02. SoftUni Karaoke

#include <iostream>
#include <sstream>
#include <string>
#include <vector>
#include <set>
#include <map>

using namespace std;

vector<string> string_split(string& str, string sep) {
    vector<string> v;
    while (!str.empty()) {
        size_t index = str.find(sep);
        v.push_back(str.substr(0, index));
        str.erase(0, index + sep.size());
    }
    return v;
}

bool is_find(vector<string>& v, string el) {
    return find(v.begin(), v.end(), el) != v.end();
}

int main() {
    string line;

    getline(cin, line);
    vector<string> participants = string_split(line, ", ");

    getline(cin, line);
    vector<string> songs = string_split(line, ", ");

    map<string, set<string>> info;

    set<int> valueSize;

    getline(cin, line);

    while (line != "dawn") {
        vector<string> tokens = string_split(line, ", ");
        string participant = tokens[0], song = tokens[1], award = tokens[2];

        if (is_find(participants, participant) && is_find(songs, song)) {
            info[participant].insert(award);
            valueSize.insert(info[participant].size());
        }
        getline(cin, line);
    }

    auto it = valueSize.end();

    if (info.size() > 0) {
        while (info.size() != 0) {
            int maxSize = *--it;

            for (auto& i : info) {
                if (i.second.size() == maxSize) {
                    cout << i.first << ": " << i.second.size() << " awards" << endl;
                    for (auto& v : i.second) {
                        cout << "--" << v << endl;
                    }
                    info.erase(i.first);
                    break;
                }
            }
        }
    }
    else {
        cout << "No awards\n";
    }
    return 0;
}