22. Extract Even Bits Only from 32-bit Register

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

uint32_t extract_even_bits(uint32_t reg) {
    int value = 0 ; 
    int pos =0 ; 
    for(int i = 0 ; i< 32  ; i+=2){
        int bit = (reg>>i  ) &1 ; 
        value |= bit  << pos++ ; 
    }
    return value;
}

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