Frequency of the Most Frequent Element

The **frequency** of an element is the number of times it occurs in an array. You are given an integer array `nums` and an integer `k`. In one operation, you can choose an index of `nums` and increment the element at that index by `1`. Return _the **maximum possible frequency** of an element after performing **at most** _`k`_ operations_.   **Example 1:** **Input:** nums = [1,2,4], k = 5 **Output:** 3** Explanation:** Increment the first element three times and the second element two times to make nums = [4,4,4]. 4 has a frequency of 3. ``` **Example 2:** **Input:** nums = [1,4,8,13], k = 5 **Output:** 2 **Explanation:** There are multiple optimal solutions: - Increment the first element three times to make nums = [4,4,8,13]. 4 has a frequency of 2. - Increment the second element four times to make nums = [1,8,8,13]. 8 has a frequency of 2. - Increment the third element five times to make nums = [1,4,13,13]. 13 has a frequency of 2. ``` **Example 3:** **Input:** nums = [3,9,6], k = 2 **Output:** 1 ```   **Constraints:** - `1 <= nums.length <= 105` - `1 <= nums[i] <= 105` - `1 <= k <= 105`