DDISH time limit exceeded

general
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1

I have been trying to get this problem accepted but I have failed.
At first I tried it in C but it always showed wrong answer so then I tried it in JAVA then it showed time limit exceeded . If someone could point me in the right direction and tell me how could I improve my code I’d be very greatfull .
**Problem:**DDISH Problem - CodeChef
CODE:

import java.util.*;

import java.lang.*;

import java.io.*;

class Codechef

{

public static void main (String[] args) throws java.lang.Exception

{

	double i,r,l;

	int t,j,d,c,ctr;int a[]=new int[10];//an array for every digit

	

	Scanner input = new Scanner(System.in);

	t=input.nextInt();

	ctr=0;

	while(t!=0)

	{ctr=0; 

	Arrays.fill(a, 0);//initialising the array for each test case

	r=input.nextDouble();

	l=input.nextDouble();

	for(i=r;i<=l;i++)

	{c=(int) i;

	Arrays.fill(a, 0);//initialising the array for every number

	while(c!=0)

	{

	d=c%10;

	a[d]++;

	if(a[d]>1)//if any digit repeats then exit the loop

		break;

	c=c/10;

	}

	if(c!=0)//if all the digits are not traversed then it is not delicious 

		continue;

		ctr++;

	

	}

	System.out.println(ctr);

	t--;}

}

}