Partition array to K subsets
Hard Accuracy: 22.31% Submissions: 6308 Points: 8

Given an integer array a[] of N elements and an integer K, the task is to check if the array a[] could be divided into K non-empty subsets.

Note: All elements of this array should be part of exactly one partition.


Example 1:

Input: N = 5, a[] = {2,1,4,5,6}
       K = 3
Output: 1
Explanation: we can divide above array 
into 3 parts with equal sum as (2, 4), 
(1, 5), (6)

​Example 2:

Input: N = 5, a[] = {2,1,5,5,6}
       k = 3
Output: 0
Explanation: It is not possible to divide
above array into 3 parts with equal sum.


Your Task:
You don't need to read input or print anything. Your task is to complete the function isKPartitionPossible() which takes the array a[], the size of the array N, and the value of K as inputs and returns true(same as 1) if possible, otherwise false(same as 0).

Expected Time Complexity: O(KN-K).
Expected Auxiliary Space: O(K).

1≤ N,K ≤100
1≤ a[] ≤100

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