22. Extract Even Bits Only from 32-bit Register

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

uint32_t extract_even_bits(uint32_t reg) {
    // Your code here
    uint32_t result=0;
    uint32_t j=0;
    for(int i=30;i>=0;i-=2){
        j=((reg>>i)&1);
        result=(result<<1)|j;
        
    }
    return result;
}

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