Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    // Your logic here
    uint8_t x;
    uint16_t r;
    r=0;
    int pos=0;
    while((val)!=0){
       if(pos%2==0){
        x=val&1;
        r|=(x<<pos);
        val=val>>1;
       }

       pos++;
       
    }
    
    return r;
}

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

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

Solving Approach