24. Data Transmission

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

#define BYTE_MASK 0xFF


void convert_to_big_endian(uint32_t value, uint8_t arr[4]) {

    int i = 0;
    int j = 24;

    while ((i < 4) && (j >= 0)){

        arr[i] = (BYTE_MASK & (value >> j));

        i++;
        j -= 8;
    }
    
}

int main() {
    uint32_t value;
    uint8_t arr[4];
    scanf("%u", &value);
    convert_to_big_endian(value, arr);
    for (int i = 0; i < 4; i++) {
        printf("%u", arr[i]);
        if(i<3){
            printf(" ");
        }
    }
    return 0;
}