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 result = 0;
    uint8_t out_pos = 0;

    for (uint8_t i=0; i<32; i +=2)
    {
        result |= ((reg & (1<<i)) >> out_pos);
        out_pos ++;
    }
    return result;
}

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