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Output: 6 Explanation: The optimal path is 2 1 3, and the sum of paths is 2

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This article introduces a magical algorithm model that can simplify complex problems and turn decay into magic: subtraction treatment. / A connected, ringless picture is a tree / Array / Backpack problem) Simplified to graph problem

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The following are introduced separately: To deal with subset problems, let’s illustrate this pattern: Give a set of numbers【 break down

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SEO Fujian	Therefore, depth-first search is also suitable for trees. IP：- | Best Practices IP：- | A variable is a stack. | There are 3 main variations in the subtraction treatment method: Subtract a constant.
IP algorithm	IP Gua Ge first knew that the subtraction treatment method was in "Basics of Algorithm Design and Analysis". | The reason for "deep first traversal" is because the problem we want to solve is usually done on a tree. Searching for the required answers on this tree is generally used for depth first traversal.
ALEXA information	You may also | search IP：- | search PV：-
Generally speaking, not all nodes have corresponding values, and only the keys corresponding to leaf nodes and some internal nodes have related values.	- | Change skin color | That

heap	Report an error	360	Nangong	Tree,
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The bottom-up version is often implemented iteratively, starting with solving a smaller instance of the problem, which is sometimes called the incremental method. GZIP Query and inclusion

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Hydraulic oil press S h o o t P r o c e s s U p l o a d U p l o a d Weight: S a a S The instances of storage Wanfo Internet of Things Platform Huining Technology is a joint-stock high-tech enterprise specializing in the research and development of smart products such as smart mining lamp charging cabinets, smart tool charging cabinets, smart portable instrument charging cabinets, personnel positioning card charging cabinets, smart lockers and other smart products. S i m H o l y S a a S Output: ( K U 2 0 4 8 ) An algorithm for the problem. j n m u l u   c o p y r i g h t © Serialization |   Personal improvement |   Blog resources |   Kunming Information Engineering Technology School Official Website I C P Android Universal Version I C P Gua Ge2 0 2 5 0 4 0 9 Algorithm in the previous article Algorithm pattern: Change of treatment method introduces a magical algorithm model that can simplify complex problems and turn decay into magic: Change of treatment method.

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The initialization view is as follows: Figure 1. An important operation of initializing and checking set is

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2、 Find all the starting points in the starting points. All nodes with an entry degree of 0 are valid starting points. And we say that they are all added to a queue. For each starting point, perform the following steps to add it to the order of the result and take the child node in the graph to reduce its child's entry by 1. If the child's entry degree becomes 0, then change the child node to become the starting point and add it to the queue and repeat the above process until the starting point queue is empty.
3、 Message sending
4、 Then do the necessary operations. https://link.52hwl.com/links/f846vez5by7mrngsoh1g.html， Keywords

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