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29.1 Final_CA_Marks_2D_ARRAY.java
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29.1 Final_CA_Marks_2D_ARRAY.java
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/*
Mrs. Jhunjhunwala has taught Programming in Java to the second-year students in ICE college and conducted 3 academic tasks for all the (N) students. Marks are store in a 2-D array but now Mrs. Jhunjhunwala is willing to implement a java program which can accept the 2-D array of marks and return the average marks of Best 2 Academic Tasks of each student. Help her to implement a method public double[] average_marks(double [][] marks)
Input Format
First line reads the number of students N
Next N lines read the marks of each student seperated by space
Constraints
n>0
Output Format
Prints the Avaerage marks of best 2 Academic tasks of N students separated by space
Sample Input 0
2
10.5 2.5 15
5.25 6.75 11.25
Sample Output 0
12.75 9.0
*/
import java.io.*;
import java.util.*;
public class Solution {
public double[] average_marks(double [][]marks)
{
double []result = new double[marks.length];
for(int i=0;i<marks.length;i++)
{
double min = marks[i][0];
for(int j=1;j<marks[i].length;j++)
{
if(min>marks[i][j])
min = marks[i][j];
}
double sum = 0;
for(int j=0;j<marks[i].length;j++)
{
if(marks[i][j]!=min)
sum += marks[i][j];
}
double avg = sum/(marks[i].length-1);
result[i] = avg;
}
return result;
}
public static void main(String[] args) {
/* Enter your code here. Read input from STDIN. Print output to STDOUT. Your class should be named Solution. */
Scanner sc = new Scanner(System.in);
int n = sc.nextInt();//number of student
double [][]marks = new double[n][3];
//take input for marks
for(int i=0;i<n;i++)
{
for(int j=0;j<3;j++)
{
marks[i][j] = sc.nextDouble();
}
}
//calling required method by creating sutable object
Solution ans = new Solution();
double []result = ans.average_marks(marks);
for(double i : result)
{
System.out.print(i+" ");
}
}
}