Question

Lowest Score Drop In Functions, there can only be one return statement. You can not use an exit or break function. Write a program that calculates the average of a group of test scores, where the lowest score in the group is dropped. It should use the following functions: void getScore() should ask the user for a test score, store it in a reference parameter variable, and validate it. This function should be called by main once for each of the five scores to be entered. This function will call the isValid function. Sending it the value to test along with highest possible valid score (100). Use a local static variable for which score is to be entered. void calcAverage() should calculate and display the average of the four highest scores. This function should be called just once by main and should be passed the five scores. Include 2 decimal places on the result. double findLowest() should find and return the lowest of the five scores passed to it. It should be called by calcAverage, which uses the function to determine which of the five scores to drop. bool isValid() should determine if the test score is a valid one. Do not accept test scores lower than 0 or higher than the highest score that is passed in. Test scores may have decimal places, such as 85.6. This function should be called by getScore. Do not use the min or max C++ functions.

Answer 1

Screenshot of program code:-

Screenshot of output:-

Program code to copy:-

#include <iostream>
#include <iomanip>

using namespace std;

//Function prototype
bool isValid(double score,int maxScore);
void getScore(double &score);
double findLowest(double score[]);
void calcAverage(double score[]);

//main() function
int main()
{
   double static score[5];
  
   for(int i=0; i<5; i++)
   {
       //Calling function to get the score
       getScore(score[i]);
   }
   //Calling function to calculate & print the average score
   calcAverage(score);
  
   return 0;
}

//Function to validate the score
bool isValid(double score,int maxScore)
{
   if(score>=0 && score<=100)
       return true;
   else
       return false;
}

//Function to get the score from user
void getScore(double &score)
{   
   do
   {
       //Prompt & read the score from user
       cout << "Enter the score: ";
       cin >> score;
       //Validating the score
       if(!isValid(score,100))
           cout << "Invaild input!Enter score between 0 to 100" << endl;      
   }while(score<0 | score>100);
}

//Function to find the lowest score
double findLowest(double score[])
{
   int lowest = score[0];
   for(int i=1; i<5; i++)
   {
       if(score[i]<lowest)
           lowest = score[i];
   }
   return lowest;
}

//Function to calculate the average score
void calcAverage(double score[])
{
   double sum;
  
   //Calculating sum of five scores
   for(int i=0; i<5; i++)
   {
       sum += score[i];
   }
   //Calling function to get lowest scrore
   double lowest = findLowest(score);
   //subtracting lowest score from sum of five score
   sum -= lowest;
   //Calculating average score
   double average = sum/4.0;
  
   //Printing average score on screen
   cout << setprecision(1) << fixed;
   cout << "Average Score = " << average << endl;
}