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

#define SIZE 1000
int search0(const unsigned char * t,int start,int end)
{
  int i;
  for (i=start; i<end; i++){
    if (t[i]=="0"){
      return 1;
    }
  }
  return 0;
}

int main(int argc , char * argv[])
{
	unsigned char arr[SIZE];
	int i;

	srandom(time(NULL));

	for (i = 0; i < SIZE; i++)
		arr[i] = (unsigned char) (random() % 255) + 1;

	printf("Enter a number between 0 and %d: ", SIZE);
	scanf(" %d", &i);
	if (i >= 0 && i < SIZE) arr[i] = 0;

	if (search0(arr,0,SIZE-1)) 
		printf("Found !\n");
	else 
		printf("Not found !\n");
	return EXIT_SUCCESS;
}