Program in C to demonstrate Bubble Sort in string array

#include <stdio.h>

#include <conio.h>

#include <string.h>

#define MAX 50

#define N 2000

void sort_words(char *x[], int y);

void swap(char **, char **);

int main(void)

{

            char word[MAX];

            char *x[N];

            int n = 0;

            int i = 0;

            for(i = 0; scanf("%s", word) == 1; ++i)

            {

                        if(i >= N)

                                    printf("Limit reached: %d\n", N), exit(1);

           

                        x[i] = calloc(strlen(word)+1, sizeof(char));

                        strcpy(x[i], word);

            }

            n = i;

            sort_words(x, n);

            for(i = 0; i < n; ++i)

                        printf("%s\n", x[i]);

            return(0);

}

void sort_words(char *x[], int y)

{

            int i = 0;

            int j = 0;

            for(i = 0; i < y; ++i)

                        for(j = i + 1; j < y; ++j)

                                    if(strcmp(x[i], x[j]) > 0)

                                                swap(&x[i], &x[j]);

}

void swap(char **p, char **q)

{

            char *tmp;

            tmp = *p;

            *p = *q;

            *q = tmp;

}