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  1. /* package whatever; // don't place package name! */
  2.  
  3. import java.util.*;
  4. import java.lang.*;
  5. import java.io.*;
  6.  
  7. /* Name of the class has to be "Main" only if the class is public. */
  8. class Ideone
  9. {
  10. 	   public static class year implements Comparable<year> {
  11.     int yer;
  12.     float grade;
  13.     ArrayList <Float>grades =new ArrayList<>();
  14.  
  15.     public int getYer() {
  16.         return yer;
  17.     }
  18.  
  19.     public void setYer(int yer) {
  20.         this.yer = yer;
  21.     }
  22.  
  23.     public float getGrade() {
  24.         return grade;
  25.     }
  26.     public ArrayList getGradeArray() {
  27.         return grades;
  28.     }
  29.  
  30.     public void setGrade(float grade) {
  31.         this.grade = grade;
  32.         grades.add(grade);
  33.     }
  34.      @Override
  35.     public int compareTo(year o) {
  36.         return  (this.yer - o.yer == 0.0 ? 0 : (this.yer - o.yer < 0.0  ? -1 : 1) ) ; 
  37.      //   throw new UnsupportedOperationException("Not supported yet."); //To change body of generated methods, choose Tools | Templates.
  38.     }
  39. }
  40.  
  41.  
  42.  
  43.     public static float average(ArrayList<Float> x){
  44.         float sum=(float) 0.0;
  45.         for(int i=0;i<x.size();i++){
  46.             sum+=x.get(i);
  47.         }
  48.         return sum/x.size();
  49.     }
  50.  
  51.     public static void main(String[] args) {
  52.          ArrayList <year>Years =new ArrayList<>();
  53.         Scanner in=new Scanner(System.in);
  54.         int noYears;
  55.         for(int i=0;i<3;i++){
  56.             noYears=in.nextInt();
  57.             for(int j=0;j<noYears;j++){
  58.                 int yr=in.nextInt();
  59.                 if(Years.size()==0){
  60.                 year y=new year();
  61.                 y.setYer(yr);
  62.  
  63.                 int noGrades=in.nextInt();
  64.                 for(int k=0;k<noGrades;k++){
  65.                     y.setGrade(in.nextFloat());
  66.                 }
  67.                 Years.add(y);
  68.             }
  69.                 else{
  70.                     boolean b=false;
  71.                     for(int k=0;k<Years.size();k++){
  72.                       if(yr==Years.get(k).getYer()){
  73.                           int noGrades=in.nextInt();
  74.                           for(int m=0;m<noGrades;m++){
  75.                     Years.get(k).setGrade(in.nextFloat());
  76.                     b=true;
  77.                     break;
  78.                 }
  79.                       }
  80.                     }
  81.                     if(b==false)
  82.                       {
  83.                           year y=new year();
  84.                 y.setYer(yr);
  85.  
  86.                 int noGrades=in.nextInt();
  87.                 for(int m=0;m<noGrades;m++){
  88.                     y.setGrade(in.nextFloat());
  89.                }
  90.                  Years.add(y);
  91.                       }
  92.  
  93.                 }
  94.             }
  95.         }
  96.            Collections.sort(Years);
  97.         for(int i=0;i<Years.size();i++){
  98.             float av=average(Years.get(i).getGradeArray());
  99.             System.out.println(Years.get(i).getYer()+" "+av);
  100.         }
  101.     }
  102. }
Runtime error #stdin #stdout #stderr 0.15s 321344KB
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stdin
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Standard input is empty
stdout
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Standard output is empty
stderr
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Exception in thread "main" java.util.NoSuchElementException
	at java.util.Scanner.throwFor(Scanner.java:862)
	at java.util.Scanner.next(Scanner.java:1485)
	at java.util.Scanner.nextInt(Scanner.java:2117)
	at java.util.Scanner.nextInt(Scanner.java:2076)
	at Ideone.main(Main.java:56)
https://ideone.com/2HpzMa
language:
Java (HotSpot 12)
created:
7 years ago
visibility:
public

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