Compute the average of a list of user-entered integers representing rolls of two dice. The list ends when 0 is entered. Integers must be in the range 2 to 12 (inclusive); integers outside the range don't contribute to the average. Output the average, and the number of valid and invalid integers (excluding the ending 0). If only 0 is entered, output 0. The output may be a floating-point value. Ex: If the user enters 8 12 13 0, the output is:Average: 10Valid: 2Invalid: 1Hints:

Following are the program to the given scenario:

Program Explanation:

Program:

#include <iostream>//header file

using namespace std;

int main()// defining the main method

{

   int userInt,sum,valid,invalid;//defining integer variable  

   sum=valid=invalid=0;//Initializing value in integer variables

   cin>>userInt;//input value in userInt

   //defining do-while loop

   do

   {

      if(userInt>=2&&userInt<=12)//defining if block that check value in range that is 2 to 12

      {

          sum = sum+ userInt;//adding input value into sum variable

          valid++;//incrementing valid value

      }

      else//defining else block

      {

      invalid++;//incrementing invalid value

      }

      cin>>userInt;//input values

  }while(userInt != 0);//defining a while loop that check input value not equal to 0

   if(valid != 0)//defining if block that check valid not equal 0

  {

       cout<<"Average: "<<(sum)/valid<<endl;//using print method that calculates and prints average value

       cout<<"Valid: "<<valid<<endl;//using print method that prints valid value

       cout<<"Invalid: "<<invalid<<endl;//using print method that prints Invalid value

  }

  return 0;

}

Output:

Please find the attached file.

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mylist = []

total = 0

valid = 0

invalid = 0

num = int(input("Number: "))

while num != 0:

    mylist.append(num)

    if(num>=2 and num<=12):

         total = total + num

         valid = valid + 1

    else:

         invalid = invalid + 1

    num = int(input("Number: "))

print("Average: "+str(total/valid))

print("Valid: "+str(valid))

print("Invalid: "+str(invalid))

Explanation:

The solution is implemented in Python

This line defines an empty list

mylist = []

The next three lines initializes total, valid input and input to 0 respectively

total = 0

valid = 0

invalid = 0

This line prompts user for input

num = int(input("Number: "))

This loop is repeated while input number is not 0

while num != 0:

This adds input number to the list

    mylist.append(num)

This checks for valid inputs

    if(num>=2 and num<=12):

If valid, the sum is calculated

         total = total + num

And the number of valid inputs is incremented by 1

         valid = valid + 1

If otherwise,

    else:

The number of invalid inputs is incremented by 1

         invalid = invalid + 1

This prompts user for another input

    num = int(input("Number: "))

This calculates and prints the average

print("Average: "+str(total/valid))

This prints the number of valid inputs

print("Valid: "+str(valid))

This prints the number of invalid inputs

print("Invalid: "+str(invalid))

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