一. 访问者模式
定义:表示一个作用于某对象结构中的各元素的操作。它你可以在不改变各元素的类的前提下定义作用于这些元素的新操作。
结构如下:
二. 举例
假设有一项科学实验,是用来对比两种种子在不同环境下的生长情况。
两种种子,一种是普通的种子(Seed_A),一种是太空运回的种子(Seed_B)。
生长环境,分别是在多雨环境下(Rain_Statu...
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编程语言 时间:
2014-07-06 10:58:04
阅读次数:
314
https://oj.leetcode.com/problems/trapping-rain-water/模拟题,计算出在凹凸处存水量。对于一个位置 i ,分别计算出它左边的最大值 left (从左扫描一遍), 右边的最大值 right(从右扫描一遍) 。找left right中的最小值,如果大于 ...
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移动开发 时间:
2014-06-28 16:32:30
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222
题目
Given n non-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.
For example,
Given [0,1,0,2,1,0,...
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移动开发 时间:
2014-06-27 23:20:39
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349
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.Fo...
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移动开发 时间:
2014-06-27 16:53:38
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262
Given n non-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:
2014-06-27 12:51:24
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258
这是一个很有意思的问题,求解最大容积问题,值得动脑筋想一想。
原题如下:
Given n non-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.
For...
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移动开发 时间:
2014-06-14 13:12:01
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268
原题地址:https://oj.leetcode.com/problems/trapping-rain-water/题意:Givennnon-negative
integers representing an elevation map where the width of each bar is ...
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移动开发 时间:
2014-06-12 23:35:22
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409
戳我去解题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 raini...
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移动开发 时间:
2014-06-10 08:48:04
阅读次数:
267
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.Fo...
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移动开发 时间:
2014-06-04 19:15:23
阅读次数:
345
Given n non-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:
2014-05-23 03:59:43
阅读次数:
364