различни програми на студент

#include<iostream>
#include<vector>

const int DAYS_COUNT = 7;
#define _pair std::pair<int, std::string>

void getPairs(_pair* myPair, std::vector<std::vector<_pair>>& mainData, std::vector<_pair> data, int daysLeft = DAYS_COUNT) {
    for (int i = 0; i < 6; i++) {
        if (daysLeft - myPair[i].first >= 0) {
            data.push_back(myPair[i]);

            getPairs(myPair,mainData, data, daysLeft - myPair[i].first);

            data.pop_back();
        }
        else {
            int areDaysEnough = 0;

            for (auto x : data)
                areDaysEnough += x.first;

            if (data.size() != 0 && std::count(mainData.begin(), mainData.end(), data) == false && areDaysEnough == DAYS_COUNT) {
                mainData.push_back(data);

                for (auto x : data){
                    std::cout << x.second << std::endl;
                }

                std::cout << std::endl;
            }
        }

    }
}

int main() {
    _pair collection[7] = {
        {2, "diplom"}, {2, "trip"}, {2, "party"}, {1, "exam"}, {1, "nothing"}, {1, "games"} };

    std::vector<std::vector<_pair>> mainData;
    std::vector<_pair> data;

    getPairs(collection, mainData, data);
    std::cout << "Answer: " << mainData.size();
}