Two Arrays

题意翻译

有 $2$ 个大小为 $n$ 数组 $A,B$。 定义一次操作如下： * 在 $A$ 数组里选择 $k$ 个数，并把它们加 $1$。 * 随意打乱 $A$ 数组。 问：能否在做完 **正好一次** 操作后，把 $A$ 数组变为 $B$。

题目描述

You are given two arrays of integers $ a_1, a_2, \ldots, a_n $ and $ b_1, b_2, \ldots, b_n $ . Let's define a transformation of the array $ a $ : 1. Choose any non-negative integer $ k $ such that $ 0 \le k \le n $ . 2. Choose $ k $ distinct array indices $ 1 \le i_1 < i_2 < \ldots < i_k \le n $ . 3. Add $ 1 $ to each of $ a_{i_1}, a_{i_2}, \ldots, a_{i_k} $ , all other elements of array $ a $ remain unchanged. 4. Permute the elements of array $ a $ in any order. Is it possible to perform some transformation of the array $ a $ exactly once, so that the resulting array is equal to $ b $ ?

输入输出格式

输入格式

The first line contains a single integer $ t $ ( $ 1 \le t \le 100 $ ) — the number of test cases. Descriptions of test cases follow. The first line of each test case contains a single integer $ n $ ( $ 1 \le n \le 100 $ ) — the size of arrays $ a $ and $ b $ . The second line of each test case contains $ n $ integers $ a_1, a_2, \ldots, a_n $ ( $ -100 \le a_i \le 100 $ ). The third line of each test case contains $ n $ integers $ b_1, b_2, \ldots, b_n $ ( $ -100 \le b_i \le 100 $ ).

输出格式

For each test case, print "YES" (without quotes) if it is possible to perform a transformation of the array $ a $ , so that the resulting array is equal to $ b $ . Print "NO" (without quotes) otherwise. You can print each letter in any case (upper or lower).

输入输出样例

输入样例 #1

3
3
-1 1 0
0 0 2
1
0
2
5
1 2 3 4 5
1 2 3 4 5

输出样例 #1

YES
NO
YES

说明

In the first test case, we can make the following transformation: - Choose $ k = 2 $ . - Choose $ i_1 = 1 $ , $ i_2 = 2 $ . - Add $ 1 $ to $ a_1 $ and $ a_2 $ . The resulting array is $ [0, 2, 0] $ . - Swap the elements on the second and third positions. In the second test case there is no suitable transformation. In the third test case we choose $ k = 0 $ and do not change the order of elements.