24. Data Transmission

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

void convert_to_big_endian(uint32_t val, uint8_t arr[4]) {
    for (int i = 0; i < 4; i++)
    {
        uint32_t byte_mask = 0xFF000000 >> (i * 8);
        uint8_t byte = (val & byte_mask) >> ((3 - i) * 8);
        arr[i] = byte;
    }
}

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;
}