题意 题意翻译 对于一个字符串\(s\),我们定义其美丽值\(f(s)\)为满足下列两个条件的正整数\(i\)的个数: \(1\leq i<|s|\) \(s\)长度为\(i\)的前缀与后缀相等,即\(\forall j\in N,1\leq j\leq i\),均有\(s_j=s_{|s|-i+j}\) 给定正整数\(n(1\leq n\leq 10^5),k(1\leq k\leq 10^9)\).设字符集大小为\(k\),请求出所有长度为\(n\)的字符串\(s\)的\(f(s)^2\)的…

IndentationError: expected an indented block 翻译为IndentationError:预期的缩进块 解决方法:有冒号的下一行要缩进,该缩进就缩进…

昨天上架到appStore的时候碰到个问题,构建好后上传到itunesconnect的的包都用不了, 显示错误为:此构建版本无效. 或者英文显示为:ITC.apps.preReleaseBuild.errors.invalidBinary 由于和itunesconnect帐号绑定的邮箱暂时进不去,没看到apple发到我们邮箱的通知信息,所以只在度娘搜索:有的说 是网络问题,有说是电脑问题,有说是icon问题,有说使用Application Loader上传..... 但是试了都没解决问题,然后就…

Java代码如下: FileSystem fs = FileSystem.get(conf); in = fs.open(new Path("hdfs://192.168.130.54:19000/user/hmail/output/part-00000")); 抛出异常如下: Exception in thread "main" java.lang.IllegalArgumentException: Wrong FS: hdfs://192.168.130.54:…

转载自:  http://blog.csdn.net/wsjshx/article/details/40743291 将XCode升级到6后,报Too many arguments to function call, expected 0, have *,在XCode5.1里能编译通过的,到xcode6就报错 objc_msgSend(self.beginRefreshingTaget, self.beginRefreshingAction, self); Too many arguments…

报错: [ERROR] Terminal initialization failed; falling back to unsupported java.lang.IncompatibleClassChangeError: Found class jline.Terminal, but interface was expected at jline.TerminalFactory.create(TerminalFactory.java:101) at jline.TerminalFactory.…

同步源码,问题重现: Fetching project platform/external/libopus Fetching project repo error: Cannot fetch repo (TypeError: expected string or buffer) Fetching project CyanogenMod/android_external_tinycompress Exception : Traceback (most recent call last): File…

定义结构体后整体赋值时发生错误 typedef struct NODE { struct NODE *fwd; struct NODE *bwd; int value; } Node; //声明变量 Node first; first = {NULL, &second, 4}; 错误: error: expected expression 之所以不行是,{}内容被当做语句块了,c语言允许直接对结构体初始化,或者在赋值的时候加上类型说明,或者是逐一赋值. 初始化赋值: typedef struct…

expected an indented block 在初步使用Python的时候遇到了" expected an indented block"报错信息,查询相关的博客得知是因为一款对缩进非常敏感的语言. 在编译时会出现这样的错IndentationError:expected an indented block说明此处需要缩进,你只要在出现错误的那一行,按空格或Tab(但不能混用)键缩进就行. 参考地址:http://blog.csdn.net/neilhappy/article/…

JUnit4:Test文档中的解释: The Test annotation supports two optional parameters. The first, expected, declares that a test method should throw an exception. If it doesn't throw an exception or if it throws a different exception than the one declared, the tes…