Extract Even Bits Only from 32-bit Register

Code

#include <stdio.h>
#include <stdint.h>

uint32_t extract_even_bits(uint32_t reg) {
    uint32_t result = 0;
    int current_bit_position = 0;

    for (int i = 0; i < 32; i += 2) {
        // Extract the even-positioned bit (0, 2, 4, ..., 30)
        // using a mask and right-shifting the register
        uint32_t even_bit = (reg >> i) & 1;

        // Shift the extracted bit to the appropriate position in the result
        result |= (even_bit << current_bit_position);

        current_bit_position++;
    }
    return result;
}

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

Solving Approach