Bit Spreading Interleave Bits with Zeros

Code

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

uint16_t spread_bits(uint8_t val) {
    // Your logic here
    short int num=0,cnt=0;
    for(int i=0;i<16;i++)
    {
        if(i%2==0)
        {
            if(val&(1<<cnt))
            {
                num|=1<<i;
            }
            else
            {
                num&=~(1<<i);
            }
            cnt++;
        }
    }
    return num;
}

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

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

Solving Approach