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68 lines
1.8 KiB
C++
68 lines
1.8 KiB
C++
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#include <bits/stdc++.h>
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using namespace std;
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int n;
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string op, ad;
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map<string, long long> server;
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bool check(string s) {
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long long cnt1 = 0, cnt2 = 0, now = 0, flag = 0;
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for (int i = 0; i < s.size(); i++) {
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if (s[i] == '.') {
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cnt1++;
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if (cnt2) return 0;
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if (i == 0 || s[i - 1] == '.') return false;
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if (cnt1 > 3) return false;
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if (now < 0 || now > 255) return false;
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flag = 0;
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now = 0;
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continue;
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}
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if (s[i] == ':') {
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cnt2++;
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if (i == s.size() - 1) return false;
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if (cnt2 > 1) return false;
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if (i == 0 || s[i - 1] == ':') return false;
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if (now < 0 || now > 255) return false;
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flag = 0;
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now = 0;
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continue;
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}
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if (s[i] < '0' || s[i] > '9') return false;
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if (s[i] == '0' && flag == 0) flag = 1;
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if (s[i] != '0' && flag == 1) return 0;
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if (s[i] != '0') flag = 2;
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now = now * 10 + s[i] - '0';
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}
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if (cnt1 != 3 || cnt2 != 1) return false;
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if (now < 0 || now > 65535) return false;
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return true;
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}
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int main() {
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cin >> n;
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for (int i = 1; i <= n; i++) {
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cin >> op >> ad;
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if (check(ad)) {
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if (op == "Server") {
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if (server.count(ad)) {
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cout << "FAIL" << endl;
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} else {
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server[ad] = i;
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cout << "OK" << endl;
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}
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} else {
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if (server.count(ad)) {
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cout << server[ad] << endl;
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} else {
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cout << "FAIL" << endl;
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}
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}
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} else {
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cout << "ERR" << endl;
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}
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}
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return 0;
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}
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