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TestingTrees3.java
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import java.util.ArrayList;
import java.util.Collections;
import java.util.Random;
import java.util.concurrent.TimeUnit;
import java.util.TreeMap;
public class TestingTrees3 {
public static void main(String[] args) {
BinarySearchTree bst;
ZipTree zt;
AVLTree avlt;
SkipList<Integer> slt;
Random randomGen = new Random();
ArrayList<Integer> rand = new ArrayList<Integer>();
int avgBSTLevels = 0;
int avgZTLevels = 0;
int avgAVLTLevels = 0;
int avgSLTLevels = 0;
long avgBSTTime = 0;
long avgZTTime = 0;
long avgAVLTTime = 0;
long avgSLTTime = 0;
long startTime = 0;
System.out.println("-------------------DELETION TEST--------------------");
System.out.println("| |");
for (int j = 0; j < 100; j++) {
for (int i = 0; i < 50; i++) {
rand.add(i);
rand.add(i + 50);
}
Collections.shuffle(rand);
bst = new BinarySearchTree();
zt = new ZipTree();
avlt = new AVLTree();
slt = new SkipList<Integer>();
for (int i = 0; i < rand.size(); i++) {
bst.insert(rand.get(i));
}
for (int i = 0; i < rand.size(); i++) {
zt.insert(rand.get(i));
}
for (int i = 0; i < rand.size(); i++) {
avlt.insert(rand.get(i));
}
for(int i = 0; i < rand.size(); i++) {
slt.insert(rand.get(i));
}
avgBSTLevels += bst.printHeight(bst.root);
avgZTLevels += zt.printHeight(zt.root);
avgAVLTLevels += avlt.printHeight(avlt.root);
avgSLTLevels += slt.printHeight();
Collections.shuffle(rand);
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
bst.delete(rand.get(i));
}
avgBSTTime += System.nanoTime() - startTime;
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
zt.delete(rand.get(i));
}
avgZTTime += System.nanoTime() - startTime;
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
avlt.delete(rand.get(i));
}
avgAVLTTime += System.nanoTime() - startTime;
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
slt.remove(rand.get(i));
}
avgSLTTime += System.nanoTime() - startTime;
rand.clear();
}
avgBSTLevels = avgBSTLevels / 100;
avgZTLevels = avgZTLevels / 100;
avgAVLTLevels = avgAVLTLevels / 100;
avgSLTLevels = avgSLTLevels / 100;
avgBSTTime = avgBSTTime / (long)100;
avgZTTime = avgZTTime / (long)100;
avgAVLTTime = avgAVLTTime / (long)100;
avgSLTTime = avgSLTTime / (long)100;
avgBSTTime /= 1000;
avgZTTime /= 1000;
avgAVLTTime /= 1000;
avgSLTTime /= 1000;
System.out.println("| ------------------100 Elements------------------ |");
System.out.printf("| |%11s %16s %17s| |\n", "", "Avg # of Levels", "Avg Time Taken");
System.out.println("| |----------------------------------------------| |");
System.out.printf("| |%11s %16d %17d| |\n", "BST", avgBSTLevels, avgBSTTime);
System.out.printf("| |%11s %16d %17d| |\n", "ZT", avgZTLevels, avgZTTime);
System.out.printf("| |%11s %16d %17d| |\n", "AVLT", avgAVLTLevels, avgAVLTTime);
System.out.printf("| |%11s %16d %17d| |\n", "SLT", avgSLTLevels, avgSLTTime);
System.out.println("| ------------------------------------------------ |");
System.out.println("| |");
randomGen = new Random();
rand = new ArrayList<Integer>();
avgBSTLevels = 0;
avgZTLevels = 0;
avgAVLTLevels = 0;
avgSLTLevels = 0;
avgBSTTime = 0;
avgZTTime = 0;
avgAVLTTime = 0;
avgSLTTime = 0;
startTime = 0;
for (int j = 0; j < 100; j++) {
for (int i = 0; i < 5000; i++) {
rand.add(i);
rand.add(i + 5000);
}
Collections.shuffle(rand);
bst = new BinarySearchTree();
zt = new ZipTree();
avlt = new AVLTree();
slt = new SkipList<Integer>();
for (int i = 0; i < rand.size(); i++) {
bst.insert(rand.get(i));
}
for (int i = 0; i < rand.size(); i++) {
zt.insert(rand.get(i));
}
for (int i = 0; i < rand.size(); i++) {
avlt.insert(rand.get(i));
}
for (int i = 0; i < rand.size(); i++) {
slt.insert(rand.get(i));
}
avgBSTLevels += bst.printHeight(bst.root);
avgZTLevels += zt.printHeight(zt.root);
avgAVLTLevels += avlt.printHeight(avlt.root);
avgSLTLevels += slt.printHeight();
Collections.shuffle(rand);
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
bst.delete(rand.get(i));
}
