es1

Algoritmi_2/Laboratorio/Lab7/.idea/workspace.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="AutoImportSettings">
+    <option name="autoReloadType" value="SELECTIVE" />
+  </component>
+  <component name="ChangeListManager">
+    <list default="true" id="a31b5e32-c084-4369-aff9-c8f29c58e800" name="Changes" comment="" />
+    <option name="SHOW_DIALOG" value="false" />
+    <option name="HIGHLIGHT_CONFLICTS" value="true" />
+    <option name="HIGHLIGHT_NON_ACTIVE_CHANGELIST" value="false" />
+    <option name="LAST_RESOLUTION" value="IGNORE" />
+  </component>
+  <component name="FileTemplateManagerImpl">
+    <option name="RECENT_TEMPLATES">
+      <list>
+        <option value="Class" />
+      </list>
+    </option>
+  </component>
+  <component name="FormatOnSaveOptions">
+    <option name="myRunOnSave" value="true" />
+  </component>
+  <component name="Git.Settings">
+    <option name="RECENT_GIT_ROOT_PATH" value="$PROJECT_DIR$/../../.." />
+  </component>
+  <component name="ProjectColorInfo"><![CDATA[{
+  "associatedIndex": 0
+}]]></component>
+  <component name="ProjectId" id="2g5W2DLevjbbNliwOwRtooQA3lb" />
+  <component name="ProjectViewState">
+    <option name="hideEmptyMiddlePackages" value="true" />
+    <option name="showLibraryContents" value="true" />
+  </component>
+  <component name="PropertiesComponent"><![CDATA[{
+  "keyToString": {
+    "ASKED_ADD_EXTERNAL_FILES": "true",
+    "Downloaded.Files.Path.Enabled": "false",
+    "Repository.Attach.Annotations": "false",
+    "Repository.Attach.JavaDocs": "false",
+    "Repository.Attach.Sources": "false",
+    "RunOnceActivity.OpenProjectViewOnStart": "true",
+    "RunOnceActivity.ShowReadmeOnStart": "true",
+    "git-widget-placeholder": "main",
+    "last_opened_file_path": "/home/20050114/Documents/appunti/Algoritmi_2/Laboratorio/graphLib.jar",
+    "project.structure.last.edited": "Modules",
+    "project.structure.proportion": "0.0",
+    "project.structure.side.proportion": "0.2",
+    "settings.editor.selected.configurable": "actions.on.save"
+  }
+}]]></component>
+  <component name="RunManager" selected="JUnit.testPrim">
+    <configuration name="testPrim" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="Lab7" />
+      <option name="PACKAGE_NAME" value="" />
+      <option name="MAIN_CLASS_NAME" value="testPrim" />
+      <option name="TEST_OBJECT" value="class" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <configuration name="testPrim.testMST" type="JUnit" factoryName="JUnit" temporary="true" nameIsGenerated="true">
+      <module name="Lab7" />
+      <option name="PACKAGE_NAME" value="" />
+      <option name="MAIN_CLASS_NAME" value="testPrim" />
+      <option name="METHOD_NAME" value="testMST" />
+      <option name="TEST_OBJECT" value="method" />
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
+    <recent_temporary>
+      <list>
+        <item itemvalue="JUnit.testPrim" />
+        <item itemvalue="JUnit.testPrim.testMST" />
+      </list>
+    </recent_temporary>
+  </component>
+  <component name="SpellCheckerSettings" RuntimeDictionaries="0" Folders="0" CustomDictionaries="0" DefaultDictionary="application-level" UseSingleDictionary="true" transferred="true" />
+  <component name="TaskManager">
+    <task active="true" id="Default" summary="Default task">
+      <changelist id="a31b5e32-c084-4369-aff9-c8f29c58e800" name="Changes" comment="" />
+      <created>1714987711704</created>
+      <option name="number" value="Default" />
+      <option name="presentableId" value="Default" />
+      <updated>1714987711704</updated>
+    </task>
+    <servers />
+  </component>
+</project>
\ No newline at end of file

Algoritmi_2/Laboratorio/Lab9/.gitignore

+### IntelliJ IDEA ###
+out/
+!**/src/main/**/out/
+!**/src/test/**/out/
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+bin/
+!**/src/main/**/bin/
+!**/src/test/**/bin/
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store
\ No newline at end of file

Algoritmi_2/Laboratorio/Lab9/.idea/.gitignore

+# Default ignored files
+/shelf/
+/workspace.xml

Algoritmi_2/Laboratorio/Lab9/.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_21" default="true" project-jdk-name="openjdk-21" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>
\ No newline at end of file

