Extract Even Bits Only from 32-bit Register

Code

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

uint32_t extract_even_bits(uint32_t reg) {

    uint16_t result = 0;

    for (int i = 0; i < 16; i++) 
    {
        // Extract bit from even position (0, 2, 4, ..., 30)
        uint16_t bit = (reg >> (2 * i)) & 1;

        // Place it in the result
        result |= (bit << i);
    }

    return result;
}

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

Solving Approach