# Answer to Question #50443 in C++ for Lia

Question #50443

1. Write a program that can enter marks for number of students and calculate their Total and class

average with the following format (((((WITHOUT using functions)))))

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.

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

average with the following format (((((WITHOUT using functions)))))

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.

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

Expert's answer

//Connectinglibraries

#include<iostream>

#include<iomanip>

usingnamespace std;

constint SIZE = 10;

//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";

//Input ID

for(int i=0; i<SIZE; i++)

{

cout<<"Enter ID for "<<i+1<< " student: ";

cin>>ID[i];

cout<<endl;

//Inputmarks for first

cout<<endl<<"First: "<<endl;

cout<<"Enter marks for "<<i+1<< " student: "<<endl;

cin>>marksFirst[i];

cout<<endl;

//Inputmarks for second

cout<<endl<<"Second: "<<endl;

cout<<"Enter marks for "<<i+1<< " student: "<<endl;

cin>>marksSecond[i];

cout<<endl;

//Inputmarks for final

cout<<endl<<"Final: "<<endl;

cout<<"Enter marks for "<<i+1<< " student: "<<endl;

cin>>marksFinal[i];

cout<<endl;

}

//DeterminationTotal

for(int i=0; i<SIZE; i++)

{

total[i] = marksFirst[i] +marksSecond[i] + marksFinal[i];

}

//DeterminationGrade

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';

}

}

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;

}

doubleavg=0;

for(int i=0; i<SIZE; i++)

{

avg+=total[i];

}

cout<<endl<<endl<<"Class average for 10 students is: "<<avg/SIZE;

//Stop console

cin.get();

cin.get();

return 0;

}

``

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