diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index 65427de..4377c26 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -19,8 +19,7 @@
     <select />
   </component>
   <component name="ChangeListManager">
-    <list default="true" id="af7ffdf2-4ddc-4ed6-8222-60ed5acbc2ed" name="Default Changelist" comment="update">
-      <change afterPath="$PROJECT_DIR$/src/数组操作/q581_最短无序连续子数组/Solution.java" afterDir="false" />
+    <list default="true" id="af7ffdf2-4ddc-4ed6-8222-60ed5acbc2ed" name="Default Changelist" comment="add q581">
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
@@ -97,14 +96,7 @@
       <recent name="$PROJECT_DIR$/src/q206/f1" />
     </key>
   </component>
-  <component name="RunManager" selected="Application.Solution (1)">
-    <configuration name="Main" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
-      <option name="MAIN_CLASS_NAME" value="Main" />
-      <module name="LeetCode" />
-      <method v="2">
-        <option name="Make" enabled="true" />
-      </method>
-    </configuration>
+  <component name="RunManager" selected="Application.Test (1)">
     <configuration name="Solution (1)" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
       <option name="MAIN_CLASS_NAME" value="数组操作.q581_最短无序连续子数组.Solution" />
       <module name="LeetCode" />
@@ -183,6 +175,19 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
+    <configuration name="Test (1)" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="其他.tx.Test" />
+      <module name="LeetCode" />
+      <extension name="coverage">
+        <pattern>
+          <option name="PATTERN" value="其他.tx.*" />
+          <option name="ENABLED" value="true" />
+        </pattern>
+      </extension>
+      <method v="2">
+        <option name="Make" enabled="true" />
+      </method>
+    </configuration>
     <configuration name="Test" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
       <option name="MAIN_CLASS_NAME" value="其他.Test" />
       <module name="LeetCode" />
@@ -198,11 +203,11 @@
     </configuration>
     <recent_temporary>
       <list>
+        <item itemvalue="Application.Test (1)" />
         <item itemvalue="Application.Solution (1)" />
         <item itemvalue="Application.Test" />
         <item itemvalue="Application.Solution" />
         <item itemvalue="Application.Solution (2)" />
-        <item itemvalue="Application.Main" />
       </list>
     </recent_temporary>
   </component>
@@ -275,14 +280,7 @@
       <workItem from="1592386773785" duration="664000" />
       <workItem from="1592484855258" duration="5544000" />
       <workItem from="1592798003146" duration="15000" />
-      <workItem from="1592810015972" duration="7998000" />
-    </task>
-    <task id="LOCAL-00024" summary="update Rocket.md">
-      <created>1581858072286</created>
-      <option name="number" value="00024" />
-      <option name="presentableId" value="LOCAL-00024" />
-      <option name="project" value="LOCAL" />
-      <updated>1581858072286</updated>
+      <workItem from="1592810015972" duration="11339000" />
     </task>
     <task id="LOCAL-00025" summary="update Rocket.md">
       <created>1581858428131</created>
@@ -620,7 +618,14 @@
       <option name="project" value="LOCAL" />
       <updated>1592303771862</updated>
     </task>
-    <option name="localTasksCounter" value="73" />
+    <task id="LOCAL-00073" summary="add q581">
+      <created>1592834370217</created>
+      <option name="number" value="00073" />
+      <option name="presentableId" value="LOCAL-00073" />
+      <option name="project" value="LOCAL" />
+      <updated>1592834370220</updated>
+    </task>
+    <option name="localTasksCounter" value="74" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -679,7 +684,6 @@
     <option name="oldMeFiltersMigrated" value="true" />
   </component>
   <component name="VcsManagerConfiguration">
-    <MESSAGE value="add q736" />
     <MESSAGE value="增加操作系统相关问题" />
     <MESSAGE value="增加JVM相关问题" />
     <MESSAGE value="add q141/q202/q258" />
@@ -704,7 +708,8 @@
     <MESSAGE value="增加问题" />
     <MESSAGE value="add q78" />
     <MESSAGE value="update" />
-    <option name="LAST_COMMIT_MESSAGE" value="update" />
+    <MESSAGE value="add q581" />
+    <option name="LAST_COMMIT_MESSAGE" value="add q581" />
   </component>
   <component name="WindowStateProjectService">
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@@ -716,43 +721,43 @@
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+    <state x="218" y="104" width="1317" height="796" key="DiffContextDialog" timestamp="1592882299251">
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+    <state width="2151" height="297" key="GridCell.Tab.0.right" timestamp="1592840996856">
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-    <state width="2151" height="165" key="GridCell.Tab.0.right/0.0.2194.1194@0.0.2194.1194" timestamp="1592832004594" />
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@@ -779,20 +784,21 @@
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+    <state x="657" y="230" key="MultipleFileMergeDialog" timestamp="1592834386039">
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+    <state x="488" y="252" key="Vcs.Push.Dialog.v2" timestamp="1592834418206">
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@@ -810,6 +816,10 @@
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+      <screen x="0" y="0" width="2194" height="1194" />
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