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【C】C语言ispunct()函数:判断字符是否为标点符号或特殊字符

头文件:#inlude <ctype.h>ispunct() 函数用来检测一个字符是否为标点符号或特殊字符,其原型为: int ispunct(int c);【参数】c 为需要检测的字符。【返回值】若 c 为标点符号或特殊符号(非空格、非数字和非英文字母)返...

2019-09-10
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阻塞队列中的线程协作(阻塞、唤醒、锁)

阻塞队列,主要操作有两个,一个是put放入元素,另一个是take取出元素。所谓的阻塞就是当多个线程同时存取数据时,如果遇到队列为空或者队列为满时,会发生阻塞。并且多个线程同时执行take或者put操作时,某一时刻只有一个线程获...

2019-07-30
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3NF分解过程 3NF如何分解 (伪代码)

3NF 分解过程 (伪代码)let Fc be the canonical cover(最小函数依赖集) for F, i = 0 for each FD α → β Fc do if (none of Rj , j = 1, 2, . . . , i contains αβ) then i++Ri =...

2019-05-25
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windows 为什么驱动模块加载后可以删除而应用模块不可以

MmFlushImageSection,如果返回True,则可以删除,该函数在WRK中的说明是

2019-03-28
1

HDU 5572--An Easy Physics Problem(射线和圆的交点)

An Easy Physics Problem Time Limit: 2000/1000 MS (Java/Others) Memory Limit: 65536/65536 K (Java/Others) Total Submission(s): 3840 Accepted Submission(s...

2019-02-20
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笔记52 | 优化一段苏基平大神的代码记录

地址http://blog.csdn.net/xiangyong_1521/article/details/78814608----目录苏大神的原代码现代码----苏大神的原代码private void leaveCarApp(List<String> packageNames){ //把需要保留的A......

2018-06-19
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leetcode-458-Poor Pigs

题目描述:There are 1000 buckets, one and only one of them contains poison, the rest are filled with water. They all look the same. If a pig drinks that poison it w...

2018-05-21
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Educational Codeforces Round 21(A.暴力,B.前缀和,C.贪心)

A. Lucky Yeartime limit per test:1 secondmemory limit per test:256 megabytesinput:standard inputoutput:standard outputApart from having lots of holidays th...

2018-04-09
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POJ 2209 The King(简单贪心)

The King Time Limit: 2000MS Memory Limit: 65536K Total Submissions: 7499 Accepted: 4060 DescriptionOnce upon a time in a country far away lived a...

2018-04-08
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Codeforces 706B Interesting drink

B. Interesting drinktime limit per test:2 secondsmemory limit per test:256 megabytesinput:standard inputoutput:standard outputVasiliy likes to rest after a...

2018-04-08
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