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
    uint8_t uc_loop,pos;
    uint16_t us_temp;
    for(uc_loop=0;uc_loop<32;uc_loop+=2)
    {
        
        us_temp |= ((reg>>uc_loop)&0x1)<<pos;
        pos++;
    }
    return us_temp;
}

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