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
    int new_value;
    for (int i = 0; i < 31; i+=2) {
       if (reg & (1 << i)) {
            new_value |= (1 << (i / 2));
        }
    }
    return new_value;
}

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

Solving Approach