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Given an array **arr** of integers of size **N** and an integer **K**, the task is to find the length of the longest subarray with at most **K** even elements

**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 two space-separated integers N and K.

3. The second line contains N space-separated positive integers represents array arr.

**Output:** For each test case, print the length of the longest subarray with at most **K** even elements.

**Constraints:**

1. 1 <= T <= 10

2. 1 <= K <= N <= 100000

3. 0 <= arr[i] <= 100000

**Example:
Input:**

2

4 2

1 2 3 4

4 1

1 2 3 4

**Output:**

4

3

Test case 1: {1, 2, 3, 4} has 2 even elements

Test case 2: {1, 2, 3} has 1 even elements

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Longest Subarray with atmost K Even elements

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