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
    uint16_t even_bits = 0;
    uint16_t count = 0;
    for(uint32_t i = 0; i < 32; i = i + 2){
        if(reg & (1 << i)){
            even_bits |= (1 << (count++));
        }
    }
    return even_bits;
}

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