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# At most Two Occurrences!

Problem Description

You are given an integer array A containing N integers.

You can remove atmost one subarray from it such that the remaining elements must occur atmost two times.

Find the minimum size of the subarray you need to remove such that remaining elements must occur for atmost two times.

Problem Constraints

1 <= N <= 105

1 <= A[i] <= 109

Input Format

First and only argument is an integer array A.

Output Format

Return an integer denoting the minimum size of the subarray you need to remove such that remaining elements must occur for atmost two times.

Example Input

Input 1:

``` A = [1, 1, 1, 2, 2, 2]
```

Input 2:

``` A = [1, 1, 2, 2]
```

Example Output

Output 1:

``` 2
```

Output 2:

``` 0
```

Example Explanation

Explanation 1:

``` If we remove the subarray A[2:3] then A = [1, 1, 2, 2] and as you can see count of 1 is atmost 2 and count of 2 is atmost 2
so this will be our optimal answer so length of subrray which needs to be removed = 2
```

Explanation 2:

``` Initially each elements occurs for atmost two times so we do not need to remove any subarray.
Hence we will return 0
```

NOTE: You only need to implement the given function. Do not read input, instead use the arguments to the function. Do not print the output, instead return values as specified. Still have a question? Checkout Sample Codes for more details.
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