| Codeforces Round 1042 (Div. 3) |
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| Finished |
Given two multisets $$$S$$$ and $$$T$$$ of size $$$n$$$ and a positive integer $$$k$$$, you may perform the following operations any number (including zero) of times on $$$S$$$:
Determine if it is possible to make $$$S$$$ equal to $$$T$$$. Two multisets $$$S$$$ and $$$T$$$ are equal if every element appears the same number of times in $$$S$$$ and $$$T$$$.
Each test contains multiple test cases. The first line contains an integer $$$t$$$ ($$$1 \le t \le 10^4$$$) — the number of test cases. The description of the test cases follows.
The first line contains two integers $$$n$$$ and $$$k$$$ ($$$1 \le n \le 2 \cdot 10^5$$$, $$$ 1 \le k \le 10^9$$$) — the size of $$$S$$$ and the constant, respectively.
The second line contains $$$n$$$ integers $$$S_1,S_2,\ldots,S_n$$$ ($$$0 \le S_i \le 10^9$$$) — the elements in $$$S$$$.
The third line contains $$$n$$$ integers $$$T_1,T_2,\ldots,T_n$$$ ($$$0 \le T_i \le 10^9$$$) — the elements in $$$T$$$.
It is guaranteed that the sum of $$$n$$$ over all test cases does not exceed $$$2 \cdot 10^5$$$.
For each test case, output "YES" if it is possible to make $$$S$$$ equal to $$$T$$$, and "NO" otherwise.
You can output the answer in any case (upper or lower). For example, the strings "yEs", "yes", "Yes", and "YES" will be recognized as positive responses.
51 3121 84123 56 2 98 4 112 72 82 93 20 1 01 0 1
YES YES YES NO NO
In the first test case, we can remove one occurrence of $$$1$$$ from $$$S$$$ and insert $$$|1-k|=|1-3|=2$$$ into $$$S$$$, making $$$S$$$ equal to $$$T$$$.
In the second test case, we can remove one occurrence of $$$4$$$ from $$$S$$$ and insert $$$4+k=4+8=12$$$ into $$$S$$$, making $$$S$$$ equal to $$$T$$$.
In the last test case, we can show that it is impossible to make $$$S$$$ equal to $$$T$$$.
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