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

#define MAX_WORDS 10

int comp(const void* word1, const void* word2){
    printf("Comparing: %s %s\n", *(char**)word1, *(char**)word2);
    return strcmp(*(char**)word1, *(char**)word2);
}

int main(){
    char text[1000] = "Java is";
    char key[30] = "Java";
    int cur_words = 0;
    int max_words = MAX_WORDS;
    char** words = malloc(max_words * sizeof(char *));
    char* ptr = strtok(text, " .");
    while(ptr != NULL){
        if(cur_words == max_words){
            max_words *= 2;
            words = realloc(words, max_words * sizeof(char *));
        }
        words[cur_words] = ptr;
        cur_words++;
        ptr = strtok(NULL, " .");
    }
    qsort(words, cur_words - 1, sizeof(char*), comp);
    printf("%d", bsearch(&key, words, cur_words - 1, sizeof(char*), comp) == NULL);
    /*if(ind != NULL)
        printf("exists\n");
    else
        printf("doesn' exist\n");
    */
    return 0;
}