Question

Weighted GPA Calculator2 Many schools factor in the number of credits each course is worth, meaning a 4-credit class has more value than a 2-credit class when calculating students GPA Suppose the following were the grades for a student CreditsGrade lass Pre-Calculus History Chemistry Physical Education 1 Letter grades are assigned as follows Letter grades are worth these points 0-60 F 61 -70 D 71 80 C 81 -90 B 91 -100 A Class Pre-Calculus History Chemistr)y Physical Education 1 Total Credits Grade Points Total 16 13 32 To find the GPA weighted by credit hours, follow these steps: Multiply each Letter grade points by the number of credits the course was worth. For Pre-Calculus for example (2x48 points) Add the points for all four courses together Divide the sum (32 in our example) by the total number of credits, in this example, 9 Weighted by Credit Hour GPA 3.56 (calculated as 32/9) In comparison, if you weighted these grades using the Simple GPA method the GPA would be 3.25 (calculated as (13/4) Write a program that calculates and displays the GPA for a class of 5 students taking the above 4 courses Each student is represented by a Student struct as shown below. Fill a vector of Student structures with data for each student For each student pull a random number between 60-100 inclusive for each of the 4 courses they Calculate their weighted GPA based on the above criteria
use c++

Answer 1

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#include<iostream>

#include<iomanip>

#include<vector>

#include<cstdlib>

using namespace std;

const int NUM_STUDENTS = 5;

const int NUM_SCORES = 4;

const int CREDITS[] = {2, 2, 4, 1};

struct Student{

int idNumber;

int raw_scores[NUM_SCORES];

char letter_grades[NUM_SCORES];

int weighted_scores[NUM_SCORES];

int totalPoints;

double gpa;

};

char getLetterGrade(int score);

int gradePoints(char grade);

int main(){

vector<Student> scores;

Student temp;

for(int i=0; i<NUM_STUDENTS; i++){

bool alreadyExist = true;

while(alreadyExist){

temp.idNumber = (rand()%9998)+1;

alreadyExist = false;

for(int j=0; j<i; j++){

if(scores[j].idNumber==temp.idNumber){

alreadyExist = true;

break;

}

}

}

temp.totalPoints = 0;

for(int j=0; j<NUM_SCORES; j++){

temp.raw_scores[j] = (rand()%40)+60;

temp.letter_grades[j] = getLetterGrade(temp.raw_scores[j]);

temp.weighted_scores[j] = gradePoints(temp.letter_grades[j])*CREDITS[j];

temp.totalPoints += temp.weighted_scores[j];

}

temp.gpa = (double)temp.totalPoints/NUM_SCORES;

scores.push_back(temp);

}

cout<<setw(4)<<"ID"<<" ";

for(int i=0; i<NUM_SCORES; i++){

cout<<"S"<<(i+1)<<" G"<<(i+1)<<" ";

}

cout<<"Total GPA"<<endl;

for(int i=0; i<NUM_STUDENTS; i++){

cout<<setw(4)<<setfill('0')<<scores[i].idNumber<<" ";

for(int j=0; j<NUM_SCORES; j++){

cout<<scores[i].raw_scores[j]<<" "<<scores[i].letter_grades[j]<<" ";

}

cout<<scores[i].totalPoints<<" "<<scores[i].gpa<<endl;

}

return 0;

}

char getLetterGrade(int score){

if(score>90)

return 'A';

else if(score>80)

return 'B';

else if(score>70)

return 'C';

else if(score>60)

return 'D';

else

return 'F';

}

int gradePoints(char grade){

if(grade=='A')

return 4;

else if(grade=='B')

return 3;

else if(grade=='C')

return 2;

else if(grade=='D')

return 1;

else

return 0;

}