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   int[] findLargest_SecondLargest(int[] arr) {
        
        int largest = Integer.MIN_VALUE;
        int secondLargest = Integer.MIN_VALUE;
        
        // Single pass through the remaining elements
        for (int i = 0; i < arr.length; i++) {
            if (arr[i] > largest) {
                // Current element becomes largest
                // Previous largest becomes second largest
                secondLargest = largest;
                largest = arr[i];
            } else if (arr[i] > secondLargest && arr[i] < largest) {
                // Current element becomes second largest
                secondLargest = arr[i];
            }
        }
        
        return new int[]{largest, secondLargest};
    }