I tried to calculate the average and subtract 75 from it. When I did that, I didn't get an answer. This is my codes for it:

static void Main(string[] args)

{

SortedList num2 = new SortedList();

for (int i = 0; i < 5; i++)

{

Console.WriteLine("Name Score:");

string name = Console.ReadLine();

double score = double.Parse(Console.ReadLine());

num2.Add(name, score);

}

foreach (var listItem in num2)

{

Console.WriteLine($"{listItem.Key} - {listItem.Value}");

}

Console.WriteLine("Name:");

double average = num2.Sum(item => +item.Value) / 5;

double curve = 75 - average;

Console.WriteLine($"{curve}");

Console.ReadLine();

Next question is an attached file. Basically, I have to make a slide puzzle and make the numbers move to the blank button. Then, I have to reset it back to its original position. We have to use a two-dimensional array for this problem.