57 lines
1.4 KiB
C++
57 lines
1.4 KiB
C++
|
#include <iostream>
|
||
|
|
#include <string>
|
||
|
|
#include <sstream>
|
||
|
|
#include <map>
|
||
|
|
#include <cstring>
|
||
|
|
|
||
|
|
using namespace std;
|
||
|
|
|
||
|
|
bool validate_addr(const string &addr) {
|
||
|
|
if (addr.size() > 22) return false;
|
||
|
|
int ip_parts[4];
|
||
|
|
int port;
|
||
|
|
sscanf(addr.c_str(), "%d.%d.%d.%d:%d", &ip_parts[0], &ip_parts[1], &ip_parts[2], &ip_parts[3], &port);
|
||
|
|
char out[35];
|
||
|
|
sprintf(out, "%d.%d.%d.%d:%d", ip_parts[0], ip_parts[1], ip_parts[2], ip_parts[3], port);
|
||
|
|
if (strlen(out) != addr.size()) return false; // Leading 0
|
||
|
|
|
||
|
|
if (port > 65536 || port < 0) return false;
|
||
|
|
|
||
|
|
for (int ip_part: ip_parts) {
|
||
|
|
if (ip_part > 256 || ip_part < 0) return false;
|
||
|
|
}
|
||
|
|
|
||
|
|
return true;
|
||
|
|
}
|
||
|
|
|
||
|
|
int main() {
|
||
|
|
int n;
|
||
|
|
map<string, int> servers;
|
||
|
|
cin >> n;
|
||
|
|
for (int i = 0; i < n; i++) {
|
||
|
|
string mode, t;
|
||
|
|
cin >> mode >> t;
|
||
|
|
|
||
|
|
if (!validate_addr(t)) {
|
||
|
|
cout << "ERR" << endl;
|
||
|
|
continue;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (mode == "Server") {
|
||
|
|
if (servers.find(t) == servers.end()) {
|
||
|
|
// Not found, good to go
|
||
|
|
servers[t] = i + 1;
|
||
|
|
cout << "OK" << endl;
|
||
|
|
} else {
|
||
|
|
cout << "FAIL" << endl;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
if (mode == "Client") {
|
||
|
|
if (servers.find(t) == servers.end()) {
|
||
|
|
cout << "FAIL" << endl;
|
||
|
|
} else {
|
||
|
|
cout << servers[t] << endl;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|
||
|
|
}
|