My calculation, delete and update functions dont work (Programming language C)

Code:

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#include<stdio.h>
#include<stdlib.h>
#include<windows.h>
#include<time.h>
void menu();
void first();
void p_info();
void options();
void edit();
void pl_int();
void mudroom();
void sauna();
void fitgym();
void coscen();
void y_center();
void bill();
void deleterec();
void updaterec();
void exit();


FILE *TKAE;

struct clientinfo {
      int code;          //client's pin code//
      char f_name[20];  //client's first name//
      char l_name[40];  //client's last name//
      char country[100]; //client's country//
      char date[15];  //date of client's arrival//
      char tel_no[20];   
                  }
      record; //end structure clientinfo//
     

      int los;          //intended length of stay//
      float roomcharge; //cost for the rooms//
      float expenses;  //cost for added expenses//
      float discount;  //discount given//
      float whatyoupay; //what the client will be required to pay//
      float payment;  //required downpayment//   
      float totalcharges;
     
     
     
     
     

      // Constants for the charges//
        const float HoneymoonSuite = 900.0;        //Base rate - Honeymoon Suite//
        const float PenthouseSuite = 850.0;                //Base Rate - Penthouse Suite//
        const float MasterSuite = 700.0;                //Base Rate - Master Suite//
        const float Bungalows = 550.0;                        //Base Rate - Bungalows//
        const float BusinessRoom = 400.0;                //Base Rate - Business Room// 
        const float StandardRoom = 250.0;                //Base Rate - Standard Room//
        const float MakeUpArtist = 40.0;                //Make-up Artist//
        const float HairStylist = 65.0;                        //Hairstylist//
        const float Manicurist = 40.0;                        //Manicurist//
        const float Pedicurist = 40.0;                        //Pedicurist//
        const float PersonalTrainer = 100.0;        //Personal Trainer//
     

     


int main()
{ 
    HANDLE hand = GetStdHandle(STD_OUTPUT_HANDLE);

    SetConsoleTitle ("                                  TROPICAL KARE AROMATHERAPY AND EUCTICAL HOTEL AND SPA");
   
   
    printf("      Welcome to the Tropical Kare Aromatherapy and Euctical Hotel and Spa\n");
    printf("________________________________________________________________________________\n");
 
    printf("\t\t\t\t\t\t\t 18 Heavenly Boulevard\n");
    printf("\t\t\t\t\t\t\t Relaxation Lane\n");
    printf("\t\t\t\t\t\t\t Cloud Nine\n");
    printf("\t\t\t\t\t\t\t Tel.: 968-7378\n");
    printf("\t\t\t\t\t\t\t Email: [email protected]\n\n\n");
    printf(" **** where YOU are treated with the royalty and exquisiteness YOU deserve ****\n\n\n\n\n");
    system ("pause");
   
    system("cls");
   
    menu();
    system ("pause");
    return 0;
}
//Display Menu
void menu()
{
    int opt;
   
   
    printf("\t\t\t\tT-KAE HOTEL AND SPA \n");
    printf("\t\t\t\t    MAIN MENU\n");
    printf("________________________________________________________________________________\n\n");
    printf("Please select one of the following options:\n\n\n");
    printf("1. New Customers\n\n");
    printf("2. Edit Existing Customer Information\n\n");
    printf("3. Places of Interest\n\n");
    printf("4. Exit\n\n");
    scanf("%d", & opt);
   
    if (opt==1)
        {
                system ("cls");
                first();
        }
    if (opt==2)
        {
                system ("cls");
                edit();
        }     
    if (opt==3)
        {
                system ("cls");
                pl_int();
        }
 
    if (opt==4)
        {
                system ("cls");
                exit();
        }
    if (opt>=5)
        {
                system ("cls");
                printf("\tWe're very sorry but that selection is invalid. Please try again.\n\n\n\n\n");
                system ("pause");
                system ("cls");
                menu();
        }

