Read-Only SensorData Reference

#include <iostream>

const int* ptr = nullptr;

struct SensorData {
    int x;
    int y;
    int z;
};

// Write your code here
void print_data(const SensorData* d) {
        
    // d.x = 99;   // must cause compilation error if uncommented
    std::cout << d->x << " " << d->y << " " << d->z << '\n';

    // Store address of x safely
    ptr = &d->x;
}

int main() {
    SensorData data;
    std::cin >> data.x >> data.y >> data.z;

    print_data(&data);

    if (&data.x != ptr) {
        std::cout << "Failed\n";
    }

    return 0;
}

Solving Approach