include

include

include

include

include

using namespace std;

int main() { int n, q; cin >> n >> q; cin.ignore();

map<string, string> attributes;
string line, tag_path = "";

for (int i = 0; i < n; ++i) {
    getline(cin, line);
    // Remove '<' and '>'
    line.erase(remove(line.begin(), line.end(), '>'), line.end());
    line.erase(remove(line.begin(), line.end(), '<'), line.end());

    stringstream ss(line);
    string word;
    ss >> word;

    if (word[0] == '/') {
        // Closing tag
        size_t pos = tag_path.rfind('.');
        if (pos != string::npos) {
            tag_path = tag_path.substr(0, pos);
        } else {
            tag_path = "";
        }
    } else {
        // Opening tag
        string tag_name = word;
        if (!tag_path.empty()) {
            tag_path += "." + tag_name;
        } else {
            tag_path = tag_name;
        }

        // Parse attributes
        string attr_name, eq, attr_value;
        while (ss >> attr_name >> eq >> attr_value) {
            // Remove quotes from attr_value
            attr_value = attr_value.substr(1, attr_value.length() - 2);
            string key = tag_path + "~" + attr_name;
            attributes[key] = attr_value;
        }
    }
}

for (int i = 0; i < q; ++i) {
    string query;
    getline(cin, query);
    if (attributes.find(query) != attributes.end()) {
        cout << attributes[query] << endl;
    } else {
        cout << "Not Found!" << endl;
    }
}

return 0;

}

Here is Attribute Parser solution in c++ - https://programmingoneonone.com/hackerrank-attribute-parser-solution-in-cpp.html

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The problem said NOTHING about how to handle duplicate attribute names. Stupid hacker rank prompts suck. You're supposed to fail if they reuse an attribute name FYI.