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 | package algs52;
import stdlib.*;
public class XTrieTimer {
  public static void main(String[] args) {
    //final String buildFilename = "data/shells.txt";
    //final String buildFilename = "data/leipzig1M.txt";
    String buildFilename = "data/mobydick.txt";
    //final String searchFilename = buildFilename;
    //final String searchFilename = "data/mobydick.txt";
    String searchFilename = "data/leipzig1M.txt";
    //final RedBlackBST<String,Object> st = new RedBlackBST<>();
    //final SeparateChainingHashST<String,Object> st = new SeparateChainingHashST<>();
    TST<Object> st = new TST<>();
    //final LinearProbingHashST<String,Object> st = new LinearProbingHashST<>();
    // read in strings and add to set
    Object nullObject = new Object();
    In buildFile = new In (buildFilename);
    Stopwatch buildTimer = new Stopwatch();
    while (!buildFile.isEmpty()) {
      String key = buildFile.readString();
      if (!st.contains(key)) {
        st.put(key, nullObject);
        //StdOut.println(key);
      }
    }
    StdOut.format ("build time:  %8.5f\n", buildTimer.elapsedTime ());
    // read in strings and check membership
    In searchFile = new In (searchFilename);
    Stopwatch searchTimer = new Stopwatch();
    int hits = 0;
    int misses = 0;
    while (!searchFile.isEmpty()) {
      String key = searchFile.readString();
      if (st.contains(key)) hits++;
      else                  misses++;
    }
    StdOut.format ("search time: %8.5f\n", searchTimer.elapsedTime ());
    StdOut.format ("hits:   %13d\n", hits);
    StdOut.format ("misses: %13d\n", misses);
  }
}
 |