Please fix, this is incomplete:

#include

#include

#include

#define MAX$\_$LENGTH $10$

typedef struct dataRecord $\{$

int courseID;

char course$[$MAX$\_$LENGTH$+1]$;

int numSeats;

int numRegistered;

$\}$ RECORD$\_$TYPE;

int menu$()$;

void loadDatabase$($FILE $*$ infile, RECORD$\_$TYPE $**$ database, int $*$numRecords$)$;

void processChoice$($FILE $*$ infile, FILE $*$ outfile, int choice, RECORD$\_$TYPE $**$ database, int numRecords$)$;

void displayDatabase$($RECORD$\_$TYPE $**$ database, int numRecords$)$;

void searchDatabase$($RECORD$\_$TYPE $**$ database, int numRecords$)$;

void writeReport$($FILE $*$ outfile, RECORD$\_$TYPE $**$ database, int numRecords$)$;

int main$()\{$

char $*$ infilename $=$ "registrar.txt$"$;

char $*$ outfilename $=$ "report.txt$"$;

FILE $*$ infile;

FILE $*$ outfile;

int numRecords;

RECORD$\_$TYPE $**$ database;

infile $=$ fopen$($infilename$,"$r$")$;

if $($infile $==$ NULL$)\{$

printf$("$Error: Unable to open input file.

$")$;

return $1$;

$\}$

outfile $=$ fopen$($outfilename$,"$w$")$;

if $($outfile $==$ NULL$)\{$

printf$("$Error: Unable to open output file.

$")$;

fclose$($infile$)$;

return $1$;

$\}$

fscanf$($infile$,"\%$d$",$ &numRecords$)$;

database $=($RECORD$\_$TYPE $**)$malloc$($numRecords $*$ sizeof$($RECORD$\_$TYPE $*))$;

loadDatabase$($infile$,$ database, &numRecords$)$;

int choice;

do $\{$

choice $=$ menu$()$;

processChoice$($infile$,$ outfile, choice, database, numRecords$)$;

$\}$ while $($choice $!=4)$;

fclose$($infile$)$;

fclose$($outfile$)$;

free$($database$)$;

return $0$;

$\}$

void loadDatabase$($FILE $*$ infile, RECORD$\_$TYPE $**$ database, int $*$numRecords$)\{$

int i$,$ courseID, numSeats, numRegistered;

char course$[$MAX$\_$LENGTH$+1]$;

for $($i $=0$; i $<*$numRecords; i$++)\{$

fscanf$($infile$,"\%$d$\%$s$\%$d$\%$d$",$ &courseID, course, &numSeats, &numRegistered$)$;

database$[$i$]=($RECORD$\_$TYPE $*)$malloc$($sizeof$($RECORD$\_$TYPE$))$;

strcpy$($database$[$i$]->$course, course$)$;

database$[$i$]->$courseID $=$ courseID;

database$[$i$]->$numSeats $=$ numSeats;

database$[$i$]->$numRegistered $=$ numRegistered;

$\}$

$\}$

int menu$()\{$

int choice;

printf$("$

$1)$ Display contents of database.

$")$;

printf$("2)$ Search the database.

$")$;

printf$("3)$ Write report.

$")$;

printf$("4)$ Quit.

$")$;

printf$("$Enter your choice: $")$;

scanf$("\%$d$",$ &choice$)$;

return choice;

$\}$

void processChoice$($FILE $*$ infile, FILE $*$ outfile, int choice, RECORD$\_$TYPE $**$ database, int numRecords$)\{$

switch $($choice$)\{$

case $1$:

displayDatabase$($database$,$ numRecords$)$;

break;

case $2$:

searchDatabase$($database$,$ numRecords$)$;

break;

case $3$:

writeReport$($outfile$,$ database, numRecords$)$;

break;

case $4$:

printf$("$Bye$!$

$")$;

break;

default:

printf$("$Error: Invalid choice.

$")$;

$\}$

$\}$

void displayDatabase$($RECORD$\_$TYPE $**$ database, int numRecords$)\{$

int i;

printf$("$

COURSE ID COURSE NUM SEATS NUM REGISTERED

$")$;

for $($i $=0$; i $<$ numRecords; i$++)\{$

printf$("\%10$d $\%-8$s $\%10$d $\%14$d

$",$ database$[$i$]->$courseID, database$[$i$]->$course, database$[$i$]->$numSeats, database$[$i$]->$numRegistered$)$;

$\}$

$\}$

void searchDatabase$($RECORD$\_$TYPE $**$ database, int numRecords$)\{$

char course$[$MAX$\_$LENGTH$+1]$;

int i;

printf$("$Enter course name: $")$;

scanf$("\%$s$",$ course$)$;

for $($i $=0$; i $<$ numRecords; i$++)\{$

if $($strcmp$($database$[$i$]->$course, course$)==0)\{$

printf$("$

COURSE ID COURSE NUM SEATS NUM REGISTERED

$")$;

printf$("\%10$d $\%-8$s $\%10$d $\%14$d

$",$ database$[$i$]->$courseID, database$[$i$]->$course, database$[$i$]->$numSeats, database$[$i$]->$numRegistered$)$;

break;

$\}$

$\}$

if $($i $==$ numRecords$)\{$

printf$("$Error: Course not found.

$")$;

$\}$

$\}$

void writeReport$($FILE $*$ outfile, RECORD$\_$TYPE $**$ database, int numRecords$)\{$

int i;

fprintf$($outfile$,"$

COURSE ID COURSE NUM SEATS NUM REGISTERED

$")$;

for $($i $=0$; i $<$ numRecords; i$++)\{$

fprintf$($outfile$,"\%10$d $\%-8$