题目链接
给2个数求最大公约数
代码:
import java.io.*;
import java.util.*;
public class Main
{
public static void main(String args[]) throws Exception
{
Scanner cin=new Scanner(System.in);
int a=cin.nextInt(),b=cin.nextInt();
System.out.println(GCD(a,b));
}
public static int GCD(int a, int b) {
if (b==0) return a;
return GCD(b,a%b);
}
}
错点:
1.import要加进去,最外层要命名为Main;