java – Minimum number of swaps required to bring the queue to its final state, not exceeding 2 swaps per element

Scenario or problem definition:
It is New Year and everyone is ready for the roller coaster ride in Wonderland! There are a number of people in the queue, and each person carries a sticker indicating their original position in the queue. The starting positions are increased from 1 in front of the line to n behind the line by 1.

Any person in the queue can bribe the person directly in front of them to swap positions. When two people change positions, they still wear the same sticker that marks their original positions in a line. One person can bribe at most two others. For example, if n = 8 and person bribe 5 person 4, the queue looks like this: 1,2,3,5,4,6,7,8.

Fascinated by this chaotic queue, you need to know the minimum number of bribes that have taken place to bring the queue to its current state!

operation manual
Complete the minimumBribes function in the editor below. An integer must be issued indicating the minimum number of required bribes. If the line configuration is not possible, it is too chaotic.

minimumBribes has the following parameters:

q: an array of integers

input format
The first line contains an integer, the number of test cases.

Each of the next pairs of lines is as follows: – The first line contains an integer, the number of people in the queue. The second line contains space-separated integers describing the final state of the queue.

output format
Issue an integer that specifies the minimum number of bricks required to bring the queue to its final state. Too messy if the condition is invalid, d. H. If a person must have bribed more than persons.

Sample Input

2
8
5 1 2 3 7 8 6 4
8
1 2 5 3 7 8 6 4

example output

Too chaotic
7

Basically, I'm trying to create a method that will accept the values โ€‹โ€‹of the queue in this (final) state and return the number of bricks needed to get to the final state, starting with 1,2,3,4 , 5, … Indicate if the number of bribes per person in the queue is not more than 2. Otherwise "too messy".

The code that fails in some cases using Java streams is as follows. I want to know why I can not achieve the output with Java streams.

static void minimumBribes(int() q) {

        AtomicInteger bribeCount = new AtomicInteger(0);
        AtomicReference chaoticString = new AtomicReference();

        IntStream.rangeClosed(1, q.length).forEach(i -> {
            if (q(i - 1) > i) {
                if (q(i - 1) - i > 2) {
                    chaoticString.set("Too chaotic");
                } else {
                    bribeCount.addAndGet(q(i - 1) - i);
                }
            }
        });

        if (chaoticString.get() == "Too chaotic")
            System.out.print(chaoticString.get());
        else
            System.out.print(bribeCount.get());

    }

The code passed without using Java streams is given below:

static void minimumBribes(int() q) {

        for (int i = 0; i < q.length; i++) {
            if (q(i) - (i + 1) > 2) {
                System.out.println("Too chaotic");
                return;
            }
        }

        int bribe = 0;
        for (int i = 0; i < q.length; i++) {
            for (int j = i + 1; j < q.length; j++) {
                if(q(i) > q(j)) {
                    q(j) = q(i) + q(j);
                    q(i) = q(j) - q(i);
                    q(j) = q(j) - q(i);
                    bribe++;
                }
            }
        }
        System.out.println(bribe);
    }

**Below is the complete code except for the method:**
public class MaximumTwoBribesAllowedForMovingForwardInQueue {

//Method that needs to be filled in
    static void minimumBribes(int() q) {

    }

    private static final Scanner scanner = new Scanner(System.in);

    public static void main(String() args) {
        int t = scanner.nextInt();
        scanner.skip("(rn|(nru2028u2029u0085))?");

        for (int tItr = 0; tItr < t; tItr++) {
            int n = scanner.nextInt();
            scanner.skip("(rn|(nru2028u2029u0085))?");

            int() q = new int(n);

            String() qItems = scanner.nextLine().split(" ");
            scanner.skip("(rn|(nru2028u2029u0085))?");

            for (int i = 0; i < n; i++) {
                int qItem = Integer.parseInt(qItems(i));
                q(i) = qItem;
            }
            minimumBribes(q);
        }
        scanner.close();
    }
}

Can you please help us to recommend changes to achieve this with Java streams?

Example input:

2
8
5 1 2 3 7 8 6 4
8
1 2 5 3 7 8 6 4

Expected correct issue:
Too chaotic
7

Actual wrong issue:
Too chaotic
6

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