using System;

//תרגיל 5

​

int[] scores = new int[200];

int[] scoreCurrency = new int[101];

​

for (int i = 0; i < 200; i++)

{

    Console.Write("Put a grade for student" + (i + 1) + ": ");

    scores[i] = int.Parse(Console.ReadLine());

    scoreCurrency[scores[i]]++;

}

​

Console.WriteLine("spilt of grades:");

Console.WriteLine();

for (int i = 100; i >= 0; i--)

{

    if (scoreCurrency[i] > 0)

    {

        Console.WriteLine(i + " - " + scoreCurrency[i] + " students");

    }

}

​

int[] rangeCurrency = new int[10];

for (int i = 0; i < 200; i++)

{

    int rangeIndex = scores[i] / 10;

    if (rangeIndex == 10) rangeIndex = 9;

    rangeCurrency[rangeIndex]++;

}

​

int maxRangeCount = rangeCurrency[0];

int maxRangeIndex = 0;

for (int i = 1; i < 10; i++)

{

    if (rangeCurrency[i] > maxRangeCount)

    {

        maxRangeCount = rangeCurrency[i];

        maxRangeIndex = i;

    }

}

​

Console.WriteLine("The most common range is: " + (maxRangeIndex * 10) + "-" + (maxRangeIndex * 10 + 9));