Decode Status Register into Human-Readable Flags

Use a LUT to store the strings and then check each bit and print.

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

void decode_status(uint8_t status_reg) {
    // Your logic here
    char* message[] = {"Power On", "Error", "Tx Ready", "Rx Ready", "Overheat", "Undervoltage", "Timeout", "Reserved"};
    for(char i = 0; i<8; i++){
        if((status_reg>>i) & 1)
            printf("%s\n", message[i]);
    }
}

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

Solving Approach

Use printf("%s\n", message[i]); for no error/mismatches