();}countnum[mta2].push_back(ss);//countnum[mta2]++;}getchar();string text;while(getline(cin, s) && s[0] != '*')text += "     " + s + "\n";for( i = 0; i < vec.size(); i++ ){vector<string> adds = countnum[vec[i]];cout << "Connection between " << mta1 << " and " << vec[i] << endl;cout << "     HELO " << mta1 << endl << "     250" << endl;cout << "     MAIL FROM:<" << name1 << "@" << mta1 << ">" << endl << "     250" << endl;bool flag = false;for( j = 0; j < adds.size(); j++){cout << "     RCPT TO:<" << adds[j] << ">" << endl;if( email.count(adds[j]) ){flag = true;cout << "     250" << endl;}else    cout << "     550" << endl;}if( flag )cout << "     DATA" << endl << "     354" << endl << text << "     ." << endl << "     250" << endl;cout << "     QUIT" << endl << "     221" << endl;}if( !wait.empty() ) wait.clear();if( !countnum.empty() ) countnum.clear();if( !vec.empty() )  vec.clear();}return 0;
}