//End Menu 
}
//First Menu
void first()
{
   
    printf("\t\t\tWelcome to the T-KAE HOTEL AND SPA\n");
    printf("\t\t\t  PERSONAL INFORMATION PAGE\n");
    printf("________________________________________________________________________________\n\n");
    p_info();
}
//End of First Menu
//Personal Info. Menu
void p_info()
{
    int i;
    int y_n;
    int selection;
   
    {      FILE *TKAE; 
        struct clientinfo record={0,"","","","",""};
       
   
        if (( TKAE = fopen("Doc.txt","a"))==NULL )
            {
                    printf("File could not be opened.\n");//end if//
            } 
                    else
            {     
                         
                          printf("Please enter your desired PIN code (4 digits only): ");
                          fscanf(stdin, "%d", & record.code);
                         
                          printf("\nPlease enter your first name: ");
                          fscanf(stdin, "%s", & record.f_name);
           
                          printf("\nPlease enter your last name: ");
                          fscanf(stdin, "%s", & record.l_name);
           
                          printf("\nKindly enter your country: ");
                          fscanf(stdin, "%s", & record.country);
                         
                          printf("\nWhen will you be arriving? (mm/dd/yy) ");
                          fscanf(stdin, "%s", & record.date);
                         
                          printf("\nTelephone Number: ");
                          fscanf(stdin, "%s", & record.tel_no);                         
                         
                            fseek(TKAE, (record.code-1) *
                            sizeof (struct clientinfo), SEEK_SET);
             
                            fwrite(&record, sizeof (struct clientinfo), 1, TKAE);
 
                            fclose( TKAE );
             
    }   

                         
                          printf("\nHow long will you be staying with us? (days) ");
                          scanf("%d", & los );
                          if (los >8)
                              {
                                        discount=(totalcharges*.05);
                              }         
                          else
                              {
                                        discount=0;
                              }
                         
                         
                          system("cls");
                         
   
         
    printf("\t\t\t\tT-KAE HOTEL AND SPA \n");
    printf("\t\t\tPERSONAL INFORMATION VERIFICATION SCREEN\n");
    printf("________________________________________________________________________________\n\n");
    printf("\nPlease verify the following information: \n");
    printf("Type '1' for Yes or '2' for No\n\n");
    printf("%d (Code) ", record.code);
    printf("\n\n%s", record.f_name);
    printf(" %s (Name)\n\n", record.l_name);
    printf("%s (Parish) \n\n",  record.country);
    printf("%s (Arrival Date)\n\n",  record.date);
    printf("%s (Telephone No)\n\n", record.tel_no);
 
   
    scanf("%d", & y_n);
    if (y_n==1)
        {
                system ("cls");
                options();
        }
    if (y_n==2)
        {
                system ("cls");
                first();
                p_info();
        }
    if (y_n>=3)
        {
                system ("cls");
                printf("\tWe're very sorry but that selection is invalid. Please try again.\n\n\n\n\n");
                system ("pause");
                system ("cls");
                first();
                p_info ();
        }     
}
   
//End of Personal Info. Menu   
}
//Room Selection Menu

void options()
{
    int ps;
    int hs;
    int ms;
    int bl;
    int br;
    int sr;
    int choice;
   
   
       
            printf("\t\t\t\tT-KAE HOTEL AND SPA \n");
            printf("\t\t\t\t  ROOM SELECTION\n");
            printf("________________________________________________________________________________\n\n");
            printf("Kindly select the type of room that you desire\n\n\n");
            printf("1. Penthouse Suites\n\n");
            printf("2. Honeymoon Suites\n\n");
            printf("3. Master Suites\n\n");
            printf("4. Bungalows\n\n");
            printf("5. Business Rooms\n\n");
            printf("6. Standard Rooms\n\n");
            printf("7. Main Menu\n\n");
            printf("8. View Current Bill\n\n");
    scanf("%d", & choice);
    if (choice==1)
        {
                  system ("cls");
                  printf("How many Penthouse Suites do you require?: ");
                  scanf("%d", & ps);
                  system ("cls");
                  options();
        }
               
