Problem chewbacca and number

#1

import java.util.*;
public class Main {
public static void main(String args[]) {
Scanner cin = new Scanner(System.in);
int n = cin.nextInt();
int s = countDigit(n), arr[] = new int[s], num = 0;
for(int i = 0;i<arr.length;i++){
arr[arr.length-1-i] = n % 10;
n /= 10;
}
int i = 0;
if(arr[i] == 9){
i++;
}
for(;i<arr.length;i++){
int t = arr[i];
if(9-t<t){
arr[i] = 9 -t;
}
}
for(int k = 0;k<arr.length;k++){
long fact =1;
for (int j=1;j<=k; j++)
{
fact = fact * 10;
}
num =num + ( arr[arr.length-k-1] *(int) fact) ;
}
System.out.print(num);
}
public static int countDigit(int a){
int count = 0;
while(a>0){
count++;
a /= 10;
}
return count;
}
}=====what’s error in the code

#2

values can be larger so try the long

#3

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#4

yes my code is not working right can u please make the code right because i m stuck

#5

pls share cb ide link of ur code