C++ Code

audiobliss

I just finished writing code for another C++ program, and I just had to share.

This problem was rather involved, or at least for my level of expertise, because of all the loops and input validation. We JUST covered the chapter on loops this past week. Last class period one guy said we all better start on this lab early because the last problem is a pain, so I wasn't looking forward to it. But, I just sat down and wrote it, and besides a few missing semicolons, it runs prefectly. No exaggeration, missing semicolons is the only thing I had wrong. I probably spent about 25 - 30 minutes on it, I guess.

Anyhoo, I was just so excited that I wrote a complicated program perfectly on the first try, I had to share! :D

Of course, I haven't tested the program with different data THAT extensively...but I'm pretty sure it doesn't have any hiccups.

Write a program that calculates the occupancy rate for a hotel. The program should start by asking the user how many floors the hotel has. A loop should then iterate once for each floor. In each iteration, the loop should ask the user for the number of rooms on the floor and how many of them are occupied. After all the iterations, the program should display how many rooms the hotel has, how many of them are occupied, how many are unoccupied, and the percentage of rooms that are occupied. The percentage may be calculated by dividing the number of rooms occupied by the number of rooms.

NOTE: It is traditional that many hotels do not have a 13th floor. The loop in this program should skip the entire 13th iteration.

Input validation: Do not accept a value less than 1 for the number of floors. Do not accept a number less than 10 for the number of rooms on a floor. Do not accept a value for occupied rooms on a floor that exceeds the number of rooms on that floor.

And my program: (Sorry for the formatting...I can't get spaces to show up in the post.)

#include "stdafx.h"
#include< iostream >
#include< iomanip >
using namespace std;


int main()
{
int totalFloors, rooms, occupied, totalRooms = 0, totalOccupied = 0, empty;
double percentage;

//Get input
cout << "How many floors does the hotel have? ";
cin >> totalFloors;

//Input validation
while (totalFloors < 1)
{
cout << "Error; please enter the number of floors again: ";
cin >> totalFloors;
}

//Main loop
for (int floor = 1; floor <= totalFloors; floor++)
{
if (floor == 13)
continue;

cout << "How many rooms are on floor " << floor << " ? ";
cin >> rooms;

while (rooms < 10)
{
cout << "Please enter at least 10. ";
cin >> rooms;
}

//Update accumulator
totalRooms += rooms;

//Get more input
cout << "How many of the rooms on floor " << floor << " are occupied? ";
cin >> occupied;

while (occupied > rooms)
{
cout << "The number of occupied rooms cannot exceed " << endl;
cout << "the total number of rooms on the floor." << endl;
cout << "Please enter a valid number. ";
cin >> occupied;
}

//Update accumulator
totalOccupied += occupied;

}

//Calculate output
empty = totalRooms - totalOccupied;
percentage = totalOccupied / static_cast< double >(totalRooms);

//Display output
cout << "\n\n\n";
cout << "The hotel has " << totalRooms << " rooms total." << endl;
cout << "Total occupied rooms is " << totalOccupied << "." << endl;
cout << "Total unoccupied rooms is " << empty << "." << endl;
cout << fixed << showpoint << setprecision(2);
cout << "The percentage of occupied rooms is " << (100 * percentage) << "%." << endl;

//Pause to allow user to view output
cout << endl << endl;
system("pause");

return 0;
}

beardog03

congrats !

whoda thunk you were smart ?!!!!:eek:



j/k


that`s actually pretty cool stuff
must be a gas when it does what you want/tell it to do.....

AsSiMiLaTeD

HAHA, brings back some memories of my college days. Wait until you get to Assembly language, that's where the fun really starts...

bobman1235

Dammit PM, you beat me to it. "Real men write assembly."

AsSiMiLaTeD

bobman1235 wrote: »

Dammit PM, you beat me to it. "Real men write assembly."

Too funny...that's twice this week someone's beat you to the punch...

beardog03

I can just see a conversation at your guy`s house now..


0010011100010101010011011110100101



yep !
the she said,

1o10010101o100o01o100100001111101010101010101

audiobliss

Hahahahaha. Thank heavens, we're not touching assembly language! I'm perfectly happy letting some other programming language represent my commands!

bobman1235

Polkmaniac wrote: »

Too funny...that's twice this week someone's beat you to the punch...

Gettin' slow in my old age

Polk addict

Dude, that's good... I stopped after I learned JavaScript cause that's all I needed...

exalted512

beardog03 wrote: »

I can just see a conversation at your guy`s house now..


0010011100010101010011011110100101



yep !
the she said,

1o10010101o100o01o100100001111101010101010101

man, thats harsh, did she really do that?
-Cody

disneyjoe7

Ok so really good at C ++ here, I have something I like someone to check out for me.

disneyjoe7

bobman1235 wrote: »

Dammit PM, you beat me to it. "Real men write assembly."

