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 reg ;
    uint16_t bit ;
    for(uint8_t i = 0; i < 16 ; i++)
    {
        if( i % 2 == 0)
        {
            bit = (val >> (i/2)) &1;
            bit = bit << i;
            reg |= bit ;
        }
        else 
        {
            uint16_t temp = 1;
            temp = temp << i;
            reg &= (~temp);
        }
    }
    return reg;
}

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

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

Solving Approach