58 lines
1.3 KiB
C++
58 lines
1.3 KiB
C++
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#include <bits/stdc++.h>
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using namespace std;
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int w[5];
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bool check(string addr) {
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memset(w, -1, sizeof w);
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// 使用 stringstream 替代 sscanf
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stringstream ss(addr);
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char dot1, dot2, dot3, colon;
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ss >> w[0] >> dot1 >> w[1] >> dot2 >> w[2] >> dot3 >> w[3] >> colon >> w[4];
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// 验证格式是否正确
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if (dot1 != '.' || dot2 != '.' || dot3 != '.' || colon != ':')
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return false;
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// 验证数值范围
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for (int i = 0; i < 5; i++) {
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if (w[i] < 0)
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return false;
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if (i < 4 && w[i] > 255)
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return false;
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if (i == 4 && w[i] > 65535)
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return false;
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}
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// 验证转换后的字符串是否与原字符串相同
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stringstream ss2;
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ss2 << w[0] << '.' << w[1] << '.' << w[2] << '.' << w[3] << ':' << w[4];
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return ss2.str() == addr;
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}
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int main() {
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int n;
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cin >> n;
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unordered_map<string, int> hash;
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for (int i = 1; i <= n; i++) {
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string type, addr;
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cin >> type >> addr;
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if (type == "Server") {
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if (!check(addr))
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puts("ERR");
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else if (hash.count(addr))
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puts("FAIL");
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else {
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hash[addr] = i;
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puts("OK");
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}
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} else {
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if (!check(addr))
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puts("ERR");
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else if (!hash.count(addr))
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puts("FAIL");
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else
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cout << hash[addr] << endl;
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}
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}
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return 0;
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}
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