Bit Spreading Interleave Bits with Zeros

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

#define SET_BIT (r,b) (r |= (1 << b));

uint16_t spread_bits(uint8_t val) {
    // Your logic here
    uint16_t result = 0;
    for(uint8_t i = 0 ; i < 8 ; i++){
        if (val & (1 << i)){
            result |= (1 << 2*i);
        }
    }

    return result;
}

int main() {
    uint8_t val;
    scanf("%hhu", &val);

    uint16_t result = spread_bits(val);
    printf("%u", result);
    return 0;
}