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 result = 0;
    int out_pos = 0; // position in compressed result

    for (int i = 0; i < 32; i += 2) {
        uint32_t bit = (reg >> i) & 1U;       // extract bit at position i
        result |= (bit << out_pos);           // place at compressed position
        out_pos++;
    }
    return result;

}

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

Solving Approach

 

 

 

Upvote
Downvote
Loading...

Input

85

Expected Output

15