Reading from a file and storing in array

Question

I\'ve written the following program to read line by line from a file and store it in the words array. The output should be two random words from the array. But surprisingly

Answer 1

int main(){
 int i = 0;

 int BUFSIZE = 1000;
 char* words[20];
 FILE *fp = fopen("input.txt", "r");
 if (fp == 0){
        fprintf(stderr, "Error while opening");
        exit(1);
 }

 words[i] = malloc(BUFSIZE);
  while (fgets(words[i], BUFSIZE, fp)) {
        i++;
        words[i] = malloc(BUFSIZE);
 } 
 printf("Output: \n");
 srand(time(NULL));
 int j = rand()%i;
 int k = (j+1)%i;
 fflush(stdout);
 printf("%d - %s %d -%s", j, words[j], k, words[k]); 

 int x;
 for(x = 0; x

ps. Check malloc result