A12712 | Subarray Sorting
时间限制1s
内存限制256MB
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题目描述
You are given an array $a_1, a_2, \dots, a_n$ and an array $b_1, b_2, \dots, b_n$ .
For one operation you can sort in non-decreasing order any subarray $a[l \dots r]$ of the array $a$ .
For example, if $a = [4, 2, 2, 1, 3, 1]$ and you choose subbarray $a[2 \dots 5]$ , then the array turns into $[4, 1, 2, 2, 3, 1]$ .
You are asked to determine whether it is possible to obtain the array $b$ by applying this operation any number of times (possibly zero) to the array $a$ .
For one operation you can sort in non-decreasing order any subarray $a[l \dots r]$ of the array $a$ .
For example, if $a = [4, 2, 2, 1, 3, 1]$ and you choose subbarray $a[2 \dots 5]$ , then the array turns into $[4, 1, 2, 2, 3, 1]$ .
You are asked to determine whether it is possible to obtain the array $b$ by applying this operation any number of times (possibly zero) to the array $a$ .
输入格式
The first line contains one integer $t$ ( $1 \le t \le 3 \cdot 10^5$ ) — the number of queries.
The first line of each query contains one integer $n$ ( $1 \le n \le 3 \cdot 10^5$ ).
The second line of each query contains $n$ integers $a_1, a_2, \dots, a_n$ ( $1 \le a_i \le n$ ).
The third line of each query contains $n$ integers $b_1, b_2, \dots, b_n$ ( $1 \le b_i \le n$ ).
It is guaranteed that $\sum n \le 3 \cdot 10^5$ over all queries in a test.
The first line of each query contains one integer $n$ ( $1 \le n \le 3 \cdot 10^5$ ).
The second line of each query contains $n$ integers $a_1, a_2, \dots, a_n$ ( $1 \le a_i \le n$ ).
The third line of each query contains $n$ integers $b_1, b_2, \dots, b_n$ ( $1 \le b_i \le n$ ).
It is guaranteed that $\sum n \le 3 \cdot 10^5$ over all queries in a test.
输出格式
For each query print YES (in any letter case) if it is possible to obtain an array $b$ and NO (in any letter case) otherwise.
输入输出样例
输入 #1
4 7 1 7 1 4 4 5 6 1 1 4 4 5 7 6 5 1 1 3 3 5 1 1 3 3 5 2 1 1 1 2 3 1 2 3 3 2 1
输出 #1
YES YES NO NO
In first test case the can sort subarray $a_1 \dots a_5$ , then $a$ will turn into $[1, 1, 4, 4, 7, 5, 6]$ , and then sort subarray $a_5 \dots a_6$ .
C++ 编辑器
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评测结果:Accepted