- Time limit: 1.00 s
- Memory limit: 512 MB
You are given a list consisting of n integers. Your task is to remove elements from the list at given positions, and report the removed elements.
The first input line has an integer n: the initial size of the list. During the process, the elements are numbered 1,2,\dots,k where k is the current size of the list.
The second line has n integers x_1,x_2,\dots,x_n: the contents of the list.
The last line has n integers p_1,p_2,\dots,p_n: the positions of the elements to be removed.
Print the elements in the order they are removed.
- 1 \le n \le 2 \cdot 10^5
- 1 \le x_i \le 10^9
- 1 \le p_i \le n-i+1
5 2 6 1 4 2 3 1 3 1 1
1 2 2 6 4
Explanation: The contents of the list are [2,6,1,4,2], [2,6,4,2], [6,4,2], [6,4],  and .