CF1471A.Strange Partition

传统题 时间 2000 ms 内存 256 MiB 4 尝试 1 已通过 1 标签

Strange Partition

You are given an array aa of length nn, and an integer xx. You can perform the following operation as many times as you would like (possibly zero): replace two adjacent elements of the array by their sum. For example, if the initial array was [3,6,9][3, 6, 9], in a single operation one can replace the last two elements by their sum, yielding an array [3,15][3, 15], or replace the first two elements to get an array [9,9][9, 9]. Note that the size of the array decreases after each operation.

The beauty of an array b=[b1,,bk]b=[b_1, \ldots, b_k] is defined as umi=1kbixum_{i=1}^k \left\lceil \frac{b_i}{x} \right\rceil, which means that we divide each element by xx, round it up to the nearest integer, and sum up the resulting values. For example, if x=3x = 3, and the array is [4,11,6][4, 11, 6], the beauty of the array is equal to $\left\lceil \frac{4}{3} \right\rceil + \left\lceil \frac{11}{3} \right\rceil + \left\lceil \frac{6}{3} \right\rceil = 2 + 4 + 2 = 8$.

Please determine the minimum and the maximum beauty you can get by performing some operations on the original array.

Input

The first input line contains a single integer tt — the number of test cases (1t10001 \le t \le 1000).

The first line of each test case contains two integers nn and xx (1n1051 \leq n \leq 10^5, 1x1091 \leq x \leq 10^9).

The next line contains nn integers a1,a2,,ana_1, a_2, \ldots, a_n (1ai1091 \leq a_i \leq 10^9), the elements of the array aa.

It is guaranteed that the sum of values of nn over all test cases does not exceed 10510^5.

Output

For each test case output two integers — the minimal and the maximal possible beauty.

Note

In the first test case the beauty of the array does not change if we perform any operations.

In the second example we can leave the array unchanged to attain the maximum beauty, and to get the minimum beauty one can replace two elements 44 and 1111 with their sum, yielding an array [6,15][6, 15], which has its beauty equal to 77.

Samples

2
3 3
3 6 9
3 3
6 4 11
6 6
7 8

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