From a497e67094f461ff147c679532772b525b28cc7e Mon Sep 17 00:00:00 2001
From: yuanguangxin <yuanguangxin@bytedance.com>
Date: Mon, 22 Jun 2020 21:59:30 +0800
Subject: [PATCH] add q581

---
 .idea/workspace.xml                           | 71 +++++++++++--------
 README.md                                     |  1 +
 .../Solution.java                             | 32 +++++++++
 3 files changed, 73 insertions(+), 31 deletions(-)
 create mode 100644 src/数组操作/q581_最短无序连续子数组/Solution.java

diff --git a/.idea/workspace.xml b/.idea/workspace.xml
index a3da4cc..65427de 100644
--- a/.idea/workspace.xml
+++ b/.idea/workspace.xml
@@ -20,8 +20,8 @@
   </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" />
       <change beforePath="$PROJECT_DIR$/.idea/workspace.xml" beforeDir="false" afterPath="$PROJECT_DIR$/.idea/workspace.xml" afterDir="false" />
-      <change beforePath="$PROJECT_DIR$/Rocket.md" beforeDir="false" afterPath="$PROJECT_DIR$/Rocket.md" afterDir="false" />
     </list>
     <option name="SHOW_DIALOG" value="false" />
     <option name="HIGHLIGHT_CONFLICTS" value="true" />
@@ -84,11 +84,11 @@
   </component>
   <component name="RecentsManager">
     <key name="CopyClassDialog.RECENTS_KEY">
+      <recent name="链表操作.q25_K个一组翻转链表" />
       <recent name="contest" />
       <recent name="链表操作.q61_旋转链表" />
       <recent name="链表操作.q19_删除链表的倒数第N个节点" />
       <recent name="递归.q104_二叉树的最大深度" />
-      <recent name="快慢指针遍历.q876_链表的中间结点" />
     </key>
     <key name="CopyFile.RECENT_KEYS">
       <recent name="$PROJECT_DIR$/src/hash相关" />
@@ -97,7 +97,7 @@
       <recent name="$PROJECT_DIR$/src/q206/f1" />
     </key>
   </component>
-  <component name="RunManager" selected="Application.Test">
+  <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" />
@@ -105,12 +105,12 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="Solution (2)" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
-      <option name="MAIN_CLASS_NAME" value="动态规划.q70_爬楼梯.Solution" />
+    <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" />
       <extension name="coverage">
         <pattern>
-          <option name="PATTERN" value="动态规划.q70_爬楼梯.*" />
+          <option name="PATTERN" value="数组操作.q581_最短无序连续子数组.*" />
           <option name="ENABLED" value="true" />
         </pattern>
       </extension>
@@ -118,12 +118,12 @@
         <option name="Make" enabled="true" />
       </method>
     </configuration>
-    <configuration name="Solution (3)" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
-      <option name="MAIN_CLASS_NAME" value="contest.q4.Solution" />
+    <configuration name="Solution (2)" type="Application" factoryName="Application" temporary="true" nameIsGenerated="true">
+      <option name="MAIN_CLASS_NAME" value="动态规划.q70_爬楼梯.Solution" />
       <module name="LeetCode" />
       <extension name="coverage">
         <pattern>
-          <option name="PATTERN" value="contest.q4.*" />
+          <option name="PATTERN" value="动态规划.q70_爬楼梯.*" />
           <option name="ENABLED" value="true" />
         </pattern>
       </extension>
@@ -198,11 +198,11 @@
     </configuration>
     <recent_temporary>
       <list>
+        <item itemvalue="Application.Solution (1)" />
         <item itemvalue="Application.Test" />
         <item itemvalue="Application.Solution" />
         <item itemvalue="Application.Solution (2)" />
         <item itemvalue="Application.Main" />
-        <item itemvalue="Application.Solution (3)" />
       </list>
     </recent_temporary>
   </component>
@@ -271,14 +271,11 @@
       <workItem from="1591713471095" duration="2944000" />
