24. Data Transmission

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

void convert_to_big_endian(uint32_t value, uint8_t arr[4]) {
    uint8_t mask = 0;
    for (int i = 3; i>=0; i--){
        mask = mask | value;
        arr[i] = mask;
        value = value >> 8;
        mask = 0;
        // arr[i] = (reg >> 3-i) & mask;
        // mask = mask << 2;
        // reg = reg << 2;
    }
    return;
}

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;
}