Power of CryptographyDescriptionCurrent work in
cryptography involves (among other things) large prime numbers and computing
powers of numbers among t...
分类：
其他好文 时间：
2014-06-04 16:27:41
阅读次数：
248
先上题目：Find NumbersTime Limit: 10000/5000 MS
(Java/Others)Memory Limit: 32768/32768 K (Java/Others)Total Submission(s):
26Accepted Submission(s): 20Spec...
分类：
其他好文 时间：
2014-06-02 17:15:22
阅读次数：
267
问题描述：
Let d(n) be defined as the sum of proper divisors of n (numbers less than n which divide evenly into n).
If d(a) = b and d(b) = a, where a b, then a and b are
an amicable pair and each ...
分类：
编程语言 时间：
2014-06-02 12:31:42
阅读次数：
298
题目链接：
http://poj.org/problem?id=3126
题目：
Prime Path
Time Limit: 1000MS
Memory Limit: 65536K
Total Submissions: 10737
Accepted: 6110
Description
The ministers of...
分类：
其他好文 时间：
2014-06-02 02:21:22
阅读次数：
228
You are given two linked lists representing two
non-negative numbers. The digits are stored in reverse order and each of their
nodes contain a single ...
分类：
其他好文 时间：
2014-06-01 17:05:44
阅读次数：
296
问题：
Given a collection of numbers, return all possible permutations.
For example,
[1,2,3] have the following permutations:
[1,2,3], [1,3,2], [2,1,3], [2,3,1], [3,1,2],
and [3,2,1].
分析：
...
分类：
其他好文 时间：
2014-06-01 15:04:42
阅读次数：
259
??
Description
Given N numbers, X1,
X2, ... , XN, let us calculate the difference of every pair of numbers: ∣Xi
- Xj∣ (1 ≤ i
＜ j ≤ N). We can get C(N,2) differences through this work, and no...
分类：
其他好文 时间：
2014-06-01 14:07:56
阅读次数：
347
问题：
Given a collection of numbers that might contain duplicates, return all possible unique permutations.
For example,
[1,1,2] have the following unique permutations:
[1,1,2], [1,2,1],
and...
分类：
其他好文 时间：
2014-06-01 13:03:12
阅读次数：
324
Prime PathTime Limit: 1000MSMemory Limit:
65536KTotal Submissions: 10729Accepted: 6109DescriptionThe ministers of the
cabinet were quite upset by the ...
分类：
其他好文 时间：
2014-06-01 12:11:35
阅读次数：
174
题目链接：http://poj.org/problem?id=3252题意：给出一个二进制区间，求出0的个数不小于1的个数这样的二进制个数解法：数位DP，定义状态dp[len][num_zero][num_one]，num_zero
定义为写0的个数。 1 #include 2 #include 3...
分类：
其他好文 时间：
2014-06-01 12:06:33
阅读次数：
191
