Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    uint16_t result=0;
    for (int i=7;i>=0;i--)
    {
        if (val & (1<<i))
        {
            result <<= 2;
            result++;
        }
        else result <<= 2;
    }
    return result;
}

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

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

Solving Approach