22. 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_reg=0;
    for(int i =0;i<31;i++){
        if(!(i&1)){
            final_reg |= ((reg&1)<<(i>>1));
        }
        reg = reg >> 1;
    }
    return final_reg;
}

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