22. Extract Even Bits Only from 32-bit Register

#include <stdio.h>
#include <stdint.h>

uint32_t extract_even_bits(uint32_t reg) {
    uint32_t result = 0;
    uint32_t out_pos = 0;

    for( int i=0;i<32;i+=2){
       if ((reg >> i) & 1 ){

        result |= (1U<< out_pos);

    }

    out_pos++;

}
  return result;
}

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