- 博客(72)
- 资源 (3)
- 收藏
- 关注
RSS订阅原创 c++学习记录
时隔多年，再次学习c++，原因在与看了很多开源代码的实现，都是c++/c，不禁想弥补一下这方面的知识。1. 引入inline在c/c++中，为了解决一些频繁调用的函数，节省栈空间，引入了inline关键字，将调用的函数实现直接替换到函数处。从上述可以看出两点： 1. inline是一种对编译器的建议，真正是否inline，还得看这个函数是否足够简单，因此inline函数只适用简单代码； ...
2018-07-08 16:09:02
124
原创 bug整理
这篇文章会不定时的记录一些gbdt，xgboost，pandas实现过程中遇到的一些问题。1. 错误日志 DtypeWarning: Columns (6,7) have mixed types. 初始化xgboost的DMatrix时，raise TypeError('can not intialize DMatrix from {}'.format(type(data).__na...
2018-07-02 10:27:11
278
原创 python中的星号总结
1. 作为函数定义的参数In [6]: def sample(*args, **kwargs): ...: print args ...: print kwargs ...: In [7]: sample('hello', 'world', kw={'name': 'Bruce', 'age': 12})('hello', 'world'){'kw...
2018-06-19 13:20:04
258
原创 tensorflow学习踩坑
tensorflow的变量共享机制tensorflow提供了一个变量共享机制，并不需要显示的传递变量引用；tf.get_variable()创建一个变量或者返回一个已有变量；tf.variable()创建一个新的变量。因此有了tensorflow的name_scope和variable_scope来管理这2种变量；区别在于： 两种scope对于tf.variable()来说，都会添加前缀； ...
2018-06-13 15:23:42
427
原创 Number of Digit One
Given an integer n, count the total number of digit 1 appearing in all non-negative integers less than or equal to n.For example:Given n = 13,Return 6, because digit 1 occurred in the follow
2015-11-18 17:16:43
371
2
原创 Remove Linked List Elements
Remove all elements from a linked list of integers that have value val.ExampleGiven: 1 --> 2 --> 6 --> 3 --> 4 --> 5 --> 6, val = 6Return: 1 --> 2 --> 3 --> 4 --> 5此题的解法在与维护两个指针。p和q，p指向当
2015-05-03 18:08:31
674
原创 count primes
Count PrimesDescription:Count the number of prime numbers less than a non-negative number, n1. 给定一个数n，初始化一个长度比n稍微大一点的数组，num[n+1]，将其初始化为1.2. (判断m是否是素数的标准是是否存在{2, ..., sqrt(m)}
2015-05-03 00:35:27
311
原创 Surround the Trees 7.1.4
Surround the TreesTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 183 Accepted Submission(s): 93
2014-08-17 22:15:46
577
原创 Lifting the Stone 7.1.3
Lifting the StoneTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 155 Accepted Submission(s): 88 Proble
2014-08-17 21:59:11
481
原创 You can Solve a Geometry Problem too 7.1.2
You can Solve a Geometry Problem tooTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 129 Accepted Submission(s): 91
2014-08-17 21:55:18
433
原创 Shape of HDU 7.1.1
Shape of HDUTime Limit: 3000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 143 Accepted Submission(s): 88 Problem Des
2014-08-16 22:15:24
528
原创 Machine Schedule 6.3.3
Machine ScheduleTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 99 Accepted Submission(s): 66 Pr
2014-08-15 20:26:59
380
原创 National Treasures 6.3.8
National TreasuresTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 118 Accepted Submission(s): 60 Probl
2014-08-15 20:23:10
520
原创 Uncle Tom's Inherited Land* 6.3.7
Uncle Tom's Inherited Land*Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 147 Accepted Submission(s): 96 Problem
2014-08-15 20:08:15
448
原创 6.3.6 Card Game Cheater
Card Game CheaterTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 100 Accepted Submission(s): 71 Proble
2014-08-14 16:41:34
462
原创 6.3.5 50 years, 50 colors
50 years, 50 colorsTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 80 Accepted Submission(s): 57 Probl
2014-08-14 16:31:28
575
原创 6.3.4 Air Raid
Air RaidTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 116 Accepted Submission(s): 95 Problem Descrip
2014-08-14 16:24:23
430
原创 6.3.2 Girls and Boys
Girls and BoysTime Limit: 20000/10000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 180 Accepted Submission(s): 119 Proble
2014-08-14 16:18:19
416
原创 6.3.1 Strategic Game
