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4734:F(x)

题目描述
For a decimal number x with n digits (AnAn-1An-2 ... A2A1), we define its weight as F(x) = An * 2n-1 + An-1 * 2n-2 + ... + A2 * 2 + A1 * 1. Now you are given two numbers A and B, please calculate how many numbers are there between 0 and B, inclusive, whose weight is no more than F(A).
输入解释
The first line has a number T (T <= 10000) , indicating the number of test cases.
For each test case, there are two numbers A and B (0 <= A,B < 109)
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 output the answer.
输入样例
3
0 100
1 10
5 100
输出样例
Case #1: 1
Case #2: 2
Case #3: 13
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-4734

最后修改于 2020-10-25T23:16:18+00:00 由爬虫自动更新

共提交 0

通过率 --%
时间上限 内存上限
1000/500MS(Java/Others) 32768/32768K(Java/Others)