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 retV=0;
    for(uint8_t i=0;i<16;i++)
    {
        if(i%2==0)
        {
            uint8_t bit = ((val>>i/2))&0x01;
            if(bit==1)
            retV |=(1<<i);
        }
        else if(i%2==1)
        {
            retV&=~(1<<i);
        }
        

    }
    
    return retV;
}

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

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

Solving Approach