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 extracted_val;
    int val;
    for(int i=0;i<32;i++)
    {
       val= reg & (1<<2*i);
       extracted_val|= (val>>i);
    }
    return extracted_val;
}

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