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 res =0;
    int n=0;
    for(int i=0; i<32; i+=2)
    {
        
        if((reg >>i) &1)
        {
            res |= (1 << n);
            n++;
        }
    }
    return res;
}

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

Solving Approach