Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    // Your logic here
    uint16_t result = 0x00;
    if (val == 0) return 0;

    int x = 7;
    while(1)
    {
        //scan every bit
        if(val & (1 << x))
        {
            //only even numbers should have input
            result |= (1 << x*2);
        }
        if (x <= 0)
        {
            return result;
            break;
        }
        x--;
    }
}

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

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

Solving Approach