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Data structure course design North Version 3:12.13 modified Recently, Mr. Zhang (in fact, I'm not sure who did it, but I feel that Mr. Zhang has this level) gave me an interesting question. Many younger brothers and sisters came to ask me. In order to facilitate everyone in the province to ask me several times, I'll share my personal ideas wi ...

We first found the following properties: We might as well orient the edges randomly first, so we find that no matter how we flip the edges. Will cause \ (2 / 4 \) impact on the points at both ends, so we find that if the sum of all edge weights connected to a point is even, we can't adjust it as a good point. Then we naturally think about wheth ...

Complement field, collect 2000+ questions of some missing math theories submitted in high numbers. A: SUM and REPLACE | CF 920F meaning of the title SUM and REPLACE | CF 920F Given length is n n Sequence of n ...

Dijkstra algorithm Algorithm description: The graph is transformed into adjacency matrix. Before the current point is listed as the target, the element in the matrix is the distance from the current point to the target point. The distance from this point is 0, the distance from directly connected points is the corresponding distance, and t ...

Problem surface have n n n teams compete, and each team needs to play the same number of games. Each game happens to be five wins for one team and five losses for the other. Give the number of games each team has won so far ...

catalog: Introduction cut point         Cut point set          Cut point realization          1. Violence         2.Tarjan Introduction cut point:         Cut point set:       &nbsp ...

And look up the set and map Joint search set There are several types of samples a, b, C and d, assuming V 2) In the parallel search set, each sample is considered to be in a separate set at the beginning 3) The user can call the following two methods at any time: Boolean issameset (VX, V, y): query whether sample x and sample y belong to ...

Introduction to graph theory Definition of graph Graph G =(V,E),V is a finite non empty set of vertices, and E is an edge set. V(G) and E(G) represent the vertex set and edge set of G, respectively. Where E(G) can be an empty set. If E(G) is a set of directed edges, then G is a directed graph, otherwise it is an undirected graph. < x, ...