Yes "Real men write assembly", but to be honest I don't know C++ or just I haven't learned it. Or just I don't really have the need to learn it.

wallstreet

Do they even teach assembly anymore? What a waste of a semester. The two languages you need to learn are C# and Java. If you want to consider SQL a language, you need to learn that too. After you master that, then move on to coding frameworks, .Net and J2EE. With those in hand, you'll be admirably equipped to battle for a job with an offshore Indian programmer that costs less than half of your starting salary. Good luck!

bobman1235

wallstreet wrote: »

Do they even teach assembly anymore? What a waste of a semester. The two languages you need to learn are C# and Java. If you want to consider SQL a language, you need to learn that too. After you master that, then move on to coding frameworks, .Net and J2EE. With those in hand, you'll be admirably equipped to battle for a job with an offshore Indian programmer that costs less than half of your starting salary. Good luck!

Waste of a semester? I use assembly every day. Do anything with embedded systems or firmware and you'll need assembly. Do any OS work and you'll most likely need assembly. Knowing assembly even if you don't use it gives you a much larger understanding of how a computer actually works, as opposed to high level languages that really give you no idea of what's actually going on. You may not care, but plenty of people do, otherwise your C# and J2EE wouldn't have anything to run on.

m00npie

wallstreet wrote: »

Do they even teach assembly anymore? What a waste of a semester. The two languages you need to learn are C# and Java. If you want to consider SQL a language, you need to learn that too. After you master that, then move on to coding frameworks, .Net and J2EE. With those in hand, you'll be admirably equipped to battle for a job with an offshore Indian programmer that costs less than half of your starting salary. Good luck!

I know one language that sets me apart from all of the offshore folks... care to guess what that is?

disneyjoe7

Well would that be Assembly Hmmm....


BTW building a Company around some Assembly Language device I build to work between TiVo / ReplayTV and 4DTV C-Band satellite.

www.dvrblackbox.com

Sami

wallstreet wrote: »

The two languages you need to learn are C# and Java.

No, C++ is still the king of the hill and will be so for a long time to come. Sure there are plenty of website building jobs out there that C# is good for but for serious software design nothing beats C++ and some low level C is in most cases good enough, you can do some enhancing with ASM but most of the times it's not needed (thank god).

jakelm

beardog03 wrote: »

I can just see a conversation at your guy`s house now..


0010011100010101010011011110100101



yep !
the she said,

1o10010101o100o01o100100001111101010101010101

You actually only said about 2 or 3 letters right there..



HMMMM....hardly a sentence....smarty:p


Ill build the computers and let you guys develope the software to help me do my job easier.........

......hahahaha suckersssssssss...:D

AsSiMiLaTeD

01010011 01100011 01110010 01100101 01110111 00100000 01111001 01101111 01110101 00100000
01100111 01110101 01111001 01110011 00101100 00100000 01001001 00100111 01101101 00100000
01100111 01101111 01101001 01101110 01100111 00100000 01101000 01101111 01101101 01100101

jakelm

Polkmaniac wrote: »

01010011 I 01100011 a 01110010 m 01100101 P 01110111 o 00100000 l 01111001 k 01101111 m 01110101 a 00100000 n
01100111 i 01110101 a 01111001 c 01110011 a 00101100 n 00100000 d 01001001 i 00100111 a 01101101 m 00100000 a
01100111 n 01101111 i 01101001 d 01101110 i 01100111 o 00100000 t 01101000 t 01101111 o 01101101 o 01100101 !

bobman1235

Polkmaniac wrote: »

01010011 01100011 01110010 01100101 01110111 00100000 01111001 01101111 01110101 00100000
01100111 01110101 01111001 01110011 00101100 00100000 01001001 00100111 01101101 00100000
01100111 01101111 01101001 01101110 01100111 00100000 01101000 01101111 01101101 01100101

I don't know what's more sad, that I translated that, or that it only took me two minutes.

I need to really analyze my life here.

Sami

audiobliss wrote: »

Anyhoo, I was just so excited that I wrote a complicated program perfectly on the first try, I had to share! :D

I just compiled your code and after the first run I found a serious bug in the code, want me to tell you where or do you want to try to find out yourself? There's at least one other.

Let me know if you need any hints.

petrym

Is it "int"? That doesn't work for really large numbers...
or is it: if (floor == 13)?

Sami

No, I think int has enough capacity. int = signed int, -32768 to 32767. Although he should have used unsigned int, 0 to 65535, and check for negative inputs.

The biggest problem comes when a user enters characters instead of integers. You have to remember C++ is a strong-typed language. I already PM'ed AB solution for it as I didn't think anyone here would be interested to see it.