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Answer to Question #50431 in C++ for emadtamimi

Question #50431
1. Write a program that can enter marks for number of students and calculate their Total and class
average with the following format
The inputs:
ID (As 1 dimension array of Integers),marks(as 2 dimensional array of double), Grad (As 1 dimension
array of Chars)
The Grades are: A for 90’s, B for 80’s, C for 70’s, D for 60’s and F for less than 60.
Use the following functions to find
1. void inputID(int[]);
2. void inputMarks(double [][4]);
3. void Total(double[][4]);
4. void Grade(double[][4],char[]);
5. double ClassAverage(double[][4]);
6. void print(int[],double[][4],char[]);
The output:
St_Nm ID First Second Final Total Grade
1 20071156 15.5 16.5 30.1 62.1 D
2 20071154 15.0 16.5 30.1 62.6 D
Class average for 10 students is: 72.5
Expert's answer

Writea program that can enter marks for number of students and calculate their Total
and class
average with the following format

The inputs:
ID (As 1 dimension array of Integers), First(As1 dimension array of Doubles), Second (As 1 dimension
array of Doubles), Final (As 1 dimension arrayof Doubles), Total (As 1 dimension array of Doubles), Grad
(As 1 dimension array of Chars)
The Grades are: A for 90’s, B for 80’s, C for70’s, D for 60’s and F for less than 60.

Example of the output:

St_Nm ID First Second Final Total Grade
1 20071156 15.5 16.5 30.1 62.1 D
2 20071154 15.0 16.5 30.1 62.6 D

Class average for 10 students is: 72.5 
 
Solution.
 
//Connectinglibraries
#include<iostream>
#include<iomanip>
 
usingnamespace std;
 
constint SIZE = 10;
 
//Declaringof prototypes functions
voidinputID(int[]);
voidinputMarks(double[]);
doubleClassAverage(double []);
voidGrade(double[],char[]);
voidTotal(double[],double[],double [],double[]);
voidprint(int[] , double[],double[] , double[],double[], char[]);
 
//Create a main function
intmain()
{
       //Declaringvariables
       intID[SIZE]={0};
       doublemarksFirst[SIZE]={0}, marksSecond[SIZE]={0}, marksFinal[SIZE]={0};
       doubletotal[SIZE]={0};
       doubleaverage[SIZE]={0};
       charcourseGrade[SIZE]="\0";
 
       //Callingfunctions
       inputID(ID);
      
       cout<<endl<<"First: "<<endl;
       inputMarks(marksFirst);
 
       cout<<endl<<"Second: "<<endl;
       inputMarks(marksSecond);
 
       cout<<endl<<"Final: "<<endl;
       inputMarks(marksFinal);
      
       //Callingfunction determination Total
       Total(marksFirst, marksSecond,marksFinal, total);
 
       //Callingfunction determination Grade
       Grade(total,courseGrade);
 
       //Callingfunction print
       print(ID, marksFirst, marksSecond,marksFinal, total, courseGrade);
 
       //Stop console
       cin.get();
       cin.get();
       return 0;
}
 
voidinputID(int ID[])
{
       for(int i=0; i<SIZE; i++)
       {
             cout<<"Enter ID for "<<i+1<< " student: ";
             cin>>ID[i];
             cout<<endl;
       }
}
 
voidinputMarks(double marks[])
{
       for(int i=0; i<SIZE; i++)
       {
             cout<<"Enter marks for "<<i+1<< " student: "<<endl;
             cin>>marks[i];
             cout<<endl;
 
       }
}
 
voidTotal(double marksFirst[],double marksSecond[],doublemarksFinal[],double total[])
{
       for(int i=0; i<SIZE; i++)
       {
             total[i] = marksFirst[i] +marksSecond[i] + marksFinal[i];
       }
}
 
voidGrade(double average[] ,char courseGrade[])
{
      
   for(int i=0; i<SIZE; i++)
   {
             if(average[i] >= 90)
             {
                    courseGrade[i] = 'A';
             }
             elseif (average[i] >= 80 && average[i]< 90)
             {
                    courseGrade[i] = 'B';
             }
             elseif (average[i] >= 70 && average[i]< 80)
             {
                    courseGrade[i] = 'C';
             }
             elseif (average[i] >= 60 && average[i]< 70)
             {
                    courseGrade[i] = 'D';
             }
             elseif (average[i] < 60)
             {
                    courseGrade[i] = 'F';
             }
   }
 
}
 
voidprint(int ID[] , doublemarksFirst[], double marksSecond[] , double marksFinal[], doubletotal[], char courseGrade[])
{
       cout<<"St_Nm    ID   First Second Final Total Grade"<<endl;
 
       for(int i=0; i<SIZE; i++)
       {
              cout<<setw(4)<<i+1<<setw(9)<<ID[i]<<setw(5)<<marksFirst[i]<<setw(7)<<marksSecond[i]<<setw(7)<<marksFinal[i]<<setw(7)<<total[i]<<setw(3)<<courseGrade[i];
             cout<<endl;
       }
 
       cout<<endl<<endl<<"Class average for 10 students is: "<<ClassAverage(total);
      
}
 
doubleClassAverage(double total[])
{
       doubleavg=0;
 
       for(int i=0; i<SIZE; i++)
       {
             avg+=total[i];
       }
 
       returnavg/SIZE;
}
 

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