在C++中,合并图中的线性顶点链可以通过以下步骤完成:
以下是一个示例代码:
#include <iostream>
#include <vector>
#include <unordered_set>
// 图的表示
class Graph {
public:
std::vector<std::unordered_set<int>> adjacencyList;
Graph(int numVertices) {
adjacencyList.resize(numVertices);
}
void addEdge(int src, int dest) {
adjacencyList[src].insert(dest);
adjacencyList[dest].insert(src);
}
};
// 合并线性顶点链
Graph mergeLinearVertexChain(const Graph& graph, const std::vector<int>& linearVertexChain) {
Graph mergedGraph = graph;
for (int vertex : linearVertexChain) {
if (vertex >= mergedGraph.adjacencyList.size()) {
mergedGraph.adjacencyList.resize(vertex + 1);
}
}
for (int i = 0; i < linearVertexChain.size() - 1; i++) {
int src = linearVertexChain[i];
int dest = linearVertexChain[i + 1];
mergedGraph.addEdge(src, dest);
}
return mergedGraph;
}
int main() {
// 创建一个示例图
Graph graph(5);
graph.addEdge(0, 1);
graph.addEdge(1, 2);
graph.addEdge(2, 3);
// 创建一个示例线性顶点链
std::vector<int> linearVertexChain = {3, 4, 2};
// 合并线性顶点链
Graph mergedGraph = mergeLinearVertexChain(graph, linearVertexChain);
// 打印合并后的图的邻接表
for (int i = 0; i < mergedGraph.adjacencyList.size(); i++) {
std::cout << "Vertex " << i << ": ";
for (int neighbor : mergedGraph.adjacencyList[i]) {
std::cout << neighbor << " ";
}
std::cout << std::endl;
}
return 0;
}
这段代码中,首先创建了一个示例图,然后创建了一个示例线性顶点链。接下来,调用mergeLinearVertexChain
函数将线性顶点链合并到图中,并返回合并后的图。最后,打印合并后的图的邻接表。
注意:这只是一个示例代码,实际应用中可能需要根据具体需求进行修改和优化。
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