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 even_bits = 0;
	for (uint8_t i = 0; i < 16; i++)
	{
		/* code */
		uint32_t ebits = (reg >> (2*i)) & 1;
		even_bits |= (ebits << i);
	}

    return even_bits;
}

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