Remaining People in Queue

You are given a queue of n people. Each person has a certain patience level, represented by an integer. There are also m time slots during which a service is provided. At each time slot:

• The current time moves forward to the slot time.
• For every minute that passes until this slot, each person in the queue loses 1 unit of patience. A person leaves the queue if their patience drops to 0 or below.
• If there is still someone in the queue exactly at the opening of the slot, the person at the front is served and removed from the queue.

Formally, if a person with patience p waits for t minutes, they will leave if \(p - t \le 0\). Your task is to determine the number of people remaining in the queue after all slot openings have been processed.

inputFormat

The input is given via stdin and consists of:

1. An integer n representing the number of people in the queue.
2. A line containing n space-separated integers representing the patience levels of these people.
3. An integer m representing the number of time slots.
4. A line containing m space-separated integers indicating the times at which the slots open.

outputFormat

Output a single integer to stdout — the number of people remaining in the queue after all time slots have been processed.

4
5 3 6 2
5
1 2 4 5 6

0