Algoritmi_2/Laboratorio/Lab9/.idea/modules.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectModuleManager">
+    <modules>
+      <module fileurl="file://$PROJECT_DIR$/Lab9.iml" filepath="$PROJECT_DIR$/Lab9.iml" />
+    </modules>
+  </component>
+</project>
\ No newline at end of file

Algoritmi_2/Laboratorio/Lab9/.idea/vcs.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$/../../.." vcs="Git" />
+  </component>
+</project>
\ No newline at end of file

Algoritmi_2/Laboratorio/Lab9/Lab9.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="NewModuleRootManager" inherit-compiler-output="true">
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/Test" isTestSource="true" />
+      <sourceFolder url="file://$MODULE_DIR$/src" isTestSource="false" />
+    </content>
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="module-library" exported="">
+      <library>
+        <CLASSES>
+          <root url="jar://$MODULE_DIR$/../graphLib.jar!/" />
+        </CLASSES>
+        <JAVADOC>
+          <root url="jar://$MODULE_DIR$/../graphLib.jar!/doc" />
+        </JAVADOC>
+        <SOURCES />
+      </library>
+    </orderEntry>
+    <orderEntry type="module-library" scope="TEST">
+      <library name="JUnit5.8.1">
+        <CLASSES>
+          <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter/5.8.1/junit-jupiter-5.8.1.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-api/5.8.1/junit-jupiter-api-5.8.1.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/opentest4j/opentest4j/1.2.0/opentest4j-1.2.0.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-commons/1.8.1/junit-platform-commons-1.8.1.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/apiguardian/apiguardian-api/1.1.2/apiguardian-api-1.1.2.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-params/5.8.1/junit-jupiter-params-5.8.1.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/junit/jupiter/junit-jupiter-engine/5.8.1/junit-jupiter-engine-5.8.1.jar!/" />
+          <root url="jar://$MAVEN_REPOSITORY$/org/junit/platform/junit-platform-engine/1.8.1/junit-platform-engine-1.8.1.jar!/" />
+        </CLASSES>
+        <JAVADOC />
+        <SOURCES />
+      </library>
+    </orderEntry>
+  </component>
+</module>
\ No newline at end of file

Algoritmi_2/Laboratorio/Lab9/Test/testFracKnapsack.java

+import org.junit.jupiter.api.Assertions;
+import org.junit.jupiter.api.Test;
+
+public class testFracKnapsack {
+    @Test
+    void testCreate() {
+        double capacity = 10;
+        double[] volume = new double[(int) capacity];
+        double[] value = new double[(int) capacity];
+
+        for (int i = 0; i < capacity; ++i) {
+            volume[i] = i * 10;
+            value[i] = i * 2.2;
+        }
+
+        FracKnapsack knapsack = new FracKnapsack(capacity, volume, value);
+        Assertions.assertNotNull(knapsack);
+    }
+
+    @Test
+    void testOneElement() {
+        //capacità > volume elemento
+        double capacity = 7;
+        double[] volume = new double[(int) capacity];
+        double[] value = new double[(int) capacity];
+
+        value[0] = 10;
+        volume[0] = 3;
+
+        FracKnapsack knapsack = new FracKnapsack(capacity, volume, value);
+
+        Assertions.assertEquals(10, knapsack.maxVal());
+        Assertions.assertEquals(1, knapsack.dose(0));
+
+        //capacità < volume elemento
+        capacity = 2;
+        value[0] = 10;
+        volume[0] = 4;
+
+        FracKnapsack knapsack2 = new FracKnapsack(capacity, volume, value);
+
+        Assertions.assertEquals(5, knapsack2.maxVal());
+        Assertions.assertEquals(0.5, knapsack2.dose(0));
+    }
+
+
+    @Test
+    void testThreeElements() {
+        //1 test in cui somma di tutti i volumi < capacità
+        //es: valori = 2,5,1; volumi = 3,2,4; capacita = 10; quindi dosi= 1,1,1 valoreMassimo = 8
+
+        double capacity = 10;
+        double[] volume = new double[(int) capacity];
+        double[] value = new double[(int) capacity];
+
+        value[0] = 2;
+        value[1] = 5;
+        value[2] = 1;
+
+        volume[0] = 3;
+        volume[1] = 2;
+        volume[2] = 4;
+
+        FracKnapsack knapsack = new FracKnapsack(capacity, volume, value);
+
+        Assertions.assertEquals(8, knapsack.maxVal());
+        for (int i = 0; i < 3; ++i) {
+            Assertions.assertEquals(1, knapsack.dose(i));
+        }
+
+
+        //1 test in cui si prende solo parte di un elemento
+        //(es: valori = 10,2,0.5; volumi = 70,12,3; capacita = 3;
+        //le soluzioni ottimali sono due: (0, 0.25, 0) oppure (0, 0, 1); valoreMassimo = 0.5)
+        capacity = 3;
+
+        value[0] = 10;
+        value[1] = 2;
+        value[2] = 0.5;
+
+        volume[0] = 70;
+        volume[1] = 12;
+        volume[2] = 3;
+
+        FracKnapsack knapsack2 = new FracKnapsack(capacity, volume, value);
+
+        Assertions.assertEquals(0.5, knapsack2.maxVal());
+        Assertions.assertTrue((knapsack2.dose(0) == 0 && knapsack2.dose(1) == 0.25 && knapsack2.dose(2) == 0) || ((knapsack2.dose(0) == 0) && knapsack2.dose(1) == 0) && knapsack2.dose(2) == 1);
+
+        //es: valori = 5,3,1; volumi = 4,3,4; capacita = 10;
+        //quindi dosi= 1.0 1.0 0.75 valoreMassimo = 8.75)
+
+        capacity = 10;
+
+        value[0] = 5;
+        value[1] = 3;
+        value[2] = 1;
+
+        volume[0] = 4;
+        volume[1] = 3;
+        volume[2] = 4;
+
+        FracKnapsack knapsack3 = new FracKnapsack(capacity, volume, value);
+
+        Assertions.assertEquals(8.75, knapsack3.maxVal());
+        Assertions.assertTrue(knapsack3.dose(0) == 1.0 && knapsack3.dose(1) == 1.0 && knapsack3.dose(2) == 0.75);
+    }
+}

