What is wrong with my code? Can someone correct it$?$

If the input is: StudentInfo.tsv

main.cpp

#include

#include

#include

#include

#include

using namespace std;

$//$ Function to calculate letter grade based on score

char calculateGrade$($double score$)\{$

if $($score $>=90)$

return $\text{'}$A$\text{'}$;

else if $($score $>=80)$

return $\text{'}$B$\text{'}$;

else if $($score $>=70)$

return $\text{'}$C$\text{'}$;

else if $($score $>=60)$

return $\text{'}$D$\text{'}$;

else

return $\text{'}$F$\text{'}$;

$\}$

int main$()\{$

string filename;

$//$Read the file name of the tsv file from the user.

cout $$ "Enter the filename of the TSV file: $"$;

cin $>>$ filename;

ifstream infile$($filename$)$;

if $(!$infile$)\{//$if file not found

cerr $$ "Error: Unable to open file $"$ filename $$ endl;

return $1$;

$\}$

$//$declare vectors to store lastNames,firstNames,midterm$1$Scores,midterm$2$Scores,finalScores

vector lastNames, firstNames;

vector midterm$1$Scores, midterm$2$Scores, finalScores;

$//$Declare variables

string lastName, firstName;

double midterm$1,$ midterm$2,$ final;

$//$Open the tsv file and read the student information.

while $($infile $>>$ lastName $>>$ firstName $>>$ midterm$1>>$ midterm$2>>$ final$)\{$

lastNames.push$\_$back$($lastName$)$;

firstNames.push$\_$back$($firstName$)$;

midterm$1$Scores.push$\_$back$($midterm$1)$;

midterm$2$Scores.push$\_$back$($midterm$2)$;

finalScores.push$\_$back$($final$)$;

$\}$

infile.close$()$;

ofstream outfile$("$report$.$txt$")$;

if $(!$outfile$)\{$

cerr $$ "Error: Unable to create report.txt$"$ endl;

return $1$;

$\}$

$//$ Compute the average exam score of each student.

double midterm$1$Sum $=0,$ midterm$2$Sum $=0,$ finalSum $=0$;

for $($int i $=0$; i $$ lastNames.size$()$; $++$i$)\{$

double averageScore $=($midterm$1$Scores$[$i$]+$ midterm$2$Scores$[$i$]+$ finalScores$[$i$])/3\mathrm{.}0$;

char grade $=$ calculateGrade$($averageScore$)$;

$//$ Output the last names, first names, exam scores, and letter grades of the students into a text file named report.txt$.$

$//$Output one student per row and separate the values with a tab character.

outfile $$ lastNames$[$it$"$ firstNames$[$it$"$

$$ midterm$1$Scores$[$it$"$ midterm$2$Scores$[$it$"$ finalScores$[$it$"$

$$ grade $$ endl;

$//$ Update sums for exam averages

midterm$1$Sum $+=$ midterm$1$Scores$[$i$]$;

midterm$2$Sum $+=$ midterm$2$Scores$[$i$]$;

finalSum $+=$ finalScores$[$i$]$;

$\}$

$//$ Calculate and output exam averages

double midterm$1$Avg $=$ midterm$1$Sum $/$ lastNames.size$()$;

double midterm$2$Avg $=$ midterm$2$Sum $/$ lastNames.size$()$;

double finalAvg $=$ finalSum $/$ lastNames.size$()$;

$//$Output the average of each exam, with two digits after the decimal point, at the end of report.txt$.$

$//$Hint: Use the setprecision manipulator to format the output.

outfile $$ "Averages: midterm$1"$ fixed $$ setprecision$(2)$ midterm$1$Avg

midterm$2"$ fixed $$ setprecision$(2)$ midterm$2$Avg

final $"$ fixed $$ setprecision$(2)$ finalAvg $$ endl;

outfile.close$()$;

cout $$ "Report generated successfully!" $$ endl;

return $0$;

$\}$

Enter the filename of the TSV file: Report generated successfully!

Output is nearly correct, but whitespace differs. See highlights below. Special character legend

Input

Your file content

Expected file content

Enter the filename of the TSV file: Report generated successfully!

Output is nearly correct, but whitespace differs. See highlights below. Special character legend

Input

StudentInfol.tsv

Expected file content

$3$:Compare output

Enter the filename of the TSV file: Report generated successfully!

Output is nearly correct, but whitespace differs. See highlights below. Special character legend