AlgoDaily - Find Deletion Distance

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var assert = require('assert');
​
function deletionDistance(str1, str2) {
  return '';
}
​
class Graph {
  constructor() {
    this.adjacencyList = new Map();
    this.verticesCount = 0;
  }
​
  addVertex(nodeVal) {
    this.adjacencyList.set(nodeVal, []);
    this.verticesCount++;
  }
​
  addEdge(src, dest) {
    this.adjacencyList.get(src).push(dest);
    this.adjacencyList.get(dest).push(src);
    // push to both adjacency lists
  }
​
  removeVertex(val) {
    if (this.adjacencyList.get(val)) {
      this.adjacencyList.delete(val);
    }

OUTPUT

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