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#include <iostream>
#include <iomanip>
using namespace std;
//function prototypes
void getScores(double);
void calcAverage(double, double, double, double, double);
double findLowest(double, double, double, double, double);
int main()
{
double score1; //to hold first score
double score2; //to hold second score
double score3; //to hold third score
double score4; //to hold fourth score
double score5; //to hold fifth score
//calling for the five test scores
getScores(score1);
getScores(score2);
getScores(score3);
getScores(score4);
getScores(score5);
//display average score after dropping the lowest and highest scores
calcAverage(score1, score2, score3, score4, score5);
return 0;
}
//get score function asks the user to enter a test score, stores it in a variable, and validates it
void getScores(double score1)
{
//get test scores
cout << " Enter a test score: ";
cin >> score1;
//validation
while (score1 < 0.0 || score1 > 100.1)
{
cout << " The test score must be between 0.0 and 100\n"
<< " Enter a valid test score: ";
cin >> score1;
}
}
void getScores(double score2)
{
//get test scores
cout << " Enter a test score: ";
cin >> score2;
//validation
while (score2 < 0.0 || score2 > 100.1)
{
cout << " The test score must be between 0.0 and 100\n"
<< " Enter a valid test score: ";
cin >> score2;
}
}
void getScores(double score3)
{
//get test scores
cout << " Enter a test score: ";
cin >> score3;
//validation
while (score3 < 0.0 || score3 > 100.1)
{
cout << " The test score must be between 0.0 and 100\n"
<< " Enter a valid test score: ";
cin >> score3;
}
}
void getScores(double score4)
{
//get test scores
cout << " Enter a test score: ";
cin >> score4;
//validation
while (score4 < 0.0 || score4 > 100.1)
{
cout << " The test score must be between 0.0 and 100\n"
<< " Enter a valid test score: ";
cin >> score4;
}
}
void getScores(double score5)
{
//get test scores
cout << " Enter a test score: ";
cin >> score5;
//validation
while (score5 < 0.0 || score5 > 100.1)
{
cout << " The test score must be between 0.0 and 100\n"
<< " Enter a valid test score: ";
cin >> score5;
}
}
//calcAverage function calculates and displays the average of the three scores that remain after dropping the highest
//and lowest scores the student received
void calcAverage(double score1, double score2, double score3, double score4, double score5)
{
//getting lowest score
double lowest = findLowest(score1, score2, score3, score4, score5);
//calculating the average of all 5 test scores
double total = score1 + score2 + score3 + score4 + score5;
//drops the lowest test score and calculates the remaining average
double average = (total - lowest) / 3.0;
//display the average score with the lowest score dropped
cout << "\nAfter dropping the lowest score of " << lowest << "the average test score was " << setprecision(1) << fixed << showpoint << average << ".\n";
}
// finds lowest function finds and returns the lowest of the five test scores
double findLowest(double score1, double score2, double score3, double score4, double score5)
{
double lowest; //holds the lowest score
//assuming the first score is the lowest
lowest = score1;
//checking to see if its true
if (lowest > score2)
lowest = score2;
if (lowest > score3)
lowest = score3;
if (lowest > score4)
lowest = score4;
if (lowest > score5)
lowest = score5;
return lowest;
}
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