Bit Spreading Interleave Bits with Zeros

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

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

    for(int i=0; i<8; i++)
    {
        uint16_t mask = ((val & (1<<(7-i)))>>(7-i));
        res |= (mask << (14-2*i));
    }

    return res;
}

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

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