A12522. Hot is Cold
编程题
普及/提高-
知识点
题目描述
You are given an array of $n$ integers $a_1, a_2, \ldots, a_n$ .
You will perform $q$ operations. In the $i$ -th operation, you have a symbol $s_i$ which is either "<" or ">" and a number $x_i$ .
You make a new array $b$ such that $b_j = -a_j$ if $a_j s_i x_i$ and $b_j = a_j$ otherwise (i.e. if $s_i$ is '>', then all $a_j > x_i$ will be flipped). After doing all these replacements, $a$ is set to be $b$ .
You want to know what your final array looks like after all operations.
You will perform $q$ operations. In the $i$ -th operation, you have a symbol $s_i$ which is either "<" or ">" and a number $x_i$ .
You make a new array $b$ such that $b_j = -a_j$ if $a_j s_i x_i$ and $b_j = a_j$ otherwise (i.e. if $s_i$ is '>', then all $a_j > x_i$ will be flipped). After doing all these replacements, $a$ is set to be $b$ .
You want to know what your final array looks like after all operations.
输入格式
The first line contains two integers $n,q$ ( $1 \leq n,q \leq 10^5$ ) — the number of integers and the number of queries.
The next line contains $n$ integers $a_1, a_2, \ldots, a_n$ ( $-10^5 \leq a_i \leq 10^5$ ) — the numbers.
Each of the next $q$ lines contains a character and an integer $s_i, x_i$ . ( $s_i \in \{<, >\}, -10^5 \leq x_i \leq 10^5$ ) – the queries.
The next line contains $n$ integers $a_1, a_2, \ldots, a_n$ ( $-10^5 \leq a_i \leq 10^5$ ) — the numbers.
Each of the next $q$ lines contains a character and an integer $s_i, x_i$ . ( $s_i \in \{<, >\}, -10^5 \leq x_i \leq 10^5$ ) – the queries.
输出格式
Print $n$ integers $c_1, c_2, \ldots, c_n$ representing the array after all operations.
输入输出样例
输入 #1
11 3 -5 -4 -3 -2 -1 0 1 2 3 4 5 > 2 > -4 < 5
输出 #1
5 4 -3 -2 -1 0 1 2 -3 4 5
输入 #2
5 5 0 1 -2 -1 2 < -2 < -1 < 0 < 1 < 2
输出 #2
0 -1 2 -1 2
说明/提示
In the first example, the array goes through the following changes:
- Initial: $[-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5]$
- $> 2$ : $[-5, -4, -3, -2, -1, 0, 1, 2, -3, -4, -5]$
- $> -4$ : $[-5, -4, 3, 2, 1, 0, -1, -2, 3, -4, -5]$
- $< 5$ : $[5, 4, -3, -2, -1, 0, 1, 2, -3, 4, 5]$
- Initial: $[-5, -4, -3, -2, -1, 0, 1, 2, 3, 4, 5]$
- $> 2$ : $[-5, -4, -3, -2, -1, 0, 1, 2, -3, -4, -5]$
- $> -4$ : $[-5, -4, 3, 2, 1, 0, -1, -2, 3, -4, -5]$
- $< 5$ : $[5, 4, -3, -2, -1, 0, 1, 2, -3, 4, 5]$