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adding Graph data structure #84

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Merged
AnupKumarPanwar merged 1 commit into from
May 2, 2019
Merged

adding Graph data structure #84

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50 changes: 50 additions & 0 deletions Data Structures/Graph/Graph.js
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Original file line number Diff line number Diff line change
@@ -0,0 +1,50 @@

class Graph {

constructor() {
this.adjacencyMap = {}
}

addVertex(v) {
this.adjacencyMap[v] = [];
}

containsVertex(vertex) {
return typeof (this.adjacencyMap[vertex]) !== "undefined"
}

addEdge(v, w) {
let result = false
if (this.containsVertex(v) && this.containsVertex(w)) {
this.adjacencyMap[v].push(w);
this.adjacencyMap[w].push(v);
result = true
}
return result
}



printGraph() {
let keys = Object.keys(this.adjacencyMap);
for (let i of keys) {
let values = this.adjacencyMap[i];
let vertex = "";
for (let j of values)
vertex += j + " ";
console.log(i + " -> " + vertex);
}
}

}


const example = () => {
let g = new Graph()
g.addVertex(1)
g.addVertex(2)
g.addVertex(3)
g.addEdge(1, 2)
g.addEdge(1, 3)
g.printGraph()
}
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