mplement this function
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Question
Implement this function
![import java.util.ArrayList;
public interface PermuteAL {
**
* Creates a sequence of numbers.
Thus, sequence(3) generates [0,1,2].
ArrayList<Integer> sequence(int n);
/**
* Permute the elements of the array.
Step 1: if the size of the input array, arr, is 1
來
add it to the result and return it. Done.
* Step 3: for each element i of the list arr, create
a new and smaller list, sm, with that element removed.
To copy a ArrayList, you can pass it into the constructor
of ArrayList. The code below copies arr into sm.
<pre>
ArrayList<Integer> sm = new ArrayList<>(arr);
</pre>
Step 3: call permutation on the smaller list and
store the result in ires.
Step 4: for each list in ires, create a new
list by appending the element i of arr.
Add the return value of append to result.
Step 5: return the result.
* /
ArrayList<ArrayList<Integer>> permutation(ArrayList<Integer> arr);
DELL](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fdc88626a-4317-4667-9c61-42c19d7a8a1b%2Fcc041d27-4957-4402-98c9-64c05b3b6c53%2Fldqnjpf_processed.jpeg&w=3840&q=75)
Transcribed Image Text:import java.util.ArrayList;
public interface PermuteAL {
**
* Creates a sequence of numbers.
Thus, sequence(3) generates [0,1,2].
ArrayList<Integer> sequence(int n);
/**
* Permute the elements of the array.
Step 1: if the size of the input array, arr, is 1
來
add it to the result and return it. Done.
* Step 3: for each element i of the list arr, create
a new and smaller list, sm, with that element removed.
To copy a ArrayList, you can pass it into the constructor
of ArrayList. The code below copies arr into sm.
<pre>
ArrayList<Integer> sm = new ArrayList<>(arr);
</pre>
Step 3: call permutation on the smaller list and
store the result in ires.
Step 4: for each list in ires, create a new
list by appending the element i of arr.
Add the return value of append to result.
Step 5: return the result.
* /
ArrayList<ArrayList<Integer>> permutation(ArrayList<Integer> arr);
DELL
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