Can you fix my code the error are line $25\text{'}$it$\text{'}$ does not name a type, line $27$ expected primary$-$expression before $\text{'})\text{'}$ token, line $29\text{'}$it$\text{'}$ was not declared in this scope, line $38$ range$-$based 'for' loops are not allowed in C$++98$ mode, line $39$ request for member 'firstName', 'lastName', $\text{'}$id$\text{'},$ 'gpa' in student, which is of non class type 'const int', line $45\text{'}$it does not name a type, line $47$ expected primary expression before $\text{'})\text{'}$ token, line $49\text{'}$it$\text{'}$ was not declared in this scope, line $52$ 'nullptr' was not declared in this scope, line $83$ passing 'const StudentList' as ;this' argument of 'Student$*$ StudentList::findStudent$($const string&$)\text{'}$ discards qualifiers $[-$fpermissive$]$ : #include

#include

#include

#include

using namespace std;

ifstream infile;

struct Student $\{$

string firstName;

string lastName;

string id;

double gpa;

$\}$;

class StudentList $\{$

list students;

public:

void addStudent$($const Student &student$)\{$

students.push$\_$front$($student$)$;

$\}$

void deleteStudent$($const string &id$)\{$

line $25$: auto it $=$ find$\_$if$($students$.$begin$(),$ students.end$(),[$&$]($const Student &s$)\{$

line $27$: $\})$;

line $29$: if $($it $!=$ students.end$())\{$

students.erase$($it$)$;

cout $<<$ "Student ID: $"<<$ id $<<"$ has been deleted" $<<$ endl;

$\}$ else $\{$

cout $<<$ "Student ID: $"<<$ id $<<"$ not found" $<<$ endl;

$\}$

$\}$

void print$()$ const $\{$ line $38$: for $($const auto &student : students$)\{$

line $39$: cout $<<$ student.firstName $<<""<<$ student.lastName $<<""<<$ student.id $<<""<<$ student.gpa $<<$ endl;

$\}$

cout $<<$ endl;

$\}$

Student$*$ findStudent$($const string &id$)\{$

line $45$: auto it $=$ find$\_$if$($students$.$begin$(),$ students.end$(),[$&$]($const Student &s$)\{$

return s$.$id $==$ id;

line $47$: $\})$;

line $49$: if $($it $!=$ students.end$())\{$

return &$(*$it$)$;

$\}$ else $\{$

line $52$: return nullptr;

$\}$

$\}$

void changeStudent$($const string &id$,$ double newGpa$)\{$

Student $*$student $=$ findStudent$($id$)$;

if $($student$)\{$

student$->$gpa $=$ newGpa;

$\}$ else $\{$

cout $<<$ "Student ID: $"<<$ id $<<"$ not found" $<<$ endl;

$\}$

$\}$

$\}$;

void processAdd$($StudentList &students$)\{$

Student s;

infile $>>$ s$.$firstName $>>$ s$.$lastName $>>$ s$.$id $>>$ s$.$gpa;

students.addStudent$($s$)$;

students.print$()$;

$\}$

void processDelete$($StudentList &students$)\{$

string id;

infile $>>$ id;

students.deleteStudent$($id$)$;

students.print$()$;

$\}$

void processSearch$($const StudentList &students$)\{$

string id;

infile $>>$ id;

line $83$: Student $*$student $=$ students.findStudent$($id$)$;

if $($student$)\{$

cout $<<$ "Information Located: $"<<$ student$->$firstName $<<""<<$ student$->$lastName $<<""<<$ student$->$id $<<""<<$ student$->$gpa $<<$ endl;

$\}$ else $\{$

cout $<<$ "Information for Student ID: $"<<$ id $<<"$ not found." $<<$ endl;

$\}$

$\}$

void processChange$($StudentList &students$)\{$

string id;

double newGpa;

infile $>>$ id $>>$ newGpa;

students.changeStudent$($id$,$ newGpa$)$;

students.print$()$;

$\}$

int main$()\{$

char code;

StudentList students;

infile.open$("$updates$.$txt$")$;

while $($infile $>>$ code$)\{$

switch $($code$)\{$

case $\text{'}$A$\text{'}$:

case $\text{'}$a$\text{'}$:

processAdd$($students$)$;

break;

case $\text{'}$D$\text{'}$:

case $\text{'}$d$\text{'}$:

processDelete$($students$)$;

break;

case $\text{'}$S$\text{'}$:

case $\text{'}$s$\text{'}$:

processSearch$($students$)$;

break;

case $\text{'}$C$\text{'}$:

case $\text{'}$c$\text{'}$:

processChange$($students$)$;

break;

default:

cout $<<$ "Invalid code $"<<$ code $<<$ endl;

break;

$\}$

$\}$

infile.close$()$;

return $0$;

$\}$