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 temp=0;
    uint8_t i=0,j=0;
    for(i=0;i<16;i++)
    {
       j=i/2;
       if(i%2==0)
       {
        if(val & (1<<j))
        {
            temp |= (1<<i);
        }
        else
        {
            temp &= ~(1<<i);
        }
       }
       
    }
    return temp;
}

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

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

Solving Approach