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];

    // Your logic to fill buffer
    // Then print buffer
    buffer[0]=0xA5;
    buffer[1]=command;
    buffer[2]=(value&0xFF);
    buffer[3]=((value>>8)&0xFF);
    buffer[4]=status;
    buffer[5]=(checksum&0xFF);
    buffer[6]=((checksum>>8)&0xFF);
    buffer[7]=((checksum>>16)&0xFF);
    buffer[8]=((checksum>>24)&0xFF);
    buffer[9]=0x5A;
    for(int i=0;i<10;i++)
    {
        printf("%d ",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;
}

Solving Approach