       <workItem from="1591758584495" duration="3000" />
       <workItem from="1592230200964" duration="1933000" />
-      <workItem from="1592291352584" duration="6590000" />
-    </task>
-    <task id="LOCAL-00023" summary="update Rocket.md">
-      <created>1581857522107</created>
-      <option name="number" value="00023" />
-      <option name="presentableId" value="LOCAL-00023" />
-      <option name="project" value="LOCAL" />
-      <updated>1581857522107</updated>
+      <workItem from="1592291352584" duration="7930000" />
+      <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>
@@ -616,7 +613,14 @@
       <option name="project" value="LOCAL" />
       <updated>1591717167748</updated>
     </task>
-    <option name="localTasksCounter" value="72" />
+    <task id="LOCAL-00072" summary="update">
+      <created>1592303771862</created>
+      <option name="number" value="00072" />
+      <option name="presentableId" value="LOCAL-00072" />
+      <option name="project" value="LOCAL" />
+      <updated>1592303771862</updated>
+    </task>
+    <option name="localTasksCounter" value="73" />
     <servers />
   </component>
   <component name="TypeScriptGeneratedFilesManager">
@@ -712,42 +716,43 @@
     </state>
     <state x="303" y="50" key="CommitChangelistDialog2/0.0.1440.900@0.0.1440.900" timestamp="1588749779133" />
     <state x="404" y="60" key="CommitChangelistDialog2/0.0.1920.1080@0.0.1920.1080" timestamp="1591633493160" />
-    <state x="191" y="94" width="1152" height="720" key="DiffContextDialog" timestamp="1591262490778">
-      <screen x="0" y="0" width="1920" height="1080" />
+    <state x="218" y="104" width="1317" height="796" key="DiffContextDialog" timestamp="1592831385217">
+      <screen x="0" y="0" width="2194" height="1194" />
     </state>
     <state x="143" y="78" width="1152" height="720" key="DiffContextDialog/0.0.1440.900@0.0.1440.900" timestamp="1588749770793" />
     <state x="191" y="94" key="DiffContextDialog/0.0.1920.1080@0.0.1920.1080" timestamp="1591262490778" />
+    <state x="218" y="104" width="1317" height="796" key="DiffContextDialog/0.0.2194.1194@0.0.2194.1194" timestamp="1592831385217" />
     <state x="143" y="78" width="1152" height="720" key="DiffContextDialog/0.23.1440.797@0.23.1440.797" timestamp="1588303139733" />
-    <state width="2151" height="333" key="GridCell.Tab.0.bottom" timestamp="1592301525961">
+    <state width="2151" height="165" key="GridCell.Tab.0.bottom" timestamp="1592832004594">
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-    <state width="2151" height="333" key="GridCell.Tab.0.bottom/0.0.2194.1194@0.0.2194.1194" timestamp="1592301525961" />
+    <state width="2151" height="165" key="GridCell.Tab.0.bottom/0.0.2194.1194@0.0.2194.1194" timestamp="1592832004594" />
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+    <state width="2151" height="165" key="GridCell.Tab.0.center" timestamp="1592832004594">
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     <state width="1398" height="204" key="GridCell.Tab.0.center/0.0.1440.900@0.0.1440.900" timestamp="1587225087587" />
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-    <state width="2151" height="333" key="GridCell.Tab.0.center/0.0.2194.1194@0.0.2194.1194" timestamp="1592301525961" />
+    <state width="2151" height="165" key="GridCell.Tab.0.center/0.0.2194.1194@0.0.2194.1194" timestamp="1592832004594" />
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-    <state width="2151" height="333" key="GridCell.Tab.0.left" timestamp="1592301525961">
+    <state width="2151" height="165" key="GridCell.Tab.0.left" timestamp="1592832004594">
