#include <iostream>
#include <string>

unsigned int createBitmask(const std::string& word) {
    unsigned int mask = 0;
    for (char c : word) {
        if (c >= 'a' && c <= 'z') {
            mask |= (1 << (c - 'a'));
        }
    }
    return mask;
}

void printBitmask(unsigned int mask) {
    for (int i = 25; i >= 0; i--) {
        std::cout << ((mask & (1 << i)) ? '1' : '0');
    }
    std::cout << std::endl;
}

int main() {
    std::string word = "abcdefz";
    unsigned int mask = createBitmask(word);
    
    std::cout << "Bitmask for \"" << word << "\": ";
    printBitmask(mask);
    
    return 0;
}

#include <iostream>
#include <string>

bool haveCommonCharacters(const std::string& word1, const std::string& word2) {
    unsigned int mask1 = createBitmask(word1);
    unsigned int mask2 = createBitmask(word2);
    
    return (mask1 & mask2) > 0;
}

int main() {
    std::string word1 = "hello";
    std::string word2 = "world";
    std::string word3 = "xyz";
    
    std::cout << "Bitmask for \"" << word1 << "\": ";
    printBitmask(createBitmask(word1));
    std::cout << "Bitmask for \"" << word2 << "\": ";
    printBitmask(createBitmask(word2));
    std::cout << "Bitmask for \"" << word3 << "\": ";
    printBitmask(createBitmask(word3));
    
    std::cout << "\"" << word1 << "\" and \"" << word2 << "\" have common characters: " 
              << (haveCommonCharacters(word1, word2) ? "Yes" : "No") << std::endl;
    std::cout << "\"" << word1 << "\" and \"" << word3 << "\" have common characters: " 
              << (haveCommonCharacters(word1, word3) ? "Yes" : "No") << std::endl;
    
    return 0;
}