#include <stdio.h>
#include <string.h>

int main(void) {
    printf("Result 1: %d\n", is_word_guessed("book", "kob"));
    printf("Result 2: %d\n", is_word_guessed("book", "abcdefghijklkmnopqrstuvxyz"));
    printf("Result 3: %d\n", is_word_guessed("book", "abcob"));
    return 0;
}

int is_word_guessed(const char secret[], const char letters_guessed[]) {
    int secret_length = strlen(secret);
    int letters_guessed_length = strlen(letters_guessed);
    int result = 0;

    for (int i = 0; i < secret_length; i++) {
        for (int j = 0; j < letters_guessed_length; j++) {
            if (secret[i] == letters_guessed[j]) {
                result++;
                break;
            }
        }
    }
    return result == secret_length ? 1 : 0;
}