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 compressedResult = 0;

    for(uint8_t i = 0; i < 16; i++){
        if (reg & (1U << (i*2))) compressedResult |= (1U << i);
    }
    return (compressedResult);
}

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