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     <state width="1398" height="204" key="GridCell.Tab.0.left/0.0.1440.900@0.0.1440.900" timestamp="1587225087586" />
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-    <state width="2151" height="333" key="GridCell.Tab.0.left/0.0.2194.1194@0.0.2194.1194" timestamp="1592301525961" />
+    <state width="2151" height="165" key="GridCell.Tab.0.left/0.0.2194.1194@0.0.2194.1194" timestamp="1592832004594" />
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-    <state width="2151" height="333" key="GridCell.Tab.0.right" timestamp="1592301525961">
+    <state width="2151" height="165" key="GridCell.Tab.0.right" timestamp="1592832004594">
       <screen x="0" y="0" width="2194" height="1194" />
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     <state width="1398" height="204" key="GridCell.Tab.0.right/0.0.1440.900@0.0.1440.900" timestamp="1587225087587" />
     <state width="1878" height="380" key="GridCell.Tab.0.right/0.0.1920.1080@0.0.1920.1080" timestamp="1591595634375" />
-    <state width="2151" height="333" key="GridCell.Tab.0.right/0.0.2194.1194@0.0.2194.1194" timestamp="1592301525961" />
+    <state width="2151" height="165" key="GridCell.Tab.0.right/0.0.2194.1194@0.0.2194.1194" timestamp="1592832004594" />
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@@ -782,12 +787,12 @@
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+    <state x="488" y="252" key="Vcs.Push.Dialog.v2" timestamp="1592303774722">
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-    <state x="488" y="252" key="Vcs.Push.Dialog.v2/0.0.2194.1194@0.0.2194.1194" timestamp="1591717170083" />
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@@ -805,6 +810,10 @@
     </state>
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     <state x="504" y="248" width="911" height="584" key="find.popup/0.0.1920.1080@0.0.1920.1080" timestamp="1591635370753" />
+    <state x="754" y="279" key="run.anything.popup" timestamp="1592830659233">
+      <screen x="0" y="0" width="2194" height="1194" />
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+    <state x="754" y="279" key="run.anything.popup/0.0.2194.1194@0.0.2194.1194" timestamp="1592830659233" />
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diff --git a/README.md b/README.md
index 6cea521..0a53dee 100644
--- a/README.md
+++ b/README.md
@@ -55,6 +55,7 @@
 * [q54_螺旋矩阵](/src/数组操作/q54_螺旋矩阵)
 * [q73_矩阵置零](/src/数组操作/q73_矩阵置零)
 * [q78_子集](/src/数组操作/q78_子集)
+* [q581_最短无序连续子数组](/src/数组操作/q581_最短无序连续子数组)
 * [q945_使数组唯一的最小增量](/src/数组操作/q945_使数组唯一的最小增量)
 
 ### 栈相关
diff --git a/src/数组操作/q581_最短无序连续子数组/Solution.java b/src/数组操作/q581_最短无序连续子数组/Solution.java
new file mode 100644
index 0000000..491b5ae
--- /dev/null
+++ b/src/数组操作/q581_最短无序连续子数组/Solution.java
@@ -0,0 +1,32 @@
+package 数组操作.q581_最短无序连续子数组;
+
+import java.util.Arrays;
+
+/**
+ * 利用排序 o(n*log(n))
+ */
+public class Solution {
+
+    public int findUnsortedSubarray(int[] nums) {
+        if (nums == null || nums.length < 1) {
+            return 0;
+        }
+
+        int[] cloneNums = nums.clone();
+        Arrays.sort(nums);
+
+        int begin = Integer.MAX_VALUE;
+        int end = 0;
+        for (int i = 0; i < nums.length; i++) {
+            if (nums[i] != cloneNums[i]) {
+                begin = Math.min(begin, i);
+                end = Math.max(end, i);
+            }
+        }
+        return Math.max(end - begin + 1, 0);
+    }
+
+    public static void main(String[] args) {
+        new Solution().findUnsortedSubarray(new int[]{2, 6, 4, 8, 10, 9, 15});
+    }
+}