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例如在如下一段代码中： Matrix m = new Matrix(2,3); for(int i=0; i<m.getRowDimension(); i++) { for(int j=0; j<m.getColumnDimension(); j+... 阅读全文
posted @ 2015-09-22 15:19
江湖小妞
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Question:Sort a linked list inO(nlogn) time using constant space complexity.Analysis:问题描述：在O(nlogn)时间内用常数的空间复杂度，完成一个链表的排序。思考：排序时间复杂度为O(nlogn)的话，快排、堆排序... 阅读全文
posted @ 2015-09-21 22:18
江湖小妞
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1.如题。 最近写了一个FCM的聚类算法，希望能够可视化结果，因此一个想法是调用weka中的包，使自己的程序可以可视化。这里参考了网络上的方法，首先实现在Eclipse中调用weka包实现分类的功能。 步骤如下： 1. 到weka官网下载weka安装程序，并安装； 2.在weka安装目录：（我的是C 阅读全文
posted @ 2015-09-21 14:20
江湖小妞
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Question:Given a binary tree, find its maximum depth.The maximum depth is the number of nodes along the longest path from the root node down to the fa... 阅读全文
posted @ 2015-09-20 14:09
江湖小妞
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Question:Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST.According to thedefinition of LCA on Wi... 阅读全文
posted @ 2015-09-20 10:47
江湖小妞
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Question:Write a program to find then-th ugly number.Ugly numbers are positive numbers whose prime factors only include2, 3, 5. For example,1, 2, 3, 4... 阅读全文
posted @ 2015-09-19 20:04
江湖小妞
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Question:Write a program to check whether a given number is an ugly number.Ugly numbers are positive numbers whose prime factors only include2, 3, 5. ... 阅读全文
posted @ 2015-09-19 19:05
江湖小妞
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Question:Given an arraynums, write a function to move all0's to the end of it while maintaining the relative order of the non-zero elements.For exampl... 阅读全文
posted @ 2015-09-19 18:33
江湖小妞
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Question:Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may c... 阅读全文
posted @ 2015-09-19 16:12
江湖小妞
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Question:Say you have an array for which theithelement is the price of a given stock on dayi.Design an algorithm to find the maximum profit. You may c... 阅读全文
posted @ 2015-09-19 14:01
江湖小妞
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