Bit Spreading Interleave Bits with Zeros

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

#define SET_BIT(r,p) (r |= (1U << p))

uint16_t spread_bits(uint8_t val) {
    // Your logic here
    uint16_t res = 0U;

    for(int i = 0; i<8; i++){
        if(val & (1U << i)){
            SET_BIT(res, 2*i);
        }
    }
    
    return res;
}

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

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