Lesson_09/Task_2/Task_2.cpp - master - AirLexa/04

Lesson_09/Task_2/Task_2.cpp
79 строк2 KB
AirLexa
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05 мар 2026, 22:18
05 мар 2026, 22:18fe59659
#include <iostream>
#include <windows.h>

class my_num {
    std::string num;

public:
    my_num(std::string n) {
        num = n;
    };
   
    my_num(my_num&& moved) noexcept {   
        num = moved.num;
        moved.num = "";
    }

    my_num& operator =(my_num&& moved) noexcept {
        if (&moved != this) { // избегаем самого в себя
            num = moved.num;
            moved.num = "";
        }
        return *this;
    }

    std::string get_num() {
        return num;
    }

    my_num operator +(const my_num& obj) {
        std::string res = "";
        std::size_t len_1 = num.length() - 1;
        std::size_t len_2 = obj.num.length() - 1;
        std::size_t max_len = len_1 > len_2 ? len_1 : len_2;
        char per = 0, op_1, op_2;

        for (int i = 0; i <= max_len; i++) {
            op_1 = i <= len_1 ? num[len_1 - i] - '0' : 0;
            op_2 = i <= len_2 ? obj.num[len_2 - i] - '0' : 0;
            res = char((op_1 + op_2 + per) % 10 + '0') + res;
            per = (op_1 + op_2 + per) / 10;
        }
        if (per) res = char(per + '0') + res;

        my_num tmp(res);
        return tmp;
    }

    my_num operator *(const int mn) {
        my_num tmp(num);
        for (int i = 0; i < mn - 1; i++)
            tmp = tmp + *this;
        return tmp;
    }
};

std::ostream& operator<<(std::ostream& stream, my_num& obj)
{
    return stream << obj.get_num();
}

int main()
{
    SetConsoleCP(1251);
    SetConsoleOutputCP(1251);

    my_num num_1 = my_num("123456789");
    my_num num_2 = my_num("987654321");
    
    my_num num_3 = num_1 + num_2;
    std::cout << num_1 << " + " << num_2;
    
    num_1 = std::move(num_3);
    std::cout << " = " << num_1 << std::endl;
    
    num_2 = num_1 * 3;
    std::cout << num_1 << " * 3 = " << num_2 << std::endl;

    return 0;
}