Nested if else if statements with multiple variable for loops - vb.net

Question

Below is the code I am using for a program which is to be used for an airplane seating selection. It seats passengers based upon either a smoking or non-smoking preference.
I am using nested if else statements with 2 variables in each as counters and accumulators as well as nested if-then-else statements which should fill the assign[] array of structures.
Am I unable to copy arrays of structures directly into other arrays of structures using counters for the indexes? Help*/
#include "stdafx.h"
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <iostream>
using namespace System;
using namespace std;
struct passengers{
char plname[15] ;//passenger name in array
char pfname[15];
char stPref;// = seat preference, either S smoking or N non-smoking
int row;//row 0-40 (41 rows) index data, to be used later to match the index to the structure of array index
int col; //column 1-3
};struct passengers waiting[41];//Hard Coded Array of struct passengers waiting members for use with output testing
//= {{"WOODS","BILL",'S',10,2},{"BORAX","M T", 'S', 9, 2},{"THOMAS","LINDA",'N',7,2},{"HAYWARD","MARK",'N',7,3},{"SWIFT","TOM",'N',8,1},{"DOBBS","DR.",'N',8,2},{"GOLDEN","VINNIE",'N',8,3},{"HACKER","E",'N',5,3},{"RUSSEL","STEVE",'N',5,1},{"CHAMPION","SPARKY",'N',3,1},{"INNERMENTS","TEX",'S',8,2}};
//Hard Coded Array of struct passengers all[41]. This is a list of all people that want on the plane
struct passengers all[41] = {{"SMITH","JOHN",'N',3,2},{"STEVE","JOBS",'S',9,3},{"CAPONE","AL",'N',3,2},{"JACKSON","MICHAEL",'S',8,1},{"HUMPHREY","H",'S',8,2},{"RINEHART","JIM",'N',3,1},{"EASTMAN","KEN",'N',1,1},{"WINSTON","SALEM",'S',8,3},{"SMYTHE","SUSAN",'S',9,1},{"KENDRIKS","AL",'N',9,2},{"ALLISON","DENNIS",'S',9,3},{"GREENBLATT","RICHARD",'S',10,1},{"DAVIS","BOB",'S',10,3},{"WOODS","BILL",'S',10,2},{"BORAX","M T",'S',9,2},{"HENRY","JOHN",'N',1,2},{"STEVASON","E",'N',1,3},{"WILLIAMS","KEN",'N',2,1},{"SMITH","MARTHA",'N',2,2},{"KOCH","JOE",'N',2,3},{"PACKARD","H P",'N',3,3},{"RINEHART","JANE",'N',3,2},{"SWENSON","CECIL",'N',4,1},{"CORY","TROY",'N',4,2},{"BYES","NICKOLINE",'N',4,3},{"BYES","JENNIFER",'N',5,3},{"HARRIS","JOHN",'N',5,2},{"HARRIS","JUDY",'N',5,1},{"HARTMAN","F G",'N',6,1},{"SOUSE","D T",'N',6,2},{"JOHNSON","MAGIC",'N',6,3},{"LAMPTON","GEORGE",'N',7,1},{"THOMAS","LINDA",'N',7,2},{"HAYWARD","MARK",'N',7,3},{"SWIFT","TOM",'N',8,1},{"DOBBS","DR.",'N',8,2},{"GOLDEN","VINNIE",'N',8,3},{"HACKER","E.",'N',5,3},{"RUSSEL","STEVE.",'N',5,2},{"CHAMPION","SPARKY.",'N',3,1},{"INNERMENTS","TEX.",'S',8,2}};
struct passengers assign[30];//Array of structures for the actual seating assignment
//Initializes char array plane so all seats are empty
char plane[10][3] = { {'E','E','E'},{'E','E','E'},{'E','E','E'},{'E','E','E'},{'E','E','E'},{'E','E','E'},{'E','E','E'},{'E','E','E'},{'E','E','E'},{'E','E','E'} };
int x,y,z,a,b,c,count = 0;//Declares integer variables for use with accumulators and counters.
void entList();//Enter function prototype
void prtList();//Print function prototype
void seatPrgm();//Enters Passengers based on seat availability
/******************************************* Main Program ********************************************************************/
int main()
{
/********** Decision, Selection, Iteration Section... Assigns Seats based on Availability **********/
while (z<41)
{
//seatPrgm();
//************************************ User Case Selection Menu *******************************************/
char menu = '#';//Declares menu a character variable.This variable will be used for the menu selections and has a default value
//of # to ensure no problems with it's buffer.
printf("\t\t\tWelcome to Fast Flights.\n\n\t\tPlease Make a selection from thew menu\n\n");//User Prompt
printf("\t\tE to Enter Passenger Seating Information\n\t\tP to Print the Assigned Seating Report\n\t\tQ to quit.\n\n");
scanf("%c",&menu);//scans in the menu selection
while(menu !='Q')//While variable menu does not equal Q...