    if (choice==2)
        {
                  system ("cls");
                  printf("How many Honeymoon Suites do you require?: ");
                  scanf("%d", & hs);
                  system ("cls");
                  options();
        }
       
    if (choice==3)
        {
                  system ("cls");
                  printf("How many Master Suites do you require?: ");
                  scanf("%d", & ms);
                  system ("cls");
                  options();
        }
       
    if (choice==4)
        {
                  system ("cls");
                  printf("How many Bungalows do you require?: ");
                  scanf("%d", & bl);
                  system ("cls");
                  options();
        }
       
    if (choice==5)
        {
                  system ("cls");
                  printf("How many Business Rooms do you require?: ");
                  scanf("%d", & br);
                  system ("cls");
                  options();
        }
       
    if (choice==6)
        {
                  system ("cls");
                  printf("How many Standard Rooms do you require?: ");
                  scanf("%d", & sr);
                  system ("cls");
                  options();
        }
       
    if (choice==7)
        {
                  system ("cls");
                  menu ();
        } 
       
    if (choice==8)
        {
                  system ("cls");
                  bill ();                           
        }
   
    if (choice >=9)
        {
                    system ("cls");
                    printf("\tWe're very sorry but that selection is invalid. Please try again.\n\n\n\n\n");
                    system ("pause");
                    system ("cls");
                    options ();
        } 
       
         
        float roomcharge =((ps*PenthouseSuite)+(ms*MasterSuite)+(hs*HoneymoonSuite)+(bl*Bungalows)+
                          (br*BusinessRoom)+(sr*StandardRoom))*los;
       
     
}

//End Room Selection Menu

//Edit Menu
void edit()
{
      int cho;
     
      printf("\t\t\t\tT-KAE HOTEL AND SPA \n");
      printf("\t\t\t\t EXISTING CUSTOMERS\n");
      printf("________________________________________________________________________________\n\n");
     
      FILE *TKAE;
    struct clientinfo record = { 0, "", "", "", "", ""};
   
    if ( ( TKAE=fopen("Doc.txt","r") ) == NULL ) {
    printf( "File could not be located.\n" );
    }
   
    else{   
       
    printf (" %-10s  %-15s%-15s%-10s%-15s%-15s","PIN CODE","FIRST NAME","SURNAME","DATE","TELEPHONE #","COUNTRY");
    printf (" %-10s%-15s%-15s%-10s%-15s%-15s\n","--------","----------","-------","----","-----------","-------");
   
    while ( !feof( TKAE ) ) {
    fread( &record, sizeof( struct clientinfo ), 1, TKAE ); 
        /* display record */
    if ( record.code != 0 ) {
    printf ("  %-10d%-15s%-15s%-15s%-15s%-15s\n", record.code, record.f_name, record.l_name, record.date,record.tel_no, record.country);
        } /* end if */

        } /* end while */
 
        fclose( TKAE ); /* fclose closes the file */
      } /* end else */

    printf ("\n\n\n\n\nTO EXIT TO MAIN MENU PRESS 0\n");
    printf("TO DELETE A RECORD PRESS 1\n");
    printf("TO UPDATE A RECORD PRESS 2\n");
    scanf ("%d",&cho);

    if (cho==0)
    {
      system ("cls");
      menu();
    }
   
    if (cho==1)
    {
        system ("cls");
        deleterec();
    }
   
    if (cho==2)
    {
        system ("cls");
        updaterec();
    }           
   
    if (cho>2)
    {
                  system ("cls");
                  printf("\tWe're very sorry but that selection is invalid. Please try again.\n\n\n\n\n");
                  system ("pause");
                  system ("cls");
                  edit();
    }
   
