Python - How to create a Graph Data Structure?

Create a Graph Data Structure.
Run the code here: https://repl.it/@VinitKhandelwal/Graph

class Graph:

  def __init__(self):

    self.numberOfNodes = 0

    self.adjacentDict = {}

  def addVertex(self, node):

    self.adjacentDict[node] = []

    self.numberOfNodes += 1

  def addEdge(self, node1, node2):

    self.adjacentDict[node1].append(node2)

    self.adjacentDict[node2].append(node1)

  def showConnections(self):

    for key, value in self.adjacentDict.items():

      print(f"{key}:{value}")

obj = Graph()

obj.addVertex(0)

obj.addVertex(1)

obj.addVertex(2)

obj.addVertex(3)

obj.addVertex(4)

obj.addVertex(5)

obj.addVertex(6)

obj.addEdge(3, 1)

obj.addEdge(3, 4)

obj.addEdge(4, 2)

obj.addEdge(4, 5)

obj.addEdge(1, 2)

obj.addEdge(1, 0)

obj.addEdge(0, 2)

obj.addEdge(5, 6)

obj.showConnections()

OUTPUT
0:[1, 2]
1:[3, 2, 0]
2:[4, 1, 0]
3:[1, 4]
4:[3, 2, 5]
5:[4, 6]
6:[5]

Comments

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