Serialized Data Buffer

Code

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

void build_packet(uint8_t command, uint16_t value, uint8_t status, uint32_t checksum) {
    uint8_t buffer[10];

    buffer[0] = 0xA5; 
    buffer[1] = command; 
    buffer[2] = value & 0x00FF; 
    buffer[3] = (value & 0xFF00) >> 8; 
    buffer[4] = status; 
    buffer[5] = checksum & 0x000000FF; 
    buffer[6] = (checksum & 0x0000FF00) >> 8; 
    buffer[7] = (checksum & 0x00FF0000) >> 16; 
    buffer[8] = (checksum & 0xFF000000) >> 24;
    buffer[9] = 0x5A; 

    for (int i=0; i < 10; i++){
        printf("%d ", buffer[i]);
    }

    // Your logic to fill buffer
    // Then print buffer
}

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;
}

Solving Approach