CSES - List Removals
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Gửi bài giải
Điểm:
8,50 (OI)
Giới hạn thời gian:
1.0s
Giới hạn bộ nhớ:
512M
Input:
stdin
Output:
stdout
Nguồn bài:
Dạng bài
Ngôn ngữ cho phép
C, C++, Java, Kotlin, Pascal, PyPy, Python, Scratch
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.
Input
- 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.
Output
- Print the elements in the order they are removed.
Constraints
- ~1 \le n \le 2 \cdot 10^5~
- ~1 \le x_i \le 10^9~
- ~1 \le p_i \le n-i+1~
Example Input
5
2 6 1 4 2
3 1 3 1 1
Example Output
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]~, ~[4]~ and ~[]~.
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