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import { AdjacencyMatrixUnweightedDirected } from "./adjacency-matrix-unweighted-directed.ts";
/** * Implements the Adjacency Matrix data structure for unweighted undirected graphs. */export class AdjacencyMatrixUnweightedUndirected  extends AdjacencyMatrixUnweightedDirected {  static directed = false;  static getLength(vertices: number): number {    return (((vertices + 1) * vertices) >> 6) + 2;  }  getIndex(x: number, y: number): number {    return x >= y ? y + (((x + 1) * x) >> 1) : x + (((y + 1) * y) >> 1);  }}