Hey everyone, so I am having a really annoying problem with my code.
The goal of it is to be able to read a text file of an unknown length (it's more or less a class roster w/ scores) and calculate and display the average of each student. The code compiles without errors but when run it has huge numbers as answers rather than an ID, name, and average.
Thanks for the help!
Text file
1000 John 9.5 9.0 8.5 8.0 8.5 87.0 92.5 86.0
2000 Tom 10.0 6.7 10.0 10.0 10.0 100.0 100.0 100.0
3000 Alice 6.9 8.0 8.0 8.0 8.0 80.0 80.0 80.0Program
#include <iostream>
#include <fstream>
#include <string>
using namespace std;
void input_scores (int id[], char Name[], double avg[], char letter[], int size, char input_file[]);
void output_scores(int id[], char Name[], double avg[], char letter[], int size);
int main(){
//Decimal fix
cout.setf(ios::fixed);
cout.setf(ios::showpoint);
cout.precision(2);
//Defining inputs, ID, class size, etc
ifstream in_file;
char input_file[1024], letter[1024];
int id[1024];
int size = 0;
double avg[1024];
char Name[1024];
//File input
cout << "Enter an input file: ";
cin >> input_file;
in_file.open(input_file);
// in_file.open("C:\\Temp.txt");
//Error check
if (in_file.fail()){
cout << "Error: input file open failed.\n";
return(1);
}
char line[1024];
while(in_file.good()){
in_file.getline(line,1024);
size++;
}
cout << size << endl;
//Functions for reading -> calculating -> outputting
input_scores (id,Name,avg,letter,size,input_file);
output_scores(id,Name,avg,letter,size);
return 0;
}void input_scores(int id[], char Name[], double avg[], char letter[], int size, char input_file[]){
//Calculations and ID tracking
double quiz1, quiz2, quiz3, quiz4, quiz5, midterm1, midterm2, final, grade;
//Input text file
ifstream in_file;
in_file.open(input_file);
//Calculates average and letter grade, then stores in array
for (int i=0; i < size; i++){
in_file >> id[i];
in_file >> Name[i];
in_file >> quiz1 >> quiz2 >> quiz3 >> quiz4 >> quiz5 >> midterm1 >> midterm2 >> final;
//Average calculation and grade used for letter tracking
avg[i] = ((((quiz1*10)+(quiz2*10)+(quiz3*10)+(quiz4*10)+(quiz5*10))/5)*.2) + (((midterm1+midterm2)/2)*.4) + (final*.4);
grade = ((((quiz1*10)+(quiz2*10)+(quiz3*10)+(quiz4*10)+(quiz5*10))/5)*.2) + (((midterm1+midterm2)/2)*.4) + (final*.4);
//Grade
if (grade > 89){
letter[i] = 'A';
}
else if (grade > 79){
letter[i] = 'B';
}
else if (grade > 69){
letter[i] = 'C';
}
else if (grade > 59){
letter[i] = 'D';
}
else if (grade <= 59){
letter[i] = 'F';
}
}//End for
//Close files
in_file.close();
}//End functionvoid output_scores(int id[], char Name[], double avg[], char letter[], int size){
//High score and ID tracking
int highstudent;
double highscore;
highscore = avg[0];
highstudent = id[0];
cout << "---------------------------------------------------" << endl;
cout << "Course Report" << endl;
cout << "---------------------------------------------------" << endl;
//Out of student's IDs, average and grade
for (int i=0; i < size; i++){
cout << " " << id[i] << " " << avg[i] << " (" << letter[i] << ") " << endl;
}
//Finds highest score
for (int i=1; i < size; i++){
if (avg[i] > avg[0]){
highscore = avg[i];
highstudent = id[i];
}
}//End for loop
//Displays high score
cout << "---------------------------------------------------" << endl;
cout << "*** " << highstudent << " had the best score with an average of " << highscore << "! ***" << endl << endl;
}//End function