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Data Structure-lab 23 Graphs via Adjacency Lists Solved

: In this lab implement a Graph with an adjacency list.

Implement the following class:

#ifndef GRAPHAL_H

#define GRAPHAL_H

/* This class represents a weighted driected graph via an adjacency list.

*    Vertices are given an index, starting from 0 and ascending

*    Class W : W represent the weight that can be associacted with an edge.

*    We will not weight the vertices.

*/

template<class W> class GraphAL { private:

/* You fill out. */ public:

/* Initialize an empty graph. */ GraphAL();

/* Initialize the Graph with a fixed number of vertices. */

GraphAL(const int vertices);

/* Deconstructor shall free up memory */

~GraphAL();

/* Adds amt vertices to the graph. */ void addVertices(int amt);

/* Removes a vertex.

*    return wheter sucessful or not

*/ bool removeVertex(int idx);

/* Adds an edge with weight W to the graph. */ bool addEdge(const int start, const int end, const W &weight);

/*

*    Remove edge from graph.

*/ bool removeEdge(const int start, const int end);

void depthFirstTraversal(void (*visit)(const int node)); void breadthFirstTraversal(void (*visit)(const int node));
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/*

* Return adjacent weight from start to end (or -1 if they are * not adjacent.

*/

W adjacent(const int start, const int end);

/* Returns the TOTAL weight of the minimum spanning tree with the * given starting node.

* You must use Prim’s MST.

*/

W prims(const int start);

/* Print out the Graph */ void print() const;

};

#include "graphal.cpp"

#endif
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Write some test cases:

Create some test cases, using cxxtestgen, that you believe would cover all aspects of your code.

Memory Management:

Now that are using new, we must ensure that there is a corresponding delete to free the memory. Ensure there are no memory leaks in your code! Please run Valgrind on your tests to ensure no memory leaks!

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