Using C Write a program that will define a structure consist

Using C++:

Write a program that will define a structure consisting of the following data members, “fields”:

Name - a string

Student id number – an integer.

Three test scores – positive short integers.

Average –a float

Grade – a character.

Input to the program consists of:

name

id number

three test scores

Requirements:

Use a function to read the name, id number and three test scores, the function will return a structure.

A function to find the average, the function is a void function that takes the entire structure as an argument (by reference) and calculates the average.

A function that takes the average as argument and returns the grade (‘A’,’B’,’C’,’D’, or ’F’) using standard grading.

A function that prints each data member of the structure on a separate line and calls another function that prints the message “You Passed” or “You Failed”.

Display should be like this:

Employee Name :       Roberth Schultz

Id Number :             2345

Tests :

1-78

2-88

3-98

Average :         88.00

Grade :           B         You Passed.

Solution

#include <iostream>
#include <string>
using namespace std;

struct studentDetails {
string name;
int studentID;
int score[3];
float average;
char grade;
};

studentDetails input()
{
   studentDetails student;

   cout<<\"Enter the student name: \";
   cin>>student.name;
   cout<<\"\ Enter student ID: \";
   cin>>student.studentID;
   cout<<\"\ Enter the three test scores\";
   for(int i=0;i<3;i++)
   {
       cout<<\"\ Test \"<<i+1<<\" mark: \";
       cin>>student.score[i];
   }
return student;
}

void calculateAverage(studentDetails *data)
{
   int sum=0;
   for(int i=0;i<3;i++)
   {
       sum+=data->score[i];
   }
   data->average=sum/3;
   cout<<\"Average of marks scored in 3 subjects is :\";
   cout<<data->average;  
}

char calculateGrade(float avg)
{
   if(avg>=90)
   {
       return \'A\';
   }
   else if(avg>=80 && avg<90)
   {
       return \'B\';
   }
   else if(avg>=70 && avg<80)
   {
       return \'C\';
   }
   else if(avg>=60 && avg<70)
   {
       return \'D\';
   }
   else
   {
       return \'E\';
   }
}

void display()
{
   studentDetails sd;
   cout<<\"\ Employee Name: \"<<sd.name;
   cout<<\"\ Id Number: \"<<sd.studentID;
   cout<<\"\ Tests: \";
   for(int j=0;j<3;j++)
   {
       cout<<j+1<<\"-\"<<sd.score[j];
       cout<<\"\ \";
   }
   cout<<\"Average: \"<<sd.avg;
   cout<<\"\ Grade: \"<<sd.grade<<getMessage(sd.grade);
}

String getMessage(grade)
{
   if(grade=\'A\' || grade=\'B\' || grade=\'C\')
   {
       return \"You Passed.\";
   }
   else
   {
       return \"You Failed.\";
   }
}

int main()
{
   input();
   studentDetails data;
   calculateAverage(&data);
   calculateGrade(data.average);
   display();
}