init

.gitignore

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+target/
+!.mvn/wrapper/maven-wrapper.jar
+!**/src/main/**/target/
+!**/src/test/**/target/
+
+### IntelliJ IDEA ###
+.idea/modules.xml
+.idea/jarRepositories.xml
+.idea/compiler.xml
+.idea/libraries/
+*.iws
+*.iml
+*.ipr
+
+### Eclipse ###
+.apt_generated
+.classpath
+.factorypath
+.project
+.settings
+.springBeans
+.sts4-cache
+
+### NetBeans ###
+/nbproject/private/
+/nbbuild/
+/dist/
+/nbdist/
+/.nb-gradle/
+build/
+!**/src/main/**/build/
+!**/src/test/**/build/
+
+### VS Code ###
+.vscode/
+
+### Mac OS ###
+.DS_Store

.idea/.gitignore

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+# 默认忽略的文件
+/shelf/
+/workspace.xml
+# 基于编辑器的 HTTP 客户端请求
+/httpRequests/
+# Datasource local storage ignored files
+/dataSources/
+/dataSources.local.xml

.idea/encodings.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="Encoding">
+    <file url="file://$PROJECT_DIR$/src/main/java" charset="UTF-8" />
+    <file url="file://$PROJECT_DIR$/src/main/resources" charset="UTF-8" />
+  </component>
+</project>

.idea/misc.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="ExternalStorageConfigurationManager" enabled="true" />
+  <component name="MavenProjectsManager">
+    <option name="originalFiles">
+      <list>
+        <option value="$PROJECT_DIR$/pom.xml" />
+      </list>
+    </option>
+  </component>
+  <component name="ProjectRootManager" version="2" languageLevel="JDK_17" default="true" project-jdk-name="17" project-jdk-type="JavaSDK">
+    <output url="file://$PROJECT_DIR$/out" />
+  </component>
+</project>

.idea/vcs.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project version="4">
+  <component name="VcsDirectoryMappings">
+    <mapping directory="$PROJECT_DIR$" vcs="Git" />
+  </component>
+</project>

pom.xml

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+<?xml version="1.0" encoding="UTF-8"?>
+<project xmlns="http://maven.apache.org/POM/4.0.0"
+         xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+         xsi:schemaLocation="http://maven.apache.org/POM/4.0.0 http://maven.apache.org/xsd/maven-4.0.0.xsd">
+    <modelVersion>4.0.0</modelVersion>
+
+    <groupId>com.dota</groupId>
+    <artifactId>algorithm</artifactId>
+    <version>1.0-SNAPSHOT</version>
+
+    <properties>
+        <maven.compiler.source>17</maven.compiler.source>
+        <maven.compiler.target>17</maven.compiler.target>
+        <project.build.sourceEncoding>UTF-8</project.build.sourceEncoding>
+    </properties>
+
+</project>

src/main/java/com/dota/Main.java

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+package com.dota;
+
+// 按两次 Shift 打开“随处搜索”对话框并输入 `show whitespaces`，
+// 然后按 Enter 键。现在，您可以在代码中看到空格字符。
+public class Main {
+    public static void main(String[] args) {
+        // 当文本光标位于高亮显示的文本处时按 Alt+Enter，
+        // 可查看 IntelliJ IDEA 对于如何修正该问题的建议。
+        System.out.printf("Hello and welcome!");
+
+        // 按 Shift+F10 或点击装订区域中的绿色箭头按钮以运行脚本。
+        for (int i = 1; i <= 5; i++) {
+
+            // 按 Shift+F9 开始调试代码。我们已为您设置了一个断点，
+            // 但您始终可以通过按 Ctrl+F8 添加更多断点。
+            System.out.println("i = " + i);
+        }
+    }
+}

src/main/java/com/dota/Solution.java

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+package com.dota;
+
+public class Solution {
+    // 1423. 可获得的最大点数
+    public int maxScore(int[] cardPoints, int k) {
+        int max;
+        int n = cardPoints.length;
+        int len = n - k;
+        int sum = 0;
+        for (int cardPoint : cardPoints) {
+            sum += cardPoint;
+        }
+
+
+        int temp = 0;
+        for (int i = 0; i < len; i++) {
+            temp += cardPoints[i];
+        }
+
+        max = temp;
+        for (int i = len; i < n; i++) {
+            temp -= cardPoints[i - len];
+            temp += cardPoints[i];
+            if (temp < max) {
+                max =temp;
+            }
+        }
+
+        return sum - max;
+    }
+}