}   
//End Edit Menu
//Places of Interest Menu
void pl_int()
{
    int sel;
    printf("\t\t\t\tT-KAE HOTEL AND SPA \n");
    printf("\t\t\t\tPLACES OF INTEREST\n");
    printf("________________________________________________________________________________\n\n");   
    printf("1. Mud Room\n\n");
    printf("2. Sauna\n\n");
    printf("3. Fitness Gymnasium\n\n");
    printf("4. Yoga Center\n\n");
    printf("5. Cosmetology Center\n\n");
    printf("6. Main Menu\n\n");
    printf("7. View Current Bills\n\n");
    scanf("%d", & sel);
    system("cls");
    if (sel==1)
        {
                system ("cls");
                mudroom();
        } 
   
      if (sel==2)
        {
                system ("cls");
                sauna();
        } 
   
      if (sel==3)
        {
                system ("cls");
                fitgym();
        } 
   
    if (sel==4)
        {
                system ("cls");
                y_center();
        } 
    if (sel==5)
        {
                system("cls");
                coscen();
        }   
    if (sel==6)
        {
                system("cls");
                menu();
        }
       
        if (sel==7)
        {
                  system ("cls");
                  bill ();                           
        }
       
    if (sel>=8)
        {
                  system ("cls");
                  printf("\tWe're very sorry but that selection is invalid. Please try again.\n\n\n\n\n");
                  system ("pause");
                  system ("cls");
                  pl_int();
        }
}
//End Places of Interest Menu
//Mud Room Menu
void mudroom()
{
    int op;
    printf("\t\tWelcome to the T-KAE HOTEL AND SPA Mud Room\n");
    printf("________________________________________________________________________________\n\n");
    printf("We have experts from all over the world who are versed in the healing power of a mud bath\n\n");
    printf("We can assure you that at the end of your session you will feel as though all"
        "your stress and tension have been taken away from you\n\n\n");
    printf("\t\tListed below is a list of available times for sessions\n\n\n\n");
    printf(" 08:30 - 09:30\n\n");
    printf(" 10:00 - 11:00\n\n");
    printf(" 02:00 - 03:00\n\n");
    printf(" 07:00 - 08:00\n\n");
    printf("1. Back\n");
    scanf("%d", & op);
   
    if (op==1)
        {
              system("cls");
              pl_int();
        }
    if (op>=6)
        {
                system ("cls");
                printf("\tWe're very sorry but that selection is invalid. Please try again.\n\n\n\n\n");
                system ("pause");
                system ("cls"); 
                mudroom();
        }
}
//End Mudroom Menu   

// Sauna Menu
void sauna()
{
    int mm;
    printf("\t\t      Welcome to the T-KAE HOTEL AND SPA Sauna\n");
    printf("________________________________________________________________________________\n\n");
    printf("There are two different sauna rooms where you can go to let go off some 'steam';\t\t\t\t one for each sex\n\n");
    printf("\t    Both saunas are open 24/7 and only guests 15+ are allowed\n\n");
    printf("1. Main Menu\n\n");
    scanf("%d", & mm);
    if (mm==1)
        {
              system("cls");
              pl_int();
        }
    if (mm>=2)
        {
                system ("cls");
                printf("\tWe're very sorry but that selection is invalid. Please try again.\n\n\n\n\n");
                system ("pause");
                system ("cls");
                sauna();
        }
}
// End Sauna Menu
   
// Fitness Gymnasium Menu
void fitgym()
{
    int pt;
    printf("\t      Welcome to the T-KAE HOTEL AND SPA Fitness Gymnasium\n");
    printf("________________________________________________________________________________\n\n");
    printf("1. Female Personal Trainer\n\n");
    printf("2. Male Personal Trainer\n\n");
    printf("3. No Thanks\n\n");
    scanf("%d", & pt);
   
    if (pt==1==2)
        {
                  printf("Your selection has been added to your account\n\n");
                  PersonalTrainer;
                  system ("pause");
                  system("cls");
                  pl_int();
        }
   
    if (pt==3)
        {
                system ("cls");
                pl_int();
        } 
    if (pt>=5)
        {
                system ("cls");
                printf("\tWe're very sorry but that selection is invalid. Please try again.\n\n\n\n\n");
                system ("pause");
                system ("cls");
                fitgym();
        }
}
// End Fitness Gynasium Menu   
//Cosmetology Center Menu
void coscen()
{
    int cc;
    int type;
    printf("\t      Welcome to the T-KAE HOTEL AND SPA Cosmetology Center\n");
    printf("________________________________________________________________________________\n\n");
    printf("1. Makeup Artist\n\n");
    printf("2. Manicurist\n\n");
    printf("3. Pedicurist\n\n");
    printf("4. Hair Stylist\n\n");
    printf("5. No thanks\n");
    scanf("%d", & type);
   
