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 reg_new=0;
    uint32_t reg_result=0;
    for (int i=0; i<16; i+=1)
    {
        reg_new = ((reg >> (i*2)) & 1);
        reg_result |= (reg_new << i);
    }

    return reg_result;
    
}

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