CODEWITHSUNDEEP
c#
user3444694
user3444694

Reputation: 61

Calculating the total and taking the average of numbers in an array

Here is the question i need to solve:

  1. Find highest value of the 12 scores
  2. Find lowest value of the 12 scores
  3. Calculate the total of the 12 scores
  4. Subtract highest and lowest scores from the total
  5. Calculate average of 10 remaining scores by dividing total by 10
  6. Output average (formatted to 2 decimal places)

This is what i have done so far,everything except the calculate total score and subract highest and lowest from total score and im not sure where im suppose to put the code and what code I'm suppose to use:

double[] scores = { 8.7, 9.3, 7.9, 6.4, 9.6, 8.0, 8.8, 9.1, 7.7, 9.9, 5.8, 6.9 };

        Console.WriteLine("Numbers in the list:" + scores.Length);

        for (int index = 0; index < scores.Length; index++)
        {
            Console.WriteLine(scores[index]);
        }


        //highest number
        double high = scores[0];

        for (int index = 1; index < scores.Length; index++)
        {
            if (scores[index] > high)
            {
                high = scores[index];
            }
        }

        Console.WriteLine("Highest number =" + high);

        //lowest number
        double low = scores[0];

        for (int index = 1; index < scores.Length; index++)
        {
            if (scores[index] < low)
            {
                low = scores[index];
            }
        }

        Console.WriteLine("lowest number =" + low);

        //average of the scores
        double total = 0;
        double average = 0;

        for (int index = 0; index < scores.Length; index++)
        {
            total = total + scores[index];
        }

        average = (double)total / scores.Length;

        Console.WriteLine("Total=" + total);
        Console.WriteLine("Average=" + average.ToString("N2"));
        Console.ReadKey();
    }

Upvotes: 1

Views: 3240

Answers (3)

Luc Morin
Luc Morin

Reputation: 5380

For the sake of completeness, I'd like to propose a solution that will handle the case where there might be more than one element in the array with the max value or min value:

double[] scores = { 8.7, 9.3, 7.9, 6.4, 9.6, 8.0, 8.8, 9.1, 7.7, 9.9, 5.8, 6.9, 9.9, 5.8 };
var resultValue = scores.Where(e => e != scores.Max() && e != scores.Min()).Sum();

Cheers

NOTE: Yes, it might become inefficient if the list is long, as e.Max() and e.Min() will be called many times, and they will iterate the whole list many times. But according to the problem statement, there's only 12 values. I wanted to leave it as a 1 liner, but if more values were to be handled, then caching the Max and Min values would be better.

Upvotes: 0

Chris Shao
Chris Shao

Reputation: 8231

double[] scores = { 8.7, 9.3, 7.9, 6.4, 9.6, 8.0, 8.8, 9.1, 7.7, 9.9, 5.8, 6.9 };
double min = scores.Min();
double max = scores.Max();
double total = scores.Sum();
double result = total - min - max;

Upvotes: 1

xenolightning
xenolightning

Reputation: 4230

If you are using .NET 3.5+ , you can use LINQ Sum(), Min() and Max() functions. To do this you need to add using System.Linq;

double[] scores = { 8.7, 9.3, 7.9, 6.4, 9.6, 8.0, 8.8, 9.1, 7.7, 9.9, 5.8, 6.9 };
double calculatedValue = scores.Sum() - scores.Max() - scores.Min();

Upvotes: 7

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