Subset Sums | Practice | GeeksforGeeks

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Avoid using static/global variables in coding problems as your code is tested against multiple test cases and these tend to retain their previous values.
Passing the Sample/Custom Test cases in coding problems does not guarantee the correctness of code. On submission, your code is tested against multiple test cases consisting of all possible corner cases and stress constraints.

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Suggest Changes in Problem Statement:

<div class="entry-content">
Given a list arr of N integers, print sums of all subsets in it.

Example 1:

<pre>
Input:
N = 2
arr[] = {2, 3}
Output:
0 2 3 5
Explanation:
When no elements is taken then Sum = 0.
When only 2 is taken then Sum = 2.
When only 3 is taken then Sum = 3.
When element 2 and 3 are taken then 
Sum = 2+3 = 5.</pre>

Example 2:

<pre>
Input:
N = 3
arr = {5, 2, 1}
Output:
0 1 2 3 5 6 7 8
</pre>

Your Task:   
You don't need to read input or print anything. Your task is to complete the function subsetSums() which takes a list/vector and an integer N as an input parameter and return the list/vector of all the subset sums.

Expected Time Complexity: O(2N) 
Expected Auxiliary Space: O(2N)

Constraints: 
1 <= N <= 15 
0 <= arr[i] <= 104
</div>

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