Deltix Round, Autumn 2021 (open for everyone, rated, Div. 1 + Div. 2)
A
Divide and Multiply
Codeforces
900
原题
←B →
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image

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William has array of $n$ numbers $a_1, a_2, \dots, a_n$. He can perform the following sequence of operations any number of times:

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  1. Pick any two items from array $a_i$ and $a_j$, where $a_i$ must be a multiple of $2$
  2. $a_i = \frac{a_i}{2}$
  3. $a_j = a_j \cdot 2$
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Help William find the maximal sum of array elements, which he can get by performing the sequence of operations described above.

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Input

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Each test contains multiple test cases. The first line contains the number of test cases $t$ ($1 \le t \le 10^4$). Description of the test cases follows.

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The first line of each test case contains an integer $n$ $(1 \le n \le 15)$, the number of elements in William's array.

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The second line contains $n$ integers $a_1, a_2, \dots, a_n$ $(1 \le a_i \lt 16)$, the contents of William's array.

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Output

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For each test case output the maximal sum of array elements after performing an optimal sequence of operations.

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Note

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In the first example test case the optimal sequence would be:

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  1. Pick $i = 2$ and $j = 1$. After performing a sequence of operations $a_2 = \frac{4}{2} = 2$ and $a_1 = 6 \cdot 2 = 12$, making the array look as: [12, 2, 2].
  2. Pick $i = 2$ and $j = 1$. After performing a sequence of operations $a_2 = \frac{2}{2} = 1$ and $a_1 = 12 \cdot 2 = 24$, making the array look as: [24, 1, 2].
  3. Pick $i = 3$ and $j = 1$. After performing a sequence of operations $a_3 = \frac{2}{2} = 1$ and $a_1 = 24 \cdot 2 = 48$, making the array look as: [48, 1, 1].
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The final answer $48 + 1 + 1 = 50$.

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In the third example test case there is no way to change the sum of elements, so the answer is $10$.

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样例

Input #1
5
3
6 4 2
5
1 2 3 4 5
1
10
3
2 3 4
15
8 8 8 8 8 8 8 8 8 8 8 8 8 8 8
Output #1
50
46
10
26
35184372088846
InputCopy OutputCopy
题目信息
题号
1609A
时间限制
1 s
内存限制
256 MB
标签
贪心
模拟
数学
数论

题面与样例版权归 Codeforces 及出题人所有;中文翻译由 AI 生成(CI 管线),如有出入请以原文为准。