Return Subsets Sum to K Problem Statement
Given an integer array 'ARR' of size 'N' and an integer 'K', return all the subsets of 'ARR' which sum to 'K'.
Explanation:
A subset of an array 'ARR' is a tuple that can be obtained from 'ARR' by removing some (possibly all) elements of 'ARR'.
Note:
- The order of subsets is not important.
- The order of elements in a particular subset should be in increasing order of the index.
Input:
The first line of input contains an integer 'N', which denotes the size of the array. The second line contains 'N' single-space separated integers representing the elements of the array. The third line contains a single integer 'K', which denotes the integer to which the subsets should sum to.
Output:
For each test case, print single-space separated integers of a subset of 'ARR' having sum = 'K'. The output of each test case will be printed in a separate line.
Example:
Input:
3
1 2 3
3
Output:
1 2
3
Constraints:
- 1 <= 'N' <= 16
- - (10 ^ 6) <= ARR[i] <= (10 ^ 6)
- - 16 * (10 ^ 6) <= 'K' <= 16 * (10 ^ 6)
- Where 'ARR[i]' denotes the value for 'ith' element of the array 'ARR' and 'K' is the given sum.
Time Limit: 1 sec.

AnswerBot
4mo
Return all subsets of an array that sum to a given integer K.
Use recursion to generate all possible subsets of the array.
Keep track of the current subset and its sum while traversing the array.
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