    if (type==1)
        {
                printf("Your selection has been added to your account\n\n");
                MakeUpArtist;
                system("pause");
                system("cls");
                coscen();
        }
       
    if (type==2)
        {
                printf("Your selection has been added to your account\n\n");
                Manicurist;
                system("pause");
                system("cls");
                coscen();
        }
       
    if (type==3)
        {
                printf("Your selection has been added to your account\n\n");
                Pedicurist;
                system("pause");
                system("cls");
                coscen();
        }
       
    if (type==4)
        {
                printf("Your selection has been added to your account\n\n");
                HairStylist;
                system("pause");
                system("cls");
                coscen();
        }         
               
   
    if (type==5)
        {
                system ("cls");
                pl_int();
        }
    if (type>=6)
        {
                system ("cls");
                printf("\tWe're very sorry but that selection is invalid. Please try again.\n\n\n\n\n");
                system ("pause");
                system ("cls"); 
                coscen();
        }
   
}   
//End Cosmetology Center Menu
//Yoga Center Menu
void y_center()
{
    int slect;
    printf("\t\t Welcome to the T-KAE HOTEL AND SPA Yoga Center\n");
    printf("________________________________________________________________________________\n\n");
    printf("\t\tListed below is a list of available times for sessions\n\n\n\n");
    printf(" 10:00 - 11:00\n\n");
    printf(" 01:00 - 02:00\n\n");
    printf(" 04:00 - 05:00\n\n");
    printf(" 08:00 - 09:00\n\n");
    printf("1. No Thanks\n\n");
    scanf("%d", & slect);
    if (slect==1)
        {
                  system ("cls");
                  pl_int();
        }
    if (slect>=2)
        {
                  system ("cls");
                  printf("\tWe're very sorry but that selection is invalid. Please try again.\n\n\n\n\n");
                  system ("pause");
                  system ("cls");
        }
       
       
 }

void bill()
{
            expenses = (MakeUpArtist+Manicurist+Pedicurist+HairStylist+PersonalTrainer);
            totalcharges = (expenses + roomcharge) - discount;
            payment = totalcharges * .10;
           
           
            int mm;
           
            printf("\t\t\t\tT-KAE HOTEL AND SPA \n");
            printf("\t\t\t\t  CURRENT BILL\n");
            printf("________________________________________________________________________________\n\n");           
            printf("Total Charges: $", totalcharges);
            printf("\n\nRoom Charges: $", roomcharge);
            printf("\n\nMiscellaneous Expenses: $", expenses);
            printf("\n\nDiscount: $", discount);
            printf("\n\nRequired Downpayment: $", payment);
            printf ("\n\n\n\n\n\n\n\n\nTO EXIT TO MAIN MENU PRESS 0\n");
            scanf("%d", & mm);
            if (mm==0)
            {
                      system("cls");
                      menu();
            }
     
}

void deleterec()
{
    FILE *TKAE;
   
    printf("\t\t\t\tT-KAE HOTEL AND SPA \n");
    printf("\t\t\t\tDELETE MENU\n");
    printf("________________________________________________________________________________\n\n");
   
   
    struct clientinfo record= { 0, "", "", "", "", "" };
   
    int pcode;
    (record.code = pcode);
   
    printf( "Enter PIN CODE of the account to be deleted: " );
    scanf( "%d", &pcode );
   
    fread( &record, sizeof( struct clientinfo ), 1, TKAE );
    fseek( TKAE, ( record.code - 1 ) * sizeof( struct clientinfo ), SEEK_SET );
   
    if ( pcode = 0 )
    printf( "Account %d does not exist.\n", record.code );
        else {
            fseek( TKAE, ( record.code - 1 ) *sizeof( struct clientinfo ), SEEK_SET );
            fwrite( &record,sizeof( struct clientinfo ), 1, TKAE );
            printf("RECORD DELETED!!!\n\n");
            system ("pause");
            }
    system("cls");
    main();





