Question #50405

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), First (As1 dimension array of Doubles), Second (As 1 dimension
array of Doubles), Final (As 1 dimension array of 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 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[]);
3. double ClassAverage(double []);
4. void Grade(double[],char []);
5. void Total(double[],double [],double [],double[]);
6. void print(int[] , double[], double[] , double[],double[], 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

//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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