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
    uint8_t i=0;
    uint32_t new_reg=0;
    while(reg>0){
        if (reg&0b1){
            new_reg |=(1<<i);
        }
        reg = reg>>(2);
        i++;
    }
    return new_reg;
    
}

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