Created
April 3, 2019 20:26
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Simple graph
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class Graph { | |
constructor(numberOfVertices) { | |
this.size = numberOfVertices; | |
this.list = new Map(); | |
} | |
addVertex(v) { | |
this.list.set(v, []); | |
} | |
addEdge(v, w) { | |
this.list.get(v).push(w); | |
this.list.get(w).push(v); | |
} | |
printGraph() { | |
const keys = this.list.keys(); | |
for (let k of keys) { | |
const values = this.list.get(k); | |
let str = ""; | |
for (let v of values) { | |
str += v + " "; | |
} | |
console.log(k, " -> ", str); | |
} | |
} | |
bfs(v) { | |
const visited = {}; | |
const q = []; | |
visited[v] = true; | |
q.push(v); | |
while(q.length) { | |
const current = q.shift(); | |
console.log(current); | |
const adjacent = this.list.get(current); | |
for (let v in adjacent) { | |
const neighbor = adjacent[v]; | |
if (!visited[neighbor]) { | |
visited[neighbor] = true; | |
q.push(neighbor); | |
} | |
} | |
} | |
} | |
dfs(v) { | |
const visited = {}; | |
this.depthSearch(v, visited); | |
} | |
depthSearch(current, visited) { | |
visited[current] = true; | |
console.log(current); | |
const adjacent = this.list.get(current); | |
for (let v in adjacent) { | |
const neighbor = adjacent[v]; | |
if (!visited[neighbor]) { | |
this.depthSearch(neighbor, visited); | |
} | |
} | |
} | |
} | |
const g = new Graph(6); | |
g.addVertex("A"); | |
g.addVertex("B"); | |
g.addVertex("C"); | |
g.addVertex("D"); | |
g.addVertex("E"); | |
g.addVertex("F"); | |
g.addEdge('A', 'B'); | |
g.addEdge('A', 'D'); | |
g.addEdge('A', 'E'); | |
g.addEdge('B', 'C'); | |
g.addEdge('D', 'E'); | |
g.addEdge('E', 'F'); | |
g.addEdge('E', 'C'); | |
g.addEdge('C', 'F'); | |
g.dfs('A'); |
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