22. Extract Even Bits Only from 32-bit Register

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

uint32_t extract_even_bits(uint32_t reg) {
    uint16_t newreg;uint32_t j=0;
    for(int i=0;i<32;i++)
    {
        if(i%2==0)
        {
            newreg|=((reg>>i)&1)<<j++;
        }

    }
    return newreg;
}

int main() {
    uint32_t reg;
    scanf("%u", &reg);
    printf("%u", extract_even_bits(reg));
    return 0;
}