Algoritmi_2/Laboratorio/Lab9/src/FracKnapsack.java

+import it.uniupo.algoTools.MaxHeap;
+
+import java.util.Arrays;
+
+public class FracKnapsack {
+
+    private final double capacity;
+    private final double[] volume;
+    private final double[] value;
+
+    public FracKnapsack(double capacity, double[] volume, double[] value) {
+        this.capacity = capacity;
+        this.volume = volume;
+        this.value = value;
+    }
+
+    private double fracKnapsackImpl(double[] dose, double[] quant) {
+        double valTot = 0;
+        double remaningSpace = capacity;
+
+        MaxHeap<Integer, Double> maxHeap = new MaxHeap<>();
+
+        for (int i = 0; i < dose.length; ++i) {
+            maxHeap.add(i, value[i] / volume[i]);
+        }
+
+        while (!maxHeap.isEmpty() && remaningSpace > 0) {
+            // Estraggo il materiale con valore unitario massimo
+            int extractedMaterial = maxHeap.extractMax();
+
+            //Se posso prendererlo tutto senza riempite lo zaiono lo prendo tutto
+            if (remaningSpace >= volume[extractedMaterial]) {
+                dose[extractedMaterial] = 1;
+                quant[extractedMaterial] = volume[extractedMaterial];
+                valTot += value[extractedMaterial];
+            }
+            //Altrimenti ne prendo una frazione
+            else {
+                dose[extractedMaterial] = remaningSpace / volume[extractedMaterial];
+                quant[extractedMaterial] = remaningSpace;
+                valTot += (value[extractedMaterial] * dose[extractedMaterial]);
+            }
+            remaningSpace -= quant[extractedMaterial];
+        }
+        return valTot;
+    }
+
+    public double maxVal() {
+        double[] dose = new double[volume.length];
+        double[] quant = new double[volume.length];
+
+        return fracKnapsackImpl(dose, quant);
+    }
+
+    public double dose(int i) {
+        if (i < 0 || i > volume.length) {
+            throw new IllegalArgumentException("Valore di dose inserito errato");
+        }
+        double[] dose = new double[volume.length];
+        double[] quant = new double[volume.length];
+
+        fracKnapsackImpl(dose, quant);
+        return dose[i];
+    }
+
+    public boolean more(int i, int j) {
+        if ((i < 0 || i > volume.length) || (j < 0 || j > volume.length)) {
+            throw new IllegalArgumentException("Valore di dose inserito errato");
+        }
+        double[] dose = new double[volume.length];
+        double[] quant = new double[volume.length];
+
+        fracKnapsackImpl(dose, quant);
+        return quant[i] > quant[j];
+    }
+}

Algoritmi_2/Laboratorio/Lab9/src/Main.java

+public class Main {
+    public static void main(String[] args) {
+        System.out.println("Hello world!");
+    }
+}
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