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Python Show-Me-the-Code 第 0004 题 统计单词
第 0004 题:任一个英文的纯文本文件,统计其中的单词出现的个数。思路:用正则表达式匹配响应的单词和数字,然后让Counter计算单词的词频,再用most_common方法返回一个按照词频排序的包含该词语和该词语出现的次数的元组的列表。0004.统计单词.py#!/usr/bin/env python #coding: utf-8 import re from collections import...
分类:编程语言   时间:2015-04-17 22:17:56    阅读次数:225
R语言合并data.frame
Merging DataAdding ColumnsTo merge two data frames (datasets) horizontally, use the merge function. In most cases, you join two data frames by one or ...
分类:编程语言   时间:2015-04-17 22:05:43    阅读次数:239
QtGui.QGridLayout
The most universal layout class is the grid layout. This layout divides the space into rows and columns. To create a grid layout, we use theQtGui.QGri...
分类:其他好文   时间:2015-04-17 19:49:04    阅读次数:188
leetcode problem 11 Container With Most Water
Given n non-negative integers a1, a2, ..., an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpo...
分类:其他好文   时间:2015-04-17 18:05:48    阅读次数:104
Toolbar
Menus group all commands that we can use in an application. Toolbars provide a quick access to the most frequently used commands.#!/usr/bin/python# -*...
分类:其他好文   时间:2015-04-17 17:58:07    阅读次数:138
(状态压缩DP) zoj 3471
T -Most PowerfulTime Limit:2000MSMemory Limit:65536KB64bit IO Format:%lld & %lluSubmitStatusPracticeZOJ 3471Appoint description:DescriptionRecently, r...
分类:其他好文   时间:2015-04-16 23:40:24    阅读次数:171
#11 Container With Most Water
Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints of ...
分类:其他好文   时间:2015-04-16 23:23:23    阅读次数:127
Leetcode: Container With Most Water
题目: Given n non-negative integers a1, a2, …, an, where each represents a point at coordinate (i, ai). n vertical lines are drawn such that the two endpoints of line i is at (i, ai) and (i, 0). Find tw...
分类:其他好文   时间:2015-04-16 21:59:36    阅读次数:114
poj 2886 Who Gets the Most Candies? 线段树动态求第k大的数
题意: n个小孩站一圈,每个小孩拿一个数字,从第k个孩子开始出局,然后下一个出局的孩子是刚刚出局的孩子之前或之后第v个(刚刚出局的孩子的数字是+v则之后v个,-v则之前v个),这样所有孩子终将出局,第p个出局的孩子得f(p)分,f(p)定义为p的因子个数。求分数最高的孩子。 分析: 设顺时针为正方向,关键是模拟出每次出局的孩子是剩下的孩子中的正方向的第几个,设当前要出局的是第k个,然后要求出...
分类:其他好文   时间:2015-04-16 09:09:17    阅读次数:209
11. Container With Most Water
题目:Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints ...
分类:其他好文   时间:2015-04-16 01:17:43    阅读次数:127
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