Very NEW Beginer, Going mad

Hi, I need to write a program that inputs three integers from the keyboard and prints out the smallest and largest, using only the IF statement with no logical AND or OR.
Now this is surpose to be possable, but when I do it I get the two lowest numbers and the two highest numbers.
Driving me nuts please help. I spent 3 hours going over and over the same stuff and I cant see how to do it without useing more then just IF.

Thanks

Chris.

Post your code and we can show you where your mistakes are.

Very easy. Not a single boolean operator. You can even make it smaller using the ? : tierinary operator, but its advanced stuff:

( (condition) ? truepart : falsepart )

A function to find the smallest number would use the same principle as this one:

Code:

---

int Largest(int a, int b, int c)
{
        if (a>b)
        {
                if (a>c)
                        return a;
                else
                        return c;
        }
        else
        {
                if (b>c)
                        return b;
                else
                        return c;
        }
}

---

Its more difficult then that as the challenge I was set said you cant use "else" as well.
If its not possable to do this without "else" then please let me know if it is, I will try yet again to work it out.
Thanks

i wrote your program..just a plain if and a for loop

Code:

---

#include <iostream>

using namespace std;

int main()
{
        int num[3];

        cout << "enter first num: ";
        cin >> num[0];
        cout << "enter second num: ";
        cin >> num[1];
        cout << "enter third num: ";
        cin >> num[2];

        int low = num[0]; //low is set to first
        for(int i = 1; i < 3; i++) //loop for low
        {
                if(low >= num[i])
                {
                        low = num[i];
                }
        }

        int high = num[0]; //high is set to first
        for(i = 1; i < 3; i++)
        {
                if(high <= num[i])
                {
                        high = num[i];
                }
        }

        cout << "low is " << low << endl
                << "high is " << high << endl;

        return 0;
}

---

:P was bored..code kinda long could be shorter...

Hope this helps: No if's, no boolean operators.

(condition ? truepart : falsepart)

Code:

---

highest=( (a>b) ? ((a>c) ? a : c) : ((b>c) ? b : c) );

---

Chris,

You should be eternally grateful for the help you've received here.

Between nextus and Speedy5 (nextus' code being more straightforward), your homework is done.

A simple 'copy & paste' and you've learned, probably, little, or nothing. At least, nothing that you'll retain.

Good show, people. :rolleyes:

(Do you think that there may just be a reason why the moderators and very senior members suggest that students do their own work?)

-Skipper

Agree with Skipper. Let them do there own work first.

I agree with skipper.

Nah, we should write all their programs for them. That way we'll get practice, and they won't learn anything... Less competition for real programmers in the job market later on.

haha..very funny...i agree that it is good practice...but i get so caught up in the question..that like a few moments later the whole program is written....i am sorry..i try not to do it again...:P

You see, I had the same question at school. People asked me how to do it at school so its only fair if I help this person. Plus, I didn't give the WHOLE answer, he still needs to understand it: I gave him an explanation of the ?: operator.

I'll give more broader help next time! ;)

That really didnt do anything for em...if he is just doing basic programming, the teacher will think WTF when he sees that kind of syntax, especially

Code:

---

highest=( (a>b) ? ((a>c) ? a : c) : ((b>c) ? b : c) );

---

also, i doubt he is allowed to use loops as well, seeing as he has just started conditional statements

as basic as it can get without using else's and AND or ORS

Code:

---

#include <iostream.h>

int main (void)
{
        int num1;
        int num2;
        int num3;
        int max;
        int min;

        cout << "Enter Number 1: ";
        cin >> num1;

        cout << "Enter Number 2: ";
        cin >> num2;

        cout << "Enter Number 3: ";
        cin >> num3;

        max = num1;
        min = num1;

        if (num2 > max)
                max = num2;

        if (num3 > max)
                max = num3;

        if (num2 < min)
                min = num2;

        if (num3 < min)
                min = num3;

        cout << "\nLargest number is: " << max << endl;
        cout << "Smallest number is: " << min << endl

---

well, that makes 3 people that just did someone else's homework in this thread. Read This

First of all its not home work, why do you people always think its home work? I am trying to teach myself Its hard you know second why would you think I wont be a real programmer some day. thirdly if I was good enough, I would do peoples home work on here for them and not get anoyed,
I will check back here from time to time.
Also I know how to use IF statements, its just the text book I am reading to learn C++ asked me not to use If statments, otherwise I could of done it.
Thanks.

Its sad how programmers, can me mean.

Also I am sorry did not realise this would go straight to the top pf the pile, dont I have egg on my face.

Well if nothing else I will never give up, till I can programme like everyone else on here.
Thanks, feel beter now (having a bad day)

Ha, I totally forgot about these forums until now when I get the subscription email saying someone responded to this thread...amazing :p

Quote:

---

Originally Posted by chrismax2

First of all its not home work, why do you people always think its home work?

---

Because these are the same questions that get asked and it IS homeword 80% of the time. We're not psychic and since mostly student's post questions, it's a natural assumption

Quote:

---

Originally Posted by chrismax2

I am trying to teach myself Its hard you know second why would you think I wont be a real programmer some day.

---

Because someone wanted to be a jerk and tell you that. The best programmers started at the bottom 2 and whoever said that to you was either frustrated or mean-spirited

Quote:

---

Originally Posted by chrismax2

thirdly if I was good enough, I would do peoples home work on here for them and not get anoyed,

---

The you would deserve the grade instead of them. We don't do people's homework, we try to help them understand so they can do their own homework, and learn how to figure it out for the next program. If you do it for them, they learn nothing and you've stroked your ego.

Quote:

---

Originally Posted by chrismax2

Its sad how programmers, can me mean.

---

This is true, but we are human. I'll bet non-programmers can be mean too.

Code:

---

#include<iostream.h>
main()
{
        highest=( (a>b) ? ((a>c) ? a : c) : ((b>c) ? b : c) );
}

---

im amazed that compiled. never seen syntax like that before. how does it work?

>highest=( (a>b) ? ((a>c) ? a : c) : ((b>c) ? b : c) );
This is just awful. You should avoid nested conditional operators.

>how does it work?
Like this:

Code:

---

if ( a > b ) {
  if ( a > c )
    highest = a;
  else
    highest = c;
}
else {
  if ( b > c )
    highest = b;
  else
    highest = c;
}

---

ok i understand the syntax now... that is the pimpest thing in the universe

Hey Just wanted to apologise, for how I wrote it. I was having a bad day yesterday. To be honest I never read the code they used anyway as I do belive on here you got to learn from yourself. I already had code, but It's not very good and the last thing I want is anyone wanting to see my attempt at programming until I am good and ready.
"Been here done that", Thanks you madea lot of sense.
Chris

I titally agree with you WaltP .... and Chris dont be so angry .. they just advise you

this thread turned pretty sour... what's the big deal with giving the person by example... the way I see it, this