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4737:A Bit Fun

题目描述
There are n numbers in a array, as a0, a1 ... , an-1, and another number m. We define a function f(i, j) = ai|ai+1|ai+2| ... | aj . Where "|" is the bit-OR operation. (i <= j)
The problem is really simple: please count the number of different pairs of (i, j) where f(i, j) < m.
输入解释
The first line has a number T (T <= 50) , indicating the number of test cases.
For each test case, first line contains two numbers n and m.(1 <= n <= 100000, 1 <= m <= 230) Then n numbers come in the second line which is the array a, where 1 <= ai <= 230.
输出解释
For every case, you should output "Case #t: " at first, without quotes. The t is the case number starting from 1.
Then follows the answer.
输入样例
2
3 6
1 3 5
2 4
5 4
输出样例
Case #1: 4
Case #2: 0
来自杭电HDUOJ的附加信息
Recommend liuyiding

该题目是Virtual Judge题目,来自 杭电HDUOJ

源链接: HDU-4737

最后修改于 2020-10-25T23:16:20+00:00 由爬虫自动更新

共提交 0

通过率 --%
时间上限 内存上限
5000/2500MS(Java/Others) 32768/32768K(Java/Others)