#P2008H. Sakurako's Test

    ID: 9875 远端评测题 1000ms 256MiB 尝试: 0 已通过: 0 难度: (无) 上传者: 标签>binary searchbrute forcegreedymathnumber theory

Sakurako's Test

Description

Sakurako will soon take a test. The test can be described as an array of integers $n$ and a task on it:

Given an integer $x$, Sakurako can perform the following operation any number of times:

  • Choose an integer $i$ ($1\le i\le n$) such that $a_i\ge x$;
  • Change the value of $a_i$ to $a_i-x$.

Using this operation any number of times, she must find the minimum possible median$^{\text{∗}}$ of the array $a$.

Sakurako knows the array but does not know the integer $x$. Someone let it slip that one of the $q$ values of $x$ will be in the next test, so Sakurako is asking you what the answer is for each such $x$.

$^{\text{∗}}$The median of an array of length $n$ is the element that stands in the middle of the sorted array (at the $\frac{n+2}{2}$-th position for even $n$, and at the $\frac{n+1}{2}$-th for odd)

The first line contains one integer $t$ ($1\le t\le 10^4$)  — the number of test cases.

The first line of each test case contains two integers $n$ and $q$ ($1\le n,q\le 10^5$)  — the number of elements in the array and the number of queries.

The second line of each test case contains $n$ integers $a_1, a_2, \dots, a_n$ ($1\le a_i\le n$)  — the elements of the array.

The following $q$ lines each contain one integer $x$ ($1\le x\le n$).

It is guaranteed that the sum of $n$ across all test cases does not exceed $10^5$. The same guarantee applies to the sum of $q$ across all test cases.

For each test case, output $q$ integers  — the answer for each query.

Input

The first line contains one integer $t$ ($1\le t\le 10^4$)  — the number of test cases.

The first line of each test case contains two integers $n$ and $q$ ($1\le n,q\le 10^5$)  — the number of elements in the array and the number of queries.

The second line of each test case contains $n$ integers $a_1, a_2, \dots, a_n$ ($1\le a_i\le n$)  — the elements of the array.

The following $q$ lines each contain one integer $x$ ($1\le x\le n$).

It is guaranteed that the sum of $n$ across all test cases does not exceed $10^5$. The same guarantee applies to the sum of $q$ across all test cases.

Output

For each test case, output $q$ integers  — the answer for each query.

2
5 5
1 2 3 4 5
1
2
3
4
5
6 3
1 2 6 4 1 3
2
1
5
0 1 1 1 2 
1 0 2