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2421:Deciphering Password

题目描述
Xiaoming has just come up with a new way for encryption, by calculating the key from a publicly viewable number in the following way:
Let the public key N = AB, where 1 <= A, B <= 1000000, and a0, a1, a2, …, ak-1 be the factors of N, then the private key M is calculated by summing the cube of number of factors of all ais. For example, if A is 2 and B is 3, then N = AB = 8, a0 = 1, a1 = 2, a2 = 4, a3 = 8, so the value of M is 1 + 8 + 27 + 64 = 100.
However, contrary to what Xiaoming believes, this encryption scheme is extremely vulnerable. Can you write a program to prove it?
输入解释
There are multiple test cases in the input file. Each test case starts with two integers A, and B. (1 <= A, B <= 1000000). Input ends with End-of-File.
Note: There are about 50000 test cases in the input file. Please optimize your algorithm to ensure that it can finish within the given time limit.
输出解释
For each test case, output the value of M (mod 10007) in the format as indicated in the sample output.
输入样例
2 2
1 1
4 7
输出样例
Case 1: 36
Case 2: 1
Case 3: 4393
来自杭电HDUOJ的附加信息
Recommend lcy

该题目是Virtual Judge题目,来自 杭电HDUOJ

源链接: HDU-2421

最后修改于 2020-10-25T22:53:18+00:00 由爬虫自动更新

共提交 0

通过率 --%
时间上限 内存上限
5000/1000MS(Java/Others) 32768/32768K(Java/Others)