C++的深拷贝和浅拷贝 浅拷贝也叫位拷贝(bitwise assignment),意思就是将一个对象的内存映像按位原封不动的复制给另一个对象。如果字段是值类型的,则对该字段执行逐位复制;如果字段是引用类型,则复制引用但不复制引用的对象。 如果改变目标对象中引用型字段的值他将反映在原是对象中,也就是说 ...
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其他好文 时间:
2016-06-13 18:40:08
阅读次数:
125
Bitwise AND of Numbers Range
Total Accepted: 35825 Total
Submissions: 115763 Difficulty: Medium
Given a range [m, n] where 0
For example, given the range [5, 7], you should...
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其他好文 时间:
2016-06-12 02:00:20
阅读次数:
113
Description While walking down the street Vanya saw a label "Hide&Seek". Because he is a programmer, he used & as a bitwise AND for these two words re ...
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其他好文 时间:
2016-06-02 16:19:50
阅读次数:
269
题目链接:https://leetcode.com/problems/bitwise-and-of-numbers-range/
题目:
Given a range [m, n] where 0
For example, given the range [5, 7], you should return 4.
思路:
32位整型,只需判断每一位在m~n之间是否有0存...
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其他好文 时间:
2016-05-22 12:26:44
阅读次数:
170
Given a range [m, n] where 0 <= m <= n <= 2147483647, return the bitwise AND of all numbers in this range, inclusive. For example, given the range [5, ...
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其他好文 时间:
2016-04-25 06:41:47
阅读次数:
103
一:Number of 1 Bits 题目: Write a function that takes an unsigned integer and returns the number of ’1' bits it has (also known as the Hamming weight). F ...
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移动开发 时间:
2016-04-23 16:18:48
阅读次数:
261
题目: Given a range [m, n] where 0 <= m <= n <= 2147483647, return the bitwise AND of all numbers in this range, inclusive. For example, given the range ...
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编程语言 时间:
2016-03-31 14:13:41
阅读次数:
190
Description Pangzi recently realized that bitwise XOR operation is just an addition without carries. For example, when computing (1001)_2 XOR (1101)_2
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其他好文 时间:
2016-03-12 14:42:01
阅读次数:
197
Brief linkFly的《JavaScript-如果...没有方法》中提及如何手写Math.round方法,各种奇技淫招看着十分过瘾,最让我惊叹的是~~(x + 0.5 + (x >> 30)),完全通过加法和位运算搞定整数的四舍五入。...
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Web程序 时间:
2016-01-20 11:12:57
阅读次数:
233