Graph file is changed. Arraylist is used instead of HashMap

.idea/dictionaries/vas.xml

+<component name="ProjectDictionaryState">
+  <dictionary name="vas" />
+</component>
\ No newline at end of file

.idea/inspectionProfiles/Project_Default.xml

+<component name="InspectionProjectProfileManager">
+  <profile version="1.0">
+    <option name="myName" value="Project Default" />
+  </profile>
+</component>
\ No newline at end of file

.idea/misc.xml

+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_1_8" project-jdk-name="1.8" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/classes" />
+  </component>
+</project>
\ No newline at end of file

.idea/modules.xml

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

.idea/vcs.xml

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

shared-memory-maximal-clique.iml

+<?xml version="1.0" encoding="UTF-8"?>
+<module type="JAVA_MODULE" version="4">
+  <component name="EclipseModuleManager">
+    <conelement value="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER" />
+    <src_description expected_position="0">
+      <src_folder value="file://$MODULE_DIR$/src/main/java" expected_position="0" />
+      <src_folder value="file://$MODULE_DIR$/src/test/java" expected_position="1" />
+    </src_description>
+  </component>
+  <component name="NewModuleRootManager">
+    <output url="file://$MODULE_DIR$/target/classes" />
+    <exclude-output />
+    <content url="file://$MODULE_DIR$">
+      <sourceFolder url="file://$MODULE_DIR$/src/main/java" isTestSource="false" />
+      <sourceFolder url="file://$MODULE_DIR$/src/test/java" isTestSource="false" />
+    </content>
+    <orderEntry type="sourceFolder" forTests="false" />
+    <orderEntry type="inheritedJdk" />
+    <orderEntry type="library" name="org.eclipse.m2e.MAVEN2_CLASSPATH_CONTAINER" level="application" />
+  </component>
+</module>
\ No newline at end of file