An integer \( N \) (1 ≤ \( N \) ≤ 2 \times 10^5), representing some quantity or size.
An integer \( K \) (1 ≤ \( K \) ≤ 10^9), representing some threshold value.
A list of integers \( A \) of size \( N \), where each integer \( A[i] \) (1 ≤ \( A[i] \) ≤ 10^9).

### Example Input:

```
3 6
7
5
7
```

### Function Signature:
Write a function `f(N, K, A)` that takes in the input.
```python
def f(N: int, K: int, A: List[int]):
    '''
    N: an integer
    K: an integer
    A: a list of integers
    '''
```