{
menu =(toupper(menu));
switch(menu)//Switch Statement generates a case selection menu...
{
case 'E' : entList();
printf("\n\t\t\n\n");
system("pause");
scanf("%c",&menu);
break;
case 'P' : prtList();
printf("\n\t\t\n\n");
system("pause");
scanf("%c",&menu);
break;
default : if (menu!= 'Q')
printf("\n\t\nPlease enter one of the selections\n");
else printf("\n");
scanf("%c",&menu);
system("pause");
break;
}
}
system("pause");//namespace system pause Pauses the program long enough to display data
return 0;//returns null value to int main()
}
}
void entList()
{ /*count=0;
printf("\tPlease enter passenger name and seating preferences\n");
printf("\nPassenger Name:");
gets(assign[count].pname);
// scanf("%c"); // this gets the enter key left over in the buffer - do not need this after a gets
printf("\nSeating Preference Smoking or Non-Smoking? Please enter S or N:");
scanf("%c",&assign[count].stPref);
// it was skipping because I had formatting in the scanf statement
printf("\nEnter the Seat Row Number:");
scanf("%c",&assign[count].row);
printf("\nEnter the Seat Column Number:");
scanf("%c",&assign[count].col);
count++;*/
}
//Print Function Header
void prtList()
{
/************** This section prints the first header for the Non-Smoking Section ***********************/
printf("\n\n");
for (x = 0; x<80; x++)
printf("*"); //Prints the asterisks in the heading
printf("\n");
for (x = 0; x<6; x++)
printf("*");
printf("\n");
printf("*\t\t\tNon Smoking Section\n");
printf("*\n");
for (x = 0; x<80; x++)
printf("*");
for (x = 0; x<6; x++)
printf("*");
printf("*\n");
/****************** Prints the Non-Smoking Section Seating Assignments ****************************************/
printf("\n");
x=0;
for(a=0;a<7;a++)
{
for(b=0;b<3;b++) //Prints passengers assign.[30] structure of arrays Non Smoking Section last name and first name members
{
printf("\t%s %s\t", all[x].plname,all[x].pfname);
x++;
}
printf("\n");
}
/*************************************************************************************/
/************** This section prints the second header for the Smoking Section ***********************/
printf("\n\n");
for (x = 0; x<80; x++)
printf("*"); //Prints the asterisks in the heading
printf("\n");
for (x = 0; x<6; x++)
printf("*");
printf("\n");
printf("*\t\t\tSmoking Section\n");
printf("*\n");
for (x = 0; x<80; x++)
printf(".");
/******************** Prints the Smoking Section Seating Assignments ********************************************/
for(x=0;x<10;x++)
{
for(y=0;y<3;y++) //print tests output for plane array
printf("%c ",plane[x][y]);
printf("\n");
}
x=0;
for(a=0;a<10;a++)
{
for(b=0;b<3;b++) //print test for all array of structures
{
printf("%s %s\t", all[x].pfname,all[x].plname);
x++;
}
printf("\n");
}
printf("\n");
x=0;
for(a=8;a<11;a++)
{
for(b=0;b<3;b++)
{
printf("\t%s %s\t", assign[x].plname,assign[x].pfname);
x++;
}
printf("\n");
}
/********************** This section prints the third header for the Waiting List *******************************/
printf("\n\n");
for (x = 0; x<80; x++)
printf("*"); //Prints the asterisks in the heading
printf("\n");
for (x = 0; x<6; x++)
printf("*");
printf("\n");
printf("*\t\t\t\tWaiting List\n");
printf("*\n");
printf("*\tNAME\t\tSMOKING CHOICE\t\tROW\t\tCOLUMN\n");
printf("*\n");
for (x = 0; x<80; x++)
printf(".");
/****************************** Prints the Waiting List Info ********************************************************/
printf("\n");
x = 0;
for(a=0;a<11;a++)
{
printf("%i\t%s %s\t\t%c\t\t%i\t\t%i",(a+1),waiting[x].plname,waiting[x].pfname,waiting[x].stPref,waiting[x].row,waiting[x].col);
x++;
printf("\n");
}
/************************************ End of Function *************************************************/
}
void seatPrgm()
{
a=0;
z=0;
for(x=0;x<10;x++)
{
for(y=0;y<3;y++) //FIX THIS!!!!!!!!!!!!!!!!
{
while((plane[x][y]) == 'E') //While empty
{
if((all[z].stPref)=='N')
{
(all[z] = assign[a+1]); //Fills the assigned seats
(plane[x][y] == 'F');
z++;
a++;
}
else
{
(all[z] = assign[a+1]);
(plane[x][y] == 'F');
z++;
a++;
};
};
while(plane[x][y] == 'F') //Puts them on the waiting list if that seat is already occupied or 'F' FULL.
{
while(z<41)
{
(all[z] = waiting[z]);
z++;
a++;
};
};
};
};
}