递归解决组合问题

【递归解决组合问题】比如从5个当中选2个

import java.util.Scanner; /** * Created by junyi.pc on 2017/1/25. */public class Main {public static int f(int n,int m){ if(n

运行结果
C:\java\jdk1.8.0_25\bin\java -Didea.launcher.port=7533 "-Didea.launcher.bin.path=C:\Program Files (x86)\JetBrains\IntelliJ IDEA Community Edition 2016.1\bin" -Dfile.encoding=UTF-8 -classpath "C:\java\jdk1.8.0_25\jre\lib\charsets.jar; C:\java\jdk1.8.0_25\jre\lib\deploy.jar; C:\java\jdk1.8.0_25\jre\lib\ext\access-bridge-64.jar; C:\java\jdk1.8.0_25\jre\lib\ext\cldrdata.jar; C:\java\jdk1.8.0_25\jre\lib\ext\dnsns.jar; C:\java\jdk1.8.0_25\jre\lib\ext\jaccess.jar; C:\java\jdk1.8.0_25\jre\lib\ext\jfxrt.jar; C:\java\jdk1.8.0_25\jre\lib\ext\localedata.jar; C:\java\jdk1.8.0_25\jre\lib\ext\nashorn.jar; C:\java\jdk1.8.0_25\jre\lib\ext\sunec.jar; C:\java\jdk1.8.0_25\jre\lib\ext\sunjce_provider.jar; C:\java\jdk1.8.0_25\jre\lib\ext\sunmscapi.jar; C:\java\jdk1.8.0_25\jre\lib\ext\sunpkcs11.jar; C:\java\jdk1.8.0_25\jre\lib\ext\zipfs.jar; C:\java\jdk1.8.0_25\jre\lib\javaws.jar; C:\java\jdk1.8.0_25\jre\lib\jce.jar; C:\java\jdk1.8.0_25\jre\lib\jfr.jar; C:\java\jdk1.8.0_25\jre\lib\jfxswt.jar; C:\java\jdk1.8.0_25\jre\lib\jsse.jar; C:\java\jdk1.8.0_25\jre\lib\management-agent.jar; C:\java\jdk1.8.0_25\jre\lib\plugin.jar; C:\java\jdk1.8.0_25\jre\lib\resources.jar; C:\java\jdk1.8.0_25\jre\lib\rt.jar; C:\Users\junyi.pc\Desktop\client\out\production\client; C:\Program Files (x86)\JetBrains\IntelliJ IDEA Community Edition 2016.1\lib\idea_rt.jar" com.intellij.rt.execution.application.AppMain Main 10 Process finished with exit code 0

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