avgBSTTime += System.nanoTime() - startTime;
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
zt.delete(rand.get(i));
}
avgZTTime += System.nanoTime() - startTime;
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
avlt.delete(rand.get(i));
}
avgAVLTTime += System.nanoTime() - startTime;
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
slt.remove(rand.get(i));
}
avgSLTTime += System.nanoTime() - startTime;
rand.clear();
}
avgBSTLevels = avgBSTLevels / 100;
avgZTLevels = avgZTLevels / 100;
avgAVLTLevels = avgAVLTLevels / 100;
avgSLTLevels = avgSLTLevels / 100;
avgBSTTime = avgBSTTime / (long)100;
avgZTTime = avgZTTime / (long)100;
avgAVLTTime = avgAVLTTime / (long)100;
avgSLTTime = avgSLTTime / (long)100;
avgBSTTime /= 1000;
avgZTTime /= 1000;
avgAVLTTime /= 1000;
avgSLTTime /= 1000;
System.out.println("| -----------------10000 Elements----------------- |");
System.out.printf("| |%11s %16s %17s| |\n", "", "Avg # of Levels", "Avg Time Taken");
System.out.println("| |----------------------------------------------| |");
System.out.printf("| |%11s %16d %17d| |\n", "BST", avgBSTLevels, avgBSTTime);
System.out.printf("| |%11s %16d %17d| |\n", "ZT", avgZTLevels, avgZTTime);
System.out.printf("| |%11s %16d %17d| |\n", "AVLT", avgAVLTLevels, avgAVLTTime);
System.out.printf("| |%11s %16d %17d| |\n", "SLT", avgSLTLevels, avgSLTTime);
System.out.println("| ------------------------------------------------ |");
System.out.println("| |");
randomGen = new Random();
rand = new ArrayList<Integer>();
avgBSTLevels = 0;
avgZTLevels = 0;
avgAVLTLevels = 0;
avgSLTLevels = 0;
avgBSTTime = 0;
avgZTTime = 0;
avgAVLTTime = 0;
avgSLTTime = 0;
startTime = 0;
for (int j = 0; j < 100; j++) {
for (int i = 0; i < 500000; i++) {
rand.add(i);
rand.add(i + 500000);
}
Collections.shuffle(rand);
bst = new BinarySearchTree();
zt = new ZipTree();
avlt = new AVLTree();
slt = new SkipList<Integer>();
for (int i = 0; i < rand.size(); i++) {
bst.insert(rand.get(i));
}
for (int i = 0; i < rand.size(); i++) {
zt.insert(rand.get(i));
}
for (int i = 0; i < rand.size(); i++) {
avlt.insert(rand.get(i));
}
for (int i = 0; i < rand.size(); i++) {
slt.insert(rand.get(i));
}
avgBSTLevels += bst.printHeight(bst.root);
avgZTLevels += zt.printHeight(zt.root);
avgAVLTLevels += avlt.printHeight(avlt.root);
avgSLTLevels += slt.printHeight();
Collections.shuffle(rand);
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
bst.delete(rand.get(i));
}
avgBSTTime += System.nanoTime() - startTime;
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
zt.delete(rand.get(i));
}
avgZTTime += System.nanoTime() - startTime;
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
avlt.delete(rand.get(i));
}
avgAVLTTime += System.nanoTime() - startTime;
startTime = System.nanoTime();
for(int i = 0; i < rand.size(); i++) {
slt.remove(rand.get(i));
}
avgSLTTime += System.nanoTime() - startTime;
rand.clear();
}
avgBSTLevels = avgBSTLevels / 100;
avgZTLevels = avgZTLevels / 100;
avgAVLTLevels = avgAVLTLevels / 100;
avgSLTLevels = avgSLTLevels / 100;
avgBSTTime = avgBSTTime / (long)100;
avgZTTime = avgZTTime / (long)100;
avgAVLTTime = avgAVLTTime / (long)100;
avgSLTTime = avgSLTTime / (long)100;
avgBSTTime /= 1000;
avgZTTime /= 1000;
avgAVLTTime /= 1000;
avgSLTTime /= 1000;
System.out.println("| ----------------1000000 Elements---------------- |");
System.out.printf("| |%11s %16s %17s| |\n", "", "Avg # of Levels", "Avg Time Taken");
System.out.println("| |----------------------------------------------| |");
System.out.printf("| |%11s %16d %17d| |\n", "BST", avgBSTLevels, avgBSTTime);
System.out.printf("| |%11s %16d %17d| |\n", "ZT", avgZTLevels, avgZTTime);
System.out.printf("| |%11s %16d %17d| |\n", "AVLT", avgAVLTLevels, avgAVLTTime);
System.out.printf("| |%11s %16d %17d| |\n", "SLT", avgSLTLevels, avgSLTTime);
System.out.println("| ------------------------------------------------ |");
System.out.println("| |");
System.out.println("----------------------------------------------------");
}
}