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#include <iostream>
using namespace std;
const int NUM_STU=5, NAME_SIZE=20, NUM_TESTS=4;
void computeAverage(double [][NUM_TESTS], double [], int, int);
// tests, average, NUM_STUDENTS, NUM_TESTS
void letterGrade(double [], char [], int); // average, grade, NUM_STUDENTS
void displayGrade(char [][NAME_SIZE], char [], int); // names, grade, NUM_STUDENTS
int main()
{
char names[NUM_STU][NAME_SIZE] =
{"Troy Barnes","Abed Nadir","Annie Edison","Britta Perry","Jeff Winger"};
double tests[NUM_STU][NUM_TESTS] =
{{50, 60, 70, 80}, {60, 70, 80, 90}, {70, 80, 90, 100},
{80, 90, 100, 100}, {90, 100, 100, 100}};
double average[NUM_STU]; // average score
char grade[NUM_STU]; // letter grade
computeAverage(tests, average, NUM_STU, NUM_TESTS);
letterGrade(average, grade, NUM_STU);
displayGrade(names, grade, NUM_STU);
system("pause");
return 0;
}
void computeAverage(double tests[][NUM_TESTS], double average[], int num_stu, int num_tests)
{
double sum = 0;
for (int i=0;i<NUM_STU;i++)
{
for (int j=0;j<NUM_TESTS;j++)
{
sum+=tests[i][j];
average[i]=sum/NUM_TESTS;
}
}
}
void letterGrade(double average[], char grade[], int num)
{
for (num=0;num<NUM_STU;num++)
{
if (average[num] < 60)
grade[num] = 'F';
else if (average [num] < 70)
grade[num] = 'D';
else if (average [num] < 80)
grade[num] = 'C';
else if (average [num] < 90)
grade[num] = 'B';
else if(average [num] <= 100)
grade[num] = 'A';
}
}
void displayGrade(char names[][NAME_SIZE], char grade[], int num)
{
for (num=0; num<NUM_STU; num++)
{
cout <<"Student Name: "<<names[num]<<endl;
cout <<"Student's Letter Grade: "<<grade[num]<<endl;
}
}
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