45. Serialized Data Buffer

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

void build_packet(uint8_t command, uint16_t value, uint8_t status, uint32_t checksum) {
    // Your logic to fill buffer
    char *ptrval = (char *)&value;
    char *ptrcksum = (char *)&checksum;
    uint8_t buffer[10]= { 0xA5, command, ptrval[0], ptrval[1], 
    status, ptrcksum[0], ptrcksum[1], ptrcksum[2], ptrcksum[3], 0x5A};
    
    // Then print buffer
    for(int i=0; i<10;i++){
        printf("%u ",buffer[i]);
    } 
}

int main() {
    uint8_t cmd, status;
    uint16_t val;
    uint32_t crc;

    scanf("%hhu %hu %hhu %u", &cmd, &val, &status, &crc);
    build_packet(cmd, val, status, crc);
    return 0;
}