Register Operator Overloading

#include <cstdint>
#include <cstdio>

// Register abstraction (USER MUST MODIFY THIS CLASS ONLY)
class Register32 {
public: 
    explicit Register32(std::uint32_t v=0) : value(v) {}

    Register32& operator |=(std::uint32_t mask) {
        value|= mask; 
        return *this; 
    }

    Register32& operator&=(std::uint32_t mask) {
        value &= mask;
        return *this;
    }

    std::uint32_t get() const {
        return value;
    }
private:
    std::uint32_t value;
};

int main() {
    Register32 reg{0};

    int n;
    std::scanf("%d", &n);

    for (int i = 0; i < n; ++i) {
        char op[6];
        int bit;
        std::scanf("%s %d", op, &bit);

        // MUST REMAIN UNCHANGED
        if (op[0] == 'S') {
            reg |= (1u << bit);
        } else {
            reg &= ~(1u << bit);
        }
    }

    std::printf("reg=%u\n", reg.get());
    return 0;
}