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poj----（1470）Closest Common Ancestors（LCA）

Closest Common Ancestors Time Limit: 2000MS Memory Limit: 10000K Total Submissions: 15446 Accepted:...A node can be its own ancestor (for example in Figure 1 the ancestors of node 2 are 2 and 5) Input The

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POJ 1330 Nearest Common Ancestors（裸LCA）

Nearest Common Ancestors Time Limit: 1000MS Memory Limit: 10000K Total Submissions: 39596 Accepted:...As a matter of fact, nodes 8, 4, 10, and 16 are the ancestors of node 16....Nodes 8, 4, 6, and 7 are the ancestors of node 7....Thus, nodes 8 and 4 are the common ancestors of nodes 16 and 7....ancestor of nodes y and z if x is a common ancestor of y and z and nearest to y and z among their common ancestors

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poj----1330Nearest Common Ancestors（简单LCA)

题目连接 http://poj.org/problem?id=1330 就是构建一棵树，然后问你两个节点之间最近的公共父节点是谁？代码： 1 /*Sour...

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HDU 1330 Nearest Common Ancestors(求两个点的近期公共祖先)

const int maxn = 40010; struct nod{ int u,v,next,w,lca; }edge[maxn*2],edge1[maxn]; int par[maxn],ancestors

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Spark RDD依赖的深度优先搜索

val ancestors = new mutable.HashSet[RDD[_]] ancestors 是一个 Set 数据结构，用来存放已经查找过的父 RDD。...val ancestors4 = rdd4.getNarrowAncestors val ancestors5 = rdd5.getNarrowAncestors // Simple...dependency tree with a single branch assert(ancestors1.size === 0) assert(ancestors2.size ==...[_, _]]) === 4) // Any ancestors before the shuffle are not considered assert(ancestors4.size...=== 0) assert(ancestors4.count(_.isInstanceOf[ShuffledRDD[_, _, _]]) === 0) assert(ancestors5

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分销系统常用算法深度解析

): ancestor_id = ancestors[level - 1] commission = order_amount * rate...(self, user_id, ttl=3600): """获取用户上级（带缓存）""" cache_key = f"user_ancestors:{user_id}"...= self.db.get_user_ancestors(user_id) # 写入缓存 self.redis.setex(cache_key, ttl..., json.dumps(ancestors)) return ancestors def invalidate_user_cache(self, user_id...): """用户关系变更时清理缓存""" patterns = [ f"user_ancestors:{user_id}",

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WordPress 技巧：找到最顶层父页面的 ID

php if ($post->post_parent) { $ancestors = get_post_ancestors($post->ID); $root = count($ancestors...)-1; $parent = $ancestors[$root]; } else { $parent = $post->ID; } ?

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打破 iframe 安全限制的 3 种方案

join’ in a frame because an ancestor violates the following Content Security Policy directive: “frame-ancestors...'none' # 只允许被同源的页面嵌入 Content-Security-Policy: frame-ancestors 'self' # 只允许被白名单内的页面嵌入 Content-Security-Policy...: frame-ancestors www.example.com # 不允许被嵌入，包括, , 和 X-Frame-Options:...self.location; } 而 Github 登录页，同时设置了 CSP 和X-Frame-Options响应头： Content-Security-Policy: frame-ancestors...iframe github login 参考资料 Clickjacking Defense Cheat Sheet 6.3.2. frame-ancestors CSP Cheat Sheet 联系我

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The Chinese zodiac

Our Chinese ancestors constructed a very complicated theoretical framework based on inner yang, the five...Our ancestors were very busy surviving poverty, drought, famine, riot, disease and civil war....Our ancestors were very busy surviving poverty, drought, famine, riot, disease and civil war.

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iframe跨域安全

支持的指令 frame-ancestors uri1 uri2 允许一个页面可否在，，，，或中展现。...将此指令设置’none’为类似于X-Frame-Options: DENY 在nginx中配置 add_header Content-Security-Policy "frame-ancestors ‘...none’"; add_header Content-Security-Policy "frame-ancestors http://www.a.com http://www.b.com"; 兼容性 IE

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树状结构数据

= getAncestors(root, node1); List ancestors2 = getAncestors(root, node2);...// 查找两个列表是否有共同元素 for (Integer ancestor1 : ancestors1) { if (ancestors2.contains(ancestor1...TreeNode node) { Map nodeMap = convertTreeToMap(root); List ancestors...= 0) { // 假设根节点的parentId为0 ancestors.add(parentId); TreeNode parentNode = nodeMap.get...如果父节点为空，则到达树的顶端 } parentId = parentNode.getParentId(); } return ancestors

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Acunetix扫描安全漏洞的记录

) 未实施解决方案：可以在 web.config 配置，在节点里面ancestors...# 只允许被同源的页面嵌入 ancestors...httpProtocol># 不允许被嵌入，包括, , , 和 Content-Security-Policy: frame-ancestors...'none'# 只允许被同源的页面嵌入Content-Security-Policy: frame-ancestors 'self'# 只允许被白名单内的页面嵌入Content-Security-Policy...: frame-ancestors www.example.com# 不允许被嵌入，包括, , 和 X-Frame-Options: deny

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防御点击劫持：X-Frame-Options头的重要性与实践

Content Security Policy（CSP）：使用CSP来限制页面被嵌套的情况，通过配置 frame-ancestors 策略。...在 CSP 中配置 frame-ancestors：在 CSP 中，使用 frame-ancestors 指令来限制页面在 frame 中的展示。...: frame-ancestors 'self'; 允许在特定域名的 frame 中展示： Content-Security-Policy: frame-ancestors https://example.com...frame-ancestors 的配置是在 CSP 中的一部分，因此在设置 CSP 头时，需要将其添加到相应的策略中。...防护措施：使用 frame-ancestors 指令在 CSP 中限制允许的 frame 祖先，确保只有指定的域名可以展示页面。 2.

