有一个r行c列的全0矩阵,有以下三种操作。 1 X1 Y1 X2 Y2 v 子矩阵(X1,Y1,X2,Y2)的元素加v 2 X1 Y1 X2 Y2 v 子矩阵(X1,Y1,X2,Y2)的元素变为v 3 X1 Y1 X2 Y2 查询子矩阵(X1,Y1,X2,Y2)的和,最大值,最小值 1 X1 Y1 ...
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其他好文 时间:
2018-11-09 00:50:46
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163
Assume you have an array of length n initialized with all 0's and are given k update operations. Each operation is represented as a triplet: [startInd... ...
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其他好文 时间:
2018-11-08 18:33:41
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165
Implement the following operations of a queue using stacks. push(x) Push element x to the back of queue. pop() Removes the element from in front of qu ...
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其他好文 时间:
2018-11-05 16:23:58
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149
Design your implementation of the circular queue. The circular queue is a linear data structure in which the operations are performed based on FIFO (F ...
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其他好文 时间:
2018-11-03 01:55:33
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184
This would allow chaining operations like: pd.read_csv('imdb.txt') .sort(columns='year') .filter(lambda x: x['year']>1990) # < this is missing in Pand ...
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其他好文 时间:
2018-10-31 14:02:56
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324
tensorflow急切执行概述 Eager execution is an imperative, define by run interface where operations are executed immediately as they are called from Python. T ...
最近学习到了Linux驱动章节的课程,对设备的对应驱动的注册有些困惑,看了下发现是把设备的所有操作方法封装到结构体 file_operations 中,这个结构体为所有的设备文件都提供了统一的操作函数接口。然后把这个结构体连同设备的主设备号、名字(没啥用)一起,通过函数 register_chrde ...
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其他好文 时间:
2018-10-27 19:56:49
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194
Design and implement a data structure for Least Recently Used (LRU) cache. It should support the following operations: get and put. get(key) - Get the ...
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系统相关 时间:
2018-10-25 17:08:06
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181
Design a data structure that supports all following operations in average O(1) time. Example: 思路 HashMap + ArrayList 代码 ...
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其他好文 时间:
2018-10-24 10:51:18
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117
Implement a Queue with pop and push operations using concurrency coding. package com.company; import java.util.*; import java.util.concurrent.locks.*;... ...
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其他好文 时间:
2018-10-24 10:43:25
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114