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 even_bits = 0 ;
    for( int i = 0 ; i < 32 ; i+=2 )
    {
        even_bits |= ((reg >> i) & 1U) << (i/2);
    }
    return even_bits;
    
}

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