Register Type Aliases

#include <iostream>
#include <cstdint>
using namespace std;

// Step 1: Create the three type aliases here:
using Reg8  = uint8_t;
using Reg16 = uint16_t;
using Reg32 = uint32_t;

int main() {
    uint64_t raw8, raw16, raw32;
    cin >> raw8 >> raw16 >> raw32;

    // Step 2: Store the values using the alias types:
    Reg8  r8  = static_cast<Reg8>(raw8);
    Reg16 r16 = static_cast<Reg16>(raw16);
    Reg32 r32 = static_cast<Reg32>(raw32);

    // Step 3: Print the formatted output:
    printf("R8=%u R16=%u R32=%u",r8,r16,r32);

    return 0;
}

Solving Approach