Hi

I have an exercise where I have to write a program that converts from AM to PM

here is it:

Write a program that converts from 24-hour notation to 12-hour notation. For exmple, it should co,vert 14:25 to 2:25 PM. The input is given as two integers. There should e at least three functions, one for input, one to do the conversion and one for outpu. Record the AM/PM information as a value of type char, 'A' for Am and 'P' for PM. Thus, the function for doing the conversion will have a call-by-reference formal parameter of type char to record whether it is AM or PM. (The function will have other parameters as well)



I don't want you to do this exersice for me. That's not my style.
I need some help on how to start. to be more specific, I need help with the conersion part ...

Oh yeah, and a lil' explenation on call-by-reference
The explanation in my book is very complex, I don't know if I undestood everything




I hope you guys will help

http://www.cprogramming.com/tutorial/references.html

We can absolutely provide some guidance. Xing has provided a very good explanation of call by reference. As for the code, can you please post what you have tried so far?

Use the modulo operator for 24h to 12h conversion.
If the hours%12 > 1, then output PM else AM.

That's how I would have done it.
What have you done so far?

-DeeViLiSh

I didn't do much
cuz I didn't know how to start with the conversion
I will post here my code when I'm done
I'm working on it

Xing thx for the link

This post has been edited by dinci5: 31 Oct, 2006 - 08:45 AM

if the hour is greater than 12, just subtract 12 and then tag on a pm

I'm sorry for a,swering this late
I didn't have time yesterday

here is the code that I have till now





the conversion is not a problem, but there is another problem that I don't understand

I have to do it this way:

The input is given as two integers. There should be at least three functions, one for input, one to do the conversion and one for output. Record the AM/PM information as a value of type char, 'A' for Am and 'P' for PM. Thus, the function for doing the conversion will have a call-by-reference formal parameter of type char to record whether it is AM or PM.


"Record the AM/PM information as a value of type char"
I don't understand this
I this sounds stupid, but I just started with c++ and I really don't get it


any suggestions on this?


thx for the help guys, you really are greate

This post has been edited by dinci5: 2 Nov, 2006 - 04:43 AM

Well, it appears as if you will have to modify your program to use functions for the work you're doing, butfor the portion you're asking about, it is simply asking you to set an additional variable for AM or PM. The function may look something like this (example only, not meant for compilation)

As an FYI...you do not need an else if statement in your decision code...an else will suffice.

I don't get it

Can you specify what it is you would like a deeper explanation of?

"Record the AM/PM information as a value of type char, 'A' for Am and 'P' for PM."

how can I do that when the input has to be an integer

I'm confused


"Thus, the function for doing the conversion will have a call-by-reference formal parameter of type char to record whether it is AM or PM"

I don't know how to do this ... I've read the text on the link above, but I don't get it

It does not have to be an integer. You even put this in your post:



Type char is not an integer. Amadeus has given you the idea on how to do it.

This post has been edited by BitByte: 2 Nov, 2006 - 10:38 AM