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 new_reg;
    for(int i = 0; i < 16; i++){
        uint32_t val = (reg >> 0) & 0x01;
        reg = reg >> 2;
        new_reg |= ((val & 0x01) << i);
    }
    return new_reg;
}

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