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LeetCode: Remove Nth Node From End of List [019]
【题目】 Given a linked list, remove the nth node from the end of list and return its head. For example, Given linked list: 1->2->3->4->5, and n = 2. After removing the second node from the end, the linked list becomes 1->2->3->5. Note: Given n will ...
分类:其他好文   时间:2014-05-18 18:48:03    阅读次数:269
利用+=n连续保存或者输出n个数
for (int k = 0; k if (((k + 1) % 2) != 0) { m1 = (MealEntity) list.get(k); %> "> src="mealImg/.jpg" width="148" height="126" border="0" /> : 原价:人民币元 现价:人民币 元 "> ...
分类:其他好文   时间:2014-05-18 14:07:40    阅读次数:234
POJ 2387 Til the Cows Come Home dijkstra算法 用邻接表和邻接矩阵
题目如下: Til the Cows Come Home Time Limit: 1000MS        Memory Limit: 65536K Total Submissions: 27726        Accepted: 9353 Description Bessie is out in the field and wants to get back to the ba...
分类:其他好文   时间:2014-05-18 13:50:11    阅读次数:263
LeetCode 016 3Sum Closest
【题目】 Given an array S of n integers, find three integers in S such that the sum is closest to a given number, target. Return the sum of the three integers. You may assume that each input would have exactly one solution. For example, given array S = {...
分类:其他好文   时间:2014-05-18 10:37:57    阅读次数:269
LeetCode: Valid Parentheses [020]
【题目】 Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid. The brackets must close in the correct order, "()" and "()[]{}" are all valid but "(]" and "([)]" are not. 【题意】 判断给定的字符串是否是合法的...
分类:其他好文   时间:2014-05-18 10:08:11    阅读次数:327
python中的归并排序
本来在博客上看到用python写的归并排序的程序,然后自己跟着他写了一下,结果发现是错的,不得不自己操作。而自己对python不是很了解所以就变百度边写,终于在花了半个小时之后就写好了。 def merge(a, first, end, temp): if first < end: mid = (first+end)//2 merge(a, first, mid, temp) #前半部...
分类:编程语言   时间:2014-05-18 09:16:53    阅读次数:296
LeetCode 017 4Sum
【题目】 Given an array S of n integers, are there elements a, b, c, and d in S such that a + b + c + d = target? Find all unique quadruplets in the array which gives the sum of target. Note: Elements in a quadruplet (a,b,c,d) must be in non-descending ord...
分类:其他好文   时间:2014-05-18 08:46:04    阅读次数:227
LeetCode: Letter Combinations of a Phone Number [018]
【题目】 Given a digit string, return all possible letter combinations that the number could represent. A mapping of digit to letters (just like on the telephone buttons) is given below. Input:Digit string "23" Output: ["ad", "ae", "af", "bd", "be", "bf",...
分类:其他好文   时间:2014-05-18 07:30:12    阅读次数:340
【蓝桥杯】最大镜像子串
串“abcba”以字母“c”为中心左右对称;串“abba” 是另一种模式的左右对称。这两种情况我们都称这个串是镜像串。特别地,只含有1个字母的串,可以看成是第一种模式的镜像串。      一个串可以含有许多镜像子串。我们的目标是求一个串的最大镜像子串(最长的镜像子串),如果有多个最大镜像子串,对称中心靠左的优先选中。例如:“abcdeefghhgfeiieje444k444lmn”的最大镜像...
分类:其他好文   时间:2014-05-18 06:22:24    阅读次数:169
【机器学习算法-python实现】协同过滤(cf)的三种方法实现
(转载请注明出处:http://blog.csdn.net/buptgshengod)...
分类:编程语言   时间:2014-05-18 05:13:44    阅读次数:434
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