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#include <iostream>
#include <string>
#include <iomanip>
#include <cmath>
#include <cstdlib>
#include <fstream>
using namespace std;
void computeLetterGrade(double grade[]);
void readInput (float scores[], int len,double grade[]);
void computeGrade(float score[],double grade[]);
int main (){
float scores[5];
double grade[1];
readInput(scores, 5, grade);
cout<<endl;
computeLetterGrade(grade);
return 0;
}
void readInput (float scores[], int len,double grade[]){
string name, last;
cout << "Please enter the student's full name -----> " << name;
cin >> name>> last;
cout << "Please enter the scores in the following order" << endl;
cout<<endl;
cout << "Homework , quizzes , mid- term , final , attendance -----> ";
for (int i=0; i<len; ++i)
{ cin >> scores[i];}
int i=0;
if (scores[ i] >100)
{cout<<""<<endl;
cout <<"ERROR..score over 100 not possiable." <<endl;
}
else {cout<<"................................................................................"<< endl;
cout << "Homework ="<< scores[0]<<endl;
cout << "Quizzes ="<< scores[1]<< endl;
cout << "Mid-term ="<< scores[2]<< endl;
cout << "Final ="<<scores[3]<< endl;
cout << "Attendance ="<<scores[4]<< endl;
cout<<"................................................................................"<< endl;
cout<<""<<endl;
cout <<"The final grade for the student: " << name<<" "<< last<< " is as follows:"<< endl;}
computeGrade(scores, grade);
cout<<endl;
}
void computeGrade(float scores[], double grade []){
double homework , quizzes , midterm , final , attendance;
homework = scores[0]*0.3;
quizzes = scores[1]*0.1;
midterm = scores[2]*0.25;
final = scores[3]*0.3;
attendance = scores[4]*0.05;
double sum( homework + quizzes + midterm + final + attendance);
cout << "Grade in 100% = "<< setprecision(4)<< sum << endl;
grade [1]= sum ;
}
void computeLetterGrade(double grade[]){
if (grade [1]>= 90)
cout <<"Letter Grade = A"<<endl;
else if (grade [1]>= 80)
cout <<"Letter Grade = B"<<endl;
else if (grade[1]>=70)
cout <<"Letter Grade = C"<<endl;
else if (grade [1]>=60)
cout <<"Letter Grade = D"<<endl;
else if (grade[1]< 60)
cout <<"Letter Grade = E"<<endl;
}
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