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 result = 0;
    uint32_t bytePos = 0;
    for(int i = 0;i<32;i+=2){
        uint32_t extractByte = (reg>>i) & 1;
        // printf("extractByte: %u\t", extractByte);
        result |= (extractByte<<bytePos);
        // printf("result: %u\n", result);
        bytePos++;
    }
    return result;
}

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