Extract Even Bits Only from 32-bit Register

Code

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

uint32_t extract_even_bits(uint32_t reg) {
    // Your code here
    uint32_t extract =0 ;
    for (uint8_t i = 0 ; i< 16 ; i++)
    {
        extract |=  ((reg >> (i*2)) & 1 ) << i;
    }
    return extract;
}

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

Solving Approach