result/lab04_LitvinovaAnna/Task2/main.cpp

#include <cstdint>
#include <iostream>
#include <iomanip>

// Âûâîä îäíîãî áàéòà â hex (äâå öèôðû, âåðõíèé ðåãèñòð).
static void print_byte_hex(uint8_t byte) {
    static const char digits[] = "0123456789ABCDEF";
    std::cout << digits[byte >> 4] << digits[byte & 0x0F];
}

// Âûâîä 2-áàéòîâîãî ÷èñëà â hex (ìëàäøèé áàéò ïåðâûì, ÷åðåç ïðîáåë).
static void print_hex_uint16(uint16_t value) {
    const uint8_t* p = reinterpret_cast<const uint8_t*>(&value);
    print_byte_hex(p[0]);
    std::cout << ' ';
    print_byte_hex(p[1]);
}

// Âûâîä îäíîãî áàéòà â äâîè÷íîì âèäå.
static void print_byte_binary(uint8_t byte) {
    for (int bit = 7; bit >= 0; --bit) {
        std::cout << ((byte >> bit) & 1);
    }
}

// Âûâîä 2-áàéòîâîãî ÷èñëà â äâîè÷íîì âèäå (áåç ïðîáåëà ìåæäó áàéòàìè).
static void print_binary_uint16(uint16_t value) {
    const uint8_t* p = reinterpret_cast<const uint8_t*>(&value);
    print_byte_binary(p[0]);
    print_byte_binary(p[1]);
}

int main() {
    uint16_t lhs = 0;
    uint16_t rhs = 0;
    char op = 0;

    if (!(std::cin >> lhs >> op >> rhs)) {
        std::cout << "Îøèáêà ââîäà\n";
        return 1;
    }

    uint16_t result = 0;
    switch (op) {
    case '&': result = lhs & rhs; break;
    case '|': result = lhs | rhs; break;
    case '^': result = lhs ^ rhs; break;
    default:
        std::cout << "Îøèáêà: ïîääåðæèâàþòñÿ òîëüêî &, |, ^\n";
        return 1;
    }

    // Îòðàæàåì èñõîäíîå âûðàæåíèå â äåñÿòè÷íîì âèäå
    std::cout << lhs << ' ' << op << ' ' << rhs << '\n';

    // Hex-ïðåäñòàâëåíèå
    print_hex_uint16(lhs);
    std::cout << ' ' << op << ' ';
    print_hex_uint16(rhs);
    std::cout << " = ";
    print_hex_uint16(result);
    std::cout << '\n';

    // Binary-ïðåäñòàâëåíèå
    print_binary_uint16(lhs);
    std::cout << ' ' << op << '\n';
    print_binary_uint16(rhs);
    std::cout << " =\n";
    print_binary_uint16(result);
    std::cout << '\n';

    return 0;
}