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
    uint16_t final_=0;
    for(uint8_t i=0;i<32;i=i+2)
    {
        uint32_t temp=(reg>>i)&1;
        final_|=(temp<<(i/2));
    }
    return final_;
}

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

Solving Approach