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laravel-nestedset：多级无限分类正确姿势

::fixTree(); 关系 Node具有以下功能，他们功能完全且被预加载: Node belongs to parent Node has many children Node has many ancestors...Ancestors和Descendants都可以预加载。...// Accessing ancestors $node->ancestors; // Accessing descendants $node->descendants; 通过自定义的查询加载ancestors...')->paginate(30); // 视图模板中面包屑: @foreach($categories as $i => $category) $category->ancestors...implode(' > ', $category->ancestors->pluck('name')->toArray()) : 'Top Level' $category

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Vue3 源码解析（二）：AST解析器

解析子节点 function parseChildren( context: ParserContext, mode: TextModes, ancestors: ElementNode[]...): TemplateChildNode[] { const parent = last(ancestors) // 获取当前节点的父节点 const ns = parent ?...isEnd(context, mode, ancestors)) {/* 忽略逻辑 */} // 处理空白字符，提高输出效率 let removedWhitespace = false if...nodes.filter(Boolean) : nodes } 从上文代码中，可以知道 parseChildren 函数接收三个参数，context：解析器上下文，mode：文本数据类型，ancestors...== Namespaces.HTML) { node = parseCDATA(context, ancestors) } } /

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Unity应用架构设计(5)——ViewModel之间如何共享数据

public static IEnumerable Ancestors(this ViewModelBase origin) where T : ViewModelBase {...parentViewModel = parentViewModel.ParentViewModel; } } 对应在ViewModel中，可以通过 Ancestors...扩展方法获取上层对象的数据 var ancestors = this.Ancestors(); 最后，以图示的形式会更加直观，下图所示，SubViewModel依靠继承链可以轻松访问到

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360桌面整理内存异常高根本原因原来是它？

") > 0) { //Check for photoshop specifically, or this will cause errors //Function Scrubs Document Ancestors...AdobeXMPScript"); var xmp = new XMPMeta( activeDocument.xmpMetadata.rawData); // Begone foul Document Ancestors...app.activeDocument.xmpMetadata.rawData = xmp.serialize(); } } //Now run the function to remove the document ancestors

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photoshop卡顿问题

Photoshop") > 0) { //Check for photoshop specifically, or this will cause errors //Function Scrubs Document Ancestors...AdobeXMPScript"); var xmp = new XMPMeta( activeDocument.xmpMetadata.rawData); // Begone foul Document Ancestors...app.activeDocument.xmpMetadata.rawData = xmp.serialize(); } } //Now run the function to remove the document ancestors

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解决PS打开文件太卡的问题

, or this will cause errors if(whatApp.search("Photoshop") > 0) { // Function Scrubs Document Ancestors...AdobeXMPScript"); var xmp = new XMPMeta( activeDocument.xmpMetadata.rawData); // Begone foul Document Ancestors...app.activeDocument.xmpMetadata.rawData = xmp.serialize(); } } // Now run the function to remove the document ancestors

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文心一言 VS 讯飞星火 VS chatgpt （318）-- 算法导论22.3 10题

Ancestors){ visited[v]=true ancestors[v]=append(ancestors[v], v)// 每个节点都是自己的祖先 for _, w :=range...visited[w]{ fmt.Printf("树边: (%s, %s)\n", v, w) dfs(g, w, visited, ancestors)...ancestors[v]=append(ancestors[v], ancestors[w]...)// 更新祖先列表 }elseif contains(ancestors[v]...:=make(Ancestors) for k :=range g { if!...visited[k]{ dfs(g, k, visited, ancestors) } } } 无向图的修改对于无向图，主要区别在于我们不再区分前向边和后向边（因为边是双向的）

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点击加载更多

poj----（1470）Closest Common Ancestors（LCA）

POJ 1330 Nearest Common Ancestors（裸LCA）

poj----1330Nearest Common Ancestors（简单LCA)

HDU 1330 Nearest Common Ancestors(求两个点的近期公共祖先)

Spark RDD依赖的深度优先搜索

分销系统常用算法深度解析

WordPress 技巧：找到最顶层父页面的 ID

打破 iframe 安全限制的 3 种方案

The Chinese zodiac

iframe跨域安全

树状结构数据

Acunetix扫描安全漏洞的记录

防御点击劫持：X-Frame-Options头的重要性与实践

laravel-nestedset：多级无限分类正确姿势

Vue3 源码解析（二）：AST解析器

Unity应用架构设计(5)——ViewModel之间如何共享数据

360桌面整理内存异常高根本原因原来是它？

photoshop卡顿问题

解决PS打开文件太卡的问题

文心一言 VS 讯飞星火 VS chatgpt （318）-- 算法导论22.3 10题

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