24. Data Transmission

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

void convert_to_big_endian(uint32_t value, uint8_t arr[4]) {
    // Your code here
    uint32_t mask = (1 << 8) - 1;
    arr[3] = value & mask;
    arr[2] = (value & (mask << 8)) >> 8;
    arr[1] = (value & (mask << 16)) >> 16;
    arr[0] = (value & (mask << 24)) >> 24;
    // printf("%u\n", arr[1]);
}

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;
}