[A] XorSum
- 时间限制: 2000 ms 内存限制: 65535 K
- 问题描述
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You are Given n(1 <= n <= 100) integers (each number no more than 100 and no less than 0), now you must choose m numbers and the xor value is maximum.
- 输入
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Input starts with an integer T denoting the number of test case.
For each test case, first line contains n and m, the second line contains n integers. - 输出
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For each test case, firstly print "Case X: " where X is the case number and then print the maximum xor value.
- 样例输入
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2 4 1 1 2 3 4 3 3 1 1 1
- 样例输出
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4 1
- 提示
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无
- 来源
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Alex@NBUT
- 操作
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