package algs14;
import java.util.*;
import stdlib.*;
public class PlaygroundIndexing { 
  public static void main (String[] args) {
    ArrayList<Integer> array =  new ArrayList<>();
    LinkedList<Integer> linked =  new LinkedList<>();
    int size = 60_000_000;
    for (int i=1; i<=size; i++) {
      array.add(i);
      linked.add(i);
    }
    
    int MIN = 256;
    int MAX = size;
    double prevTime = performanceLinked (linked, MIN);
    for (int N = MIN*2; N <= MAX; N=N*2) {
      double time = performanceLinked (linked, N);
      StdOut.format ("Linked elapsed count N=%,13d [%10.3f : %10.3f]\n", N, time, time/prevTime);
      prevTime = time;
    }

    MIN = 256;
    MAX = size;
    prevTime = performanceArray (array, MIN);
    for (int N = MIN*2; N <= MAX; N=N*2) {
      double time = performanceArray (array, N);
      StdOut.format ("Array  elapsed count N=%,13d [%10.3f : %10.3f]\n", N, time, time/prevTime);
      prevTime = time;
    }
  }
  private static double performanceLinked (LinkedList<Integer> linked, int N) {
    Stopwatch sw = new Stopwatch ();
    linked.get(N);
    return sw.elapsedTime ();
  }
  private static double performanceArray (ArrayList<Integer> linked, int N) {
    Stopwatch sw = new Stopwatch ();
    linked.get(N);
    return sw.elapsedTime ();
  }
  
}