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Statistics and Linear Algebra 5
1. The way to get the minimum number in Pandas: lowest_income_county = income["county"][income["median_income"].idxmin()] #[income["median_income"].id ...
分类:其他好文   时间:2016-12-03 09:53:19    阅读次数:185
LeetCode OJ 236. Lowest Common Ancestor of a Binary Tree
Given a binary tree, find the lowest common ancestor (LCA) of two given nodes in the tree. According to the definition of LCA on Wikipedia: “The lowes ...
分类:其他好文   时间:2016-11-22 03:19:04    阅读次数:259
GDUFE ACM-1003
Lowest Common Multiple Plus Lowest Common Multiple Plus Time Limit: 2000/1000ms (Java/Others) Time Limit: 2000/1000ms (Java/Others) Problem Descriptio ...
分类:其他好文   时间:2016-11-14 01:48:58    阅读次数:137
Lowest Common Multiple Plus(hdu2028)
不解释。 ...
分类:其他好文   时间:2016-10-23 02:37:37    阅读次数:130
GDUFE ACM-1003
题目:http://acm.gdufe.edu.cn/Problem/read/id/1003 Lowest Common Multiple Plus Lowest Common Multiple Plus Time Limit: 2000/1000ms (Java/Others) Time Lim ...
分类:其他好文   时间:2016-10-17 20:23:15    阅读次数:177
图论-最近公共祖先-在线树上倍增
有关概念: 最近公共祖先(LCA,Lowest Common Ancestors):对于有根树T的两个结点u、v,最近公共祖先表示u和v的深度最大的共同祖先。 树上倍增是求LCA的在线算法(对于每一个询问输入后即计算) 思路: fa[i][j]表示编号为j的结点从下往上的第2i个祖先 即fa[0][ ...
分类:其他好文   时间:2016-10-17 06:54:48    阅读次数:185
(转载)LCA问题的Tarjan算法
转载自:Click Here LCA问题(Lowest Common Ancestors,最近公共祖先问题),是指给定一棵有根树T,给出若干个查询LCA(u, v)(通常查询数量较大),每次求树T中两个顶点u和v的最近公共祖先,即找一个节点,同时是u和v的祖先,并且深度尽可能大(尽可能远离树根)。L ...
分类:编程语言   时间:2016-10-14 23:36:45    阅读次数:258
236. Lowest Common Ancestor of a Binary Tree
Given a binary tree, find the lowest common ancestor (LCA) of two given nodes in the tree. According to the definition of LCA on Wikipedia: “The lowes ...
分类:其他好文   时间:2016-09-23 14:41:06    阅读次数:100
235. Lowest Common Ancestor of a Binary Search Tree
Given a binary search tree (BST), find the lowest common ancestor (LCA) of two given nodes in the BST. According to the definition of LCA on Wikipedia ...
分类:其他好文   时间:2016-09-17 11:59:59    阅读次数:113
September 10th 2016 Week 37th Saturday
An innovation that goes beyond imagination again raised the standard. 颠覆想象的创新,再一次刷新标准。 An advertisement for Audi A4L, its lowest price is about 240,00 ...
分类:其他好文   时间:2016-09-11 23:04:14    阅读次数:123
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