   
 }
 
void updaterec()
{
      FILE *TKAE;
      struct clientinfo record= { 0, "", "", "", "", "" };
 
    int change;
    int pcode;
    pcode=record.code;
   
    printf( "Enter PIN CODE of the account to be updated: " );
    scanf( "%d", &pcode );
    fseek( TKAE, ( pcode - 1 ) * sizeof( struct clientinfo ), SEEK_SET );
    fread( &record, sizeof( struct clientinfo ), 1, TKAE );
    if ( pcode == 0 )
    printf( "Account %d does not exist.\n", pcode );
        else {
            printf("%-10d%-15s%-15s%-15s%-15s%-15s",record.code, record.f_name, record.l_name, record.tel_no, record.country);
            printf("Press '1' to change this account or '2' to go back to the Main Menu");
            scanf("%d", & change);
            }
           
    if (change==1)
    {
                  }
   
       
        system("cls");
        edit();   
}
             
void exit()
{
   
                printf("\t\tTropical Kare Aromatherapy and Euctical Hotel and Spa\n");
                printf("________________________________________________________________________________\n\n");
                printf(" The Management and Staff of the T-KAE HOTEL AND SPA hopes that you will enjoy  your stay with"
                "us and will be delighted if you choose to return and visit with \t\t\t\t\tus again\n\n");
                printf("\t\tWE HOPE THAT YOU WILL ENJOY THE REST OF YOUR DAY\n\n\n");
            Sleep (2000);   
                      system ("cls");
    printf ("\n\n\n\n\n\n\n\n\t\t\t----------------------------------\n\n");
    printf ("\n\n");
    printf ("\t\t\t----------------------------------\n");
            Sleep (200); 
    system ("cls");
    printf ("\n\n\n\n\n\n\n\n\t\t\t----------------------------------\n\n");
    printf ("\t\t\t\t  EXI\n\n");
    printf ("\t\t\t----------------------------------\n");
   
    Sleep (200);
   
    system ("cls");
    printf ("\n\n\n\n\n\n\n\n\t\t\t----------------------------------\n\n");
    printf ("\t\t\t\t  EXITIN\n\n");
    printf ("\t\t\t----------------------------------\n");
    Sleep (200);
   
    system ("cls");
    printf ("\n\n\n\n\n\n\n\n\t\t\t----------------------------------\n\n");
    printf ("\t\t\t\t  EXITING..\n\n");
    printf ("\t\t\t----------------------------------\n");
    Sleep (100);
   
    system ("cls");
    printf ("\n\n\n\n\n\n\n\n\t\t\t----------------------------------\n\n");
    printf ("\t\t\t\t  EXITING.....\n\n");
    printf ("\t\t\t----------------------------------\n");
    Sleep (100);
   
    system ("cls");
    printf ("\n\n\n\n\n\n\n\n\t\t\t----------------------------------\n\n");
    printf ("\t\t\t\t  EXITING.......\n\n");
    printf ("\t\t\t----------------------------------\n");
    Sleep (1000);
               
               
                exit (1);
}

---

I have not seen the "memory address of" operator, used with a space between itself, and the variable, ie:

& variable;

Don't you want:

&variable;

instead?

Isn't it odd to you that after all these lines of code, you have several problems with it's accuracy? I suggest you write some code, then test it, get it working right - *then* write some more code. Testing as you go.

Worse thing is to have hundreds of lines of code, none of it tested for logic (accuracy), or for proper syntax. Now it's time to debug it, and what do you know, you've got 93 errors just in the syntax part!! That's a real "Oh ........!" moment, that can easily be prevented, just by testing as you go.

You shouldn't use recursion for user interface functions like that. It will lead to stack overflow if the program is used long enough. That also means don't call main(). Instead, if you want to do something twice, use a loop.