Decode Status Register into Human-Readable Flags

#include <stdio.h>
#include <stdint.h>

void decode_status(uint8_t status_reg) {
    // Your logic here
    const char *FLAG_STR[] = {
        [0] = "Power On",
        [1] = "Error",
        [2] = "Tx Ready",
        [3] = "Rx Ready",
        [4] = "Overheat",
        [5] = "Undervoltage",
        [6] = "Timeout",
        [7] = "Reserved"
    };

    for (int i = 0; i < 8; i++) {
        if (status_reg & (1 << i)) {
            printf("%s\n", FLAG_STR[i]);
        }
    }
}

int main() {
    uint8_t reg;
    scanf("%hhu", &reg);
    decode_status(reg);
    return 0;
}

Solving Approach