import java.util.Scanner;

 public class Student{

     public static void main(String[] args){

         Scanner in=new Scanner(System.in);

         System.out.println("请输入学生的人数");

         int studentsNum=in.nextInt();

         System.out.println("请输入课程数目");

         int coursesNum=in.nextInt();

         //声明数组存储课程

         String[] courses=new String[coursesNum];

         //声明数组存储姓名

         String[] names=new String[studentsNum];

         //声明二维数组存储特定成绩

         double[][] scores=new double[studentsNum][coursesNum];

         //声明数组存储总分

         double[] sum=new double[studentsNum];

         //声明数组存储平均分

         double[] avg=new double[studentsNum];

         //声明数组存储一行

         String[] str=new String[studentsNum];

         //循环给课程数组赋值

         for(int i=0;i<courses.length;i++){

             System.out.println("请输入第"+(i+1)+"门课程是什么");

             courses[i]=in.next();

         }

         //循环给姓名数组和成绩赋值

         for(int i=0;i<names.length;i++){

             System.out.println("请输入第"+(i+1)+"个学生的姓名：");

             names[i]=in.next();

             double s=0;

             String str1="";

             for(int j=0;j<courses.length;j++){

                 System.out.println("请输入"+names[i]+courses[j]+"的成绩：");

                 scores[i][j]=in.nextDouble();

                 s=s+scores[i][j];

                 str1=str1+scores[i][j]+"\t";

             }

             sum[i]=s;

             avg[i]=s/coursesNum;

             str[i]=names[i]+"\t"+str1+sum[i]+"\t"+avg[i]+"\t";

         }

         //按照表格形式输出

         System.out.print("学生\t");

         for(int i=0;i<courses.length;i++){

             System.out.print(courses[i]+"\t");

         }

         System.out.print("总分\t平均分\t排行榜\t");

         System.out.println();

         for(int i=0;i<sum.length-1;i++){

             for(int j=0;j<sum.length-1;j++){

                 if(sum[j]<sum[j+1]){

                     double temp=sum[j];//叫总分高的排在前面

                     sum[j]=sum[j+1];

                     sum[j+1]=temp;

                     String temp2=str[j];//将整行交换

                     str[j]=str[j+1];

                     str[j+1]=temp2;

                 }

             }

         }

         for(int i=0;i<names.length;i++){

             //System.out.print(names[i]+"\t");

             //for(int j=0;j<courses.length;j++){

                 //System.out.print(scores[i][j]+"\t");

             //}

             //System.out.print(sum[i]+"\t"+avg[i]+"\t");

             System.out.print(str[i]);

             System.out.print("第"+(i+1)+"名");

             System.out.println();

         }

     }

 }