Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val)
{
    uint16_t x = 0;

    for (int i = 7; i >= 0; i--)
    {
        uint16_t bit = (val >> i) & 1;
        x |= bit << (i * 2);
    }

    return x;
}

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

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

Solving Approach