inline | 易学教程

BZOJ-2243【SDOI2011】染色&洛谷P2486（线段树区间合并+树链剖分）

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题目链接： https://www.lydsy.com/JudgeOnline/problem.php?id=2243 洛谷：时间限制 1.00s 内存限制 125.00MB BZOJ： Time Limit: 20 Sec Memory Limit: 512 MB Description 给定一棵有n个节点的无根树和m个操作，操作有2类： 1、将节点a到节点b路径上所有点都染成颜色c； 2、询问节点a到节点b路径上的颜色段数量（连续相同颜色被认为是同一段），如“112221”由3段组成：“11”、“222”和“1”。请你写一个程序依次完成这m个操作。 Input 第一行包含2个整数n和m，分别表示节点数和操作数；第二行包含n个正整数表示n个节点的初始颜色下面行每行包含两个整数x和y，表示x和y之间有一条无向边。下面行每行描述一个操作： “C a b c”表示这是一个染色操作，把节点a到节点b路径上所有点（包括a和b）都染成颜色c； “Q a b”表示这是一个询问操作，询问节点a到节点b（包括a和b）路径上的颜色段数量。 Output 对于每个询问操作，输出一行答案。 Sample Input 6 5 2 2 1 2 1 1 1 2 1 3 2 4 2 5 2 6 Q 3 5 C 2 1 1 Q 3 5 C 5 1 2 Q 3 5 Sample Output 3 1

How to get rid of “inline function used but never defined” warning in g++

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问题 I'm using mingw-w64. I'm including strsafe.h and getting the following warning: warning: inline function 'HRESULT StringCchPrintfA(STRSAFE_LPSTR, size_t, STRS AFE_LPCSTR, ...)' used but never defined [enabled by default] The only flags flags I used are -Wall -DDEBUG -g . I know that you have to define inline functions in the same header and I looked at strsafe.h and I clearly can see that StringCchPrintfA in the header, so I don't know why its giving me this error. Also, here is a link to

Automatically inline CSS from a CSS-file (jquery? ajax? php?)

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问题 For reasons we dont need to get in to, I need to put the content of a CSS-file into the style tags of a html-page. I want to do it automatically, so I need to read the CSS file and put it's content in my style tag in my header. Any idea how to do this? 回答1: The best would be if you used PHP, django, ASP.net or something from this family. For PHP I would do like this: <style id="Something"> <?php readfile("http://example.com/some/style.css"); ?> </style> But if you want to use jQuery, try this

Inline ignore in Streams

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问题 Is there a way to ignore characters in C++ inline? For example in this answer I'm reading in: istringstream foo("2000-13-30"); foo >> year; foo.ignore(); foo >> month; foo.ignore(); foo >> day; But I'd like to be able to do this all inline: foo >> year >> ignore() >> month >> ignore() >> day; I thought this was possible in C++, but it definitely isn't compiling for me. Perhaps I'm remembering another language? 回答1: foo.ignore() is a member function so it can't be used as a manipulator. It

What if I declare a big function as inline function?

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问题 I search some related questions (such as Benefits of inline functions in C++?), but I still have questions. If inline function is just to "provide a simple mechanism for the compiler to apply more OPTIMIZATIONS." Then can I set every function as inline function? If I wrongfully set a function as inline function, what would happen concerning performance? Any threshold that tells me what size of function should not be inline function? 回答1: Use inline only to satisfy the One Definition Rule. Don

Inline a common method

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问题 I want to inline TraitA::x() method without knowing who implements TraitA . For example: (Note: StructB implements TraitA .) let a: &TraitA = &StructB { x: 0f32 }; a.x(); // This should access `a.x` field directly // as `TraitA::x()` always return the same field, // the same `b.x` field slot. The method will be implemented the same way in different structs. trait TraitA { fn x(&self) -> f32; } struct StructB { x: f32 } impl TraitA for StructB { #[inline] fn x(&self) -> f32 { self.x } } Will a

inline Latex code inside knitr R block

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问题 I am looking for a way to put inline latex code into a R code chunk in Knitr. Here is my example code from the knitr example site : \documentclass{article} \begin{document} Example text outside R code here; we know the value of pi is \Sexpr{pi}. <<my-label, echo=FALSE, eval=TRUE>>= set.seed(1213) # for reproducibility x = cumsum(rnorm(100)) m <- mean(x) # mean of x print(m) cat(m) plot(x, type = 'l') # Brownian motion @ \textit{Mean is :} \textbf{\Sexpr{m}} \end{document} For something simple

Inline speed and compiler optimization

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问题 I'm doing a bit of hands on research surrounding the speed benefits of making a function inline. I don't have the book with me, but one text I was reading, was suggesting a fairly large overhead cost to making function calls; and when ever executable size is either negligible, or can be spared, a function should be declared inline, for speed. I've written the following code to test this theory, and from what I can tell, there is no speed benifit from declaring a function as inline. Both

Why doesn't inline-grid work in Safari?

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问题 I am working on a WordPress gravity form and used inline-grid for the layout. It works perfectly in Firefox and Chrome. But when it comes to Safari, display: inline-grid does not work. Although display: inline-block works. Run the following code snippet in Safari to see what I am talking about. .item { width: 50px; height: 50px; background-color: lightgray; display: inline-block; margin: 5px; } .item2 { width: 50px; height: 50px; background-color: gray; display: inline-grid; margin: 5px; }

c99 inline semantics with gcc (mspgcc)

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问题 I am writing a couple of functions that I would like to inline. Reading here and using the second c99 inline option with inline on all declarations and definitions, like so: extern inline void SPFD54124B_write_cmd(uint16_t command); in a header, and inline void SPFD54124B_write_cmd(uint16_t command) { spi_write(command, CMD_WIDTH); } in a corresponding c file. I was expecting to get inlined versions of the functions. But when I compile i get: Generating dependencies dep/spi.d from src/spi.c