24. Data Transmission

#include <stdio.h>
#include <stdint.h>
union end{
    uint32_t num;
    uint8_t a[4];
};
void convert_to_big_endian(uint32_t value, uint8_t arr[4]) {
    // Your code here
    end e;
    e.num=value;
    for(int i=0;i<4;i++){
        arr[i]=e.a[3-i];
    }
}

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;
}