HashMap/main.cpp at main · Doughnutik/HashMap · GitHub

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#include "hash_map.h"
//#include "test_map.h"
#include <iostream>
#include <cstdlib>
#include <stdexcept>

int main() {
    std::ios_base::sync_with_stdio(false);
    std::cin.tie(nullptr);

    HashMap<int, int> map;
    using HashMapIterator = HashMap<int, int>::iterator;
    int n;
    std::cin >> n;
    for (int i = 0; i < n; ++i) {
        char code;
        int key;
        std::cin >> code;
        if (code != '!' && code != '<')
            std::cin >> key;
        if (code == '-')
            map.erase(key);
        else if (code == '?') {
            auto it = map.find(key);
            std::cout << (it == map.end() ? -1 : it->second) << "\n";
        } else if (code == '+') {
            int val;
            std::cin >> val;
            map[key] = val;
        } else if (code == '<') {
            for(HashMapIterator it = map.begin(); it != map.end(); ++it)
                std::cout << it->first << " " << it->second << "\n";
        } else if (code == '!')
            map.clear();
    }

    std::cout << map.size() << "\n";
    return 0;
}