Strategic GameTime Limit: 20000/10000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 100 Accepted Submission(s): 69 Problem Descriptio
2014-08-14 16:17:59
423
原创 4.3.8 Fling
FlingTime Limit: 6000/3000 MS (Java/Others) Memory Limit: 65535/65535 K (Java/Others)Total Submission(s): 124 Accepted Submission(s): 56 Problem Descriptio
2014-08-12 20:09:25
441
原创 4.3.7 Kill the monster
Kill the monsterTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 118 Accepted Submission(s): 86 Problem
2014-08-12 20:07:55
511
原创 4.3.6 N皇后问题
N皇后问题Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 523 Accepted Submission(s): 311 Problem Descripti
2014-08-12 19:48:44
578
原创 4.3.5 符号三角形
符号三角形Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 115 Accepted Submission(s): 73 Problem Descriptio
2014-08-12 19:45:27
482
原创 4.3.4 Sticks
SticksTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 323 Accepted Submission(s): 105 Problem De
2014-08-12 19:43:39
496
原创 4.3.3 Sudoku Killer
Sudoku KillerTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 820 Accepted Submission(s): 280 Pro
2014-08-12 19:33:23
403
原创 4.3.2 Prime Ring Problem
Prime Ring ProblemTime Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 438 Accepted Submission(s): 277 Prob
2014-08-12 19:32:53
407
原创 4.3.1 Tempter of the Bone
Tempter of the BoneTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 1033 Accepted Submission(s): 350 Pr
2014-08-12 19:30:20
387
原创 6.2.8 In Action
In ActionTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 285 Accepted Submission(s): 121 Problem Descr
2014-08-12 19:20:14
412
原创 How Many Paths Are There
How Many Paths Are ThereTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 159 Accepted Submission(s): 45
2014-08-12 19:18:11
534
原创 Trucking
TruckingTime Limit: 20000/10000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 102 Accepted Submission(s): 42 Problem Descr
2014-08-12 19:16:37
454
原创 Choose the best route
Choose the best routeTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 113 Accepted Submission(s): 41 Pr
2014-08-12 19:13:21
403
原创 Here We Go(relians) Again
Here We Go(relians) AgainTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 169 Accepted Submission(s): 107
2014-08-10 22:24:20
463
原创 Arbitrage
ArbitrageTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 85 Accepted Submission(s): 51 Problem D
2014-08-10 22:20:34
420
原创 A Walk Through the Forest
A Walk Through the ForestTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 82 Accepted Submission(s): 40
2014-08-10 22:18:54
542
原创 最短路
最短路Time Limit: 5000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 257 Accepted Submission(s): 143 Problem Description
2014-08-09 22:30:18
371
原创 Pseudoforest
PseudoforestTime Limit: 10000/5000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others)Total Submission(s): 254 Accepted Submission(s): 112 Problem D
2014-08-09 22:28:13
361
原创 Connect the Cities
Connect the CitiesTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 360 Accepted Submission(s): 129 Prob
2014-08-09 22:24:03
414
原创 继续畅通工程
继续畅通工程Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 32768/32768 K (Java/Others)Total Submission(s): 156 Accepted Submission(s): 125 Problem Descript
2014-08-09 22:23:54
365
原创 Jungle Roads
Jungle RoadsTime Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 118 Accepted Submission(s): 110 Problem De
2014-08-09 22:23:11
427
原创 还是畅通工程
还是畅通工程Time Limit: 4000/2000 MS (Java/Others) Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 156 Accepted Submission(s): 120 Problem Descript
2014-08-09 22:22:02
322
空空如也
TA创建的收藏夹 TA关注的收藏夹
TA关注的人