Chewbacca And Number

#1

In this question What I am doing is, that I am traversing the number, storing in an array and if the element is greater than 4 then I am replacing it with 9-digit except the most significant number and then computing answer with the array

My all test cases are not getting passed.

Is there any corner cases left which I am missing??

Here is my implemetation of code:

#include<bits/stdc++.h>

using namespace std;

int main()
{

long long int x;
cin>>x;
int a[20];
int temp;
int i=0;
while(x)
{
	temp=x%10;
	a[i++]=temp;
	x/=10;
}

for(int j=0;j<i;j++)
{
	if(a[j]>4&&j!=i-1)
	{
		a[j]=9-a[j];
	}
	
}

int fact=10;
long long ans=0;

for(int j=i-1;j>=0;j--)
{
	ans=fact*ans+a[j];
}
cout<<ans<<"\n";

}

#2

@lakshyatoshniwal what if first position is not 9 your code for input 81 gives 81 while ans is 11
i hope its cleared if yes dont forget to mark the doubt as resolved :smiley: