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K Subarray Sum
Easy Accuracy: 66.69% Submissions: 1054 Points: 2

Given an integer array arr of size N and two integers K and M, the task is to find M largest sums of K sized subarrays.

Input:
1. The first line of the input contains a single integer T denoting the number of test cases. The description of T test cases follows.
2. The first line of each test case contains three integers N, K, and M.
3. The next line contains N space-separated integers.

Output: For each test case, print M space-separated integers (Print the sums from the maximum to minimum)

Constraints:
1. 1 <= T <= 100

2. 1 <= K <= N <= 104
3. 1 <= M <= N - K + 1
4. 1 <= arr[i] <= 105

Example:
Input:

2
5 2 3
10 11 10 11 12
5 5 1
1 2 3 4 5

Output:
23 21 21
15

Explanation:
Test Case 1:
2 sized subarray sum are {21, 21, 21, 21, 23}, We need to print 3 largest sums from maximum to minimum