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#include <iostream>
using namespace std;
typedef int GradeType[100]; // declares a new data type:
// an integer array of 100 elements
void getData(GradeType array, int& sizeOfArray);
float findAverage (const GradeType array, int sizeOfArray); // finds average of all grades
int findHighest (const GradeType array, int sizeOfArray); // finds highest of all grades
int findLowest (const GradeType array, int sizeOfArray); // finds lowest of all grades
int main(){
GradeType grades; // the array holding the grades.
int numberOfGrades; // the number of grades read.
float avgOfGrades; // contains the average of the grades.
int highestGrade; // contains the highest grade.
int lowestGrade; // contains the lowest grade.
numberOfGrades = 0; // Fill blank with appropriate identifier
getData(grades, numberOfGrades); // Read in the values into the array
// call to the function to find average
avgOfGrades = findAverage(grades, numberOfGrades);
cout << endl << "The average of all the grades is " << avgOfGrades << endl;
// Fill in the call to the function that calculates highest grade
highestGrade=findHighest(grades, numberOfGrades);
cout << endl << "The highest grade is " << highestGrade << endl;
// Fill in the call to the function that calculates lowest grade
lowestGrade=findLowest(grades, numberOfGrades);
// Fill in code to write the lowest to the screen
cout<<endl<<"The lowest grade is "<<lowestGrade<<endl;
return 0;
}
void getData(GradeType array, int& sizeOfArray){
int pos = 0; // // index to the array which starts at 0.
int grade; // holds each individual grade read in
cout << "Please input a grade or type -99 to stop: " << endl;
cin >> grade;
while (grade != -99)
{
array[pos] = grade; // store grade read in to next array location
pos ++; // increment array index
cout << "Please input a grade or type -99 to stop: " << endl;
cin >> grade;
}
sizeOfArray = pos; // upon exiting the loop, pos holds the
// number of grades read in, which is sent
// back to the calling function
}
float findAverage (const GradeType array, int sizeOfArray){
float avg = 0; // holds the sum of all the numbers
for (int pos = 0; pos < sizeOfArray; pos++){
avg+=(array[pos])/sizeOfArray;
}
return avg; //returns the average
}
int findHighest (const GradeType array, int sizeOfArray){
int highest = 0;
for (int pos = 0; pos<sizeOfArray;pos++){
if(highest<array[pos]){
highest=array[pos];
}
}
return highest;
}
int findLowest(const GradeType array, int sizeOfArray){
int lowest = 0;
for(int pos = 0; pos<sizeOfArray; pos++){
if(lowest>array[pos]){
lowest=array[pos];
}
}
return lowest;
}
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