题目：Givennnon-negative integers representing an elevation map where the width of each bar is 1, compute how much water it is able to trap after raining...
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移动开发 时间：
2015-04-17 23:51:07
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163
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...
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编程语言 时间：
2015-04-17 22:17:56
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225
Merging DataAdding ColumnsTo merge two data frames (datasets) horizontally, use the merge function. In most cases, you join two data frames by one or ...
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编程语言 时间：
2015-04-17 22:05:43
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239
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...
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其他好文 时间：
2015-04-17 19:49:04
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188
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...
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其他好文 时间：
2015-04-17 18:05:48
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104
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# -*...
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其他好文 时间：
2015-04-17 17:58:07
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138
Number of Islands2015.4.17 06:16Given a 2d grid map of'1's (land) and'0's (water), count the number of islands. An island is surrounded by water and i...
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其他好文 时间：
2015-04-17 07:08:59
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294
Once again Tavas started eating coffee mix without water! Keione told him that it smells awful, but he didn't stop doing that. That's why Keione told his smart friend, SaDDas to punish him! SaDDas too...
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其他好文 时间：
2015-04-16 23:45:21
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3739
T -Most PowerfulTime Limit:2000MSMemory Limit:65536KB64bit IO Format:%lld & %lluSubmitStatusPracticeZOJ 3471Appoint description:DescriptionRecently, r...
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其他好文 时间：
2015-04-16 23:40:24
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171
Givennnon-negative integersa1,a2, ...,an, where each represents a point at coordinate (i,ai).nvertical lines are drawn such that the two endpoints of ...
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其他好文 时间：
2015-04-16 23:23:23
阅读次数：
127
