Data Transmission

Code

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

// Input: value = 0x12345678
// 0001 0010 0011 0100 0101 0110 0111 1000
// Output: arr[0] = 0x12, arr[1] = 0x34, arr[2] = 0x56, arr[3] = 0x78

void convert_to_big_endian(uint32_t value, uint8_t arr[4]) {
    arr[0] = (value >> 24) & 0xFF;
    arr[1] = (value >> 16) & 0xFF;
    arr[2] = (value >> 8) & 0xFF;
    arr[3] = value & 0xFF;
}
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("%d " , arr[i]);
    }
    return 0;
}

Solving Approach