Why my code take infinite inputs

#1
#2

@deepgarg46 Use the original snippet of the code given.

#3

https://ide.codingblocks.com/s/681529 again same problem

#4

@deepgarg46 bench mark your function with this :

public static void func(LinkedList q, int n, int[] arr) throws Exception {
        int ans = 0;
        for (int j = 0; j < n; j++) {
            if (q.getFirst() == arr[j]) {
                ans++;
                q.removeFirst();
            } else {
                while (q.getFirst() != arr[j]) {
                    int var = q.getFirst();
                    q.addLast(var);
                    q.removeFirst();
                    ans++;
                }
                ans++;
                q.removeFirst();
            }

        }
        System.out.println(ans);

    }
#5

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