Topological精品文章

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  [LintCode] Topological Sorting [BFS & DFS]

  Problem Given an directed graph, a topological order of the graph nodes is defined as follow: For each directed edge A -> B in graph, A must before B in the order list.The first node in the order can ...

  draveness 2019-08-14 15:24 評(píng)論0 收藏0
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  Graph: Topological Sort

  Graph: Topological Sort 利用和detect cycle類(lèi)似的思路， 用dfs + recursion解決。并且一定時(shí)一個(gè)有向圖。 Stack stack = new Stack(); // 0:unvisit, 1:visited, 2:visiting public boolean topologicalSort(Node node) { if(node.stat...

  ShevaKuilin 2019-08-14 15:01 評(píng)論0 收藏0
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  算法（第4版） Chapter 4.4 最短路徑

  ... distTo[v] = Double.POSITIVE_INFINITY; distTo[s] = 0.0; Topological top = new Topological(G); //只增加了這一個(gè)?。?！就把性能提高了！?。? for (int v : top.order()) relax(G, v); ...

  leap_frog 2019-08-14 17:16 評(píng)論0 收藏0
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  算法（第4版） Chapter 4.2 有向圖

  ...} public Iterable reversePost() { return reversePost; } } Topological 代碼 復(fù)雜度： 時(shí)間： V+E （為什么我覺(jué)得Topological這個(gè)類(lèi)沒(méi)干什么實(shí)事，DirectedCycle檢測(cè)是否是有向無(wú)環(huán)圖，DepthFirstOrder進(jìn)行了排序。。。Topological感覺(jué)就封裝了...

  曹金海 2019-08-14 17:13 評(píng)論0 收藏0
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  Alien Dictionary

  Alien Dictionary 題目鏈接：https://leetcode.com/problems... 圖用topological sort，和course schedule題類(lèi)似。要找到所有字母的indegree，之后用q存下入度為0的字母，然后輸出。要記錄下每個(gè)字母對(duì)應(yīng)的所有parent字母，防止重復(fù)。求indegree的過(guò)...

  gaomysion 2019-08-14 17:18 評(píng)論0 收藏0
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  Leetcode[332] Reconstruct Itinerary

  ...SJC], [LHR, SFO]] Return [JFK, MUC, LHR, SFO, SJC]. DFS + Topological Sort 復(fù)雜度O(N), O(N) 思路重建graph，應(yīng)為要按lexical order進(jìn)行排序，所以用priorityqueue來(lái)決定下一個(gè)要poll出去的值。 代碼 public List findItinerary(String[][] t...

  Flands 2019-08-14 15:57 評(píng)論0 收藏0
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  [Leetcode] Alien Dictionary 外文字典

  ...排序的最后一步，根據(jù)計(jì)數(shù)器值廣度優(yōu)先搜索 topologicalSort(order, graph, indegree); // 如果大小相等說(shuō)明無(wú)環(huán) return order.length() == indegree.size() ? order.toString() : ; } ...

  pkhope 2019-08-14 12:38 評(píng)論0 收藏0
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  Licia：最全最實(shí)用的 JavaScript 工具庫(kù)

  ...function to its source code. toStr: Convert value to a string. topoSort: Topological sorting algorithm. trigger: Trigger browser events. trim: Remove chars or white-spaces from beginning end of...

  luxixing 2019-08-22 17:00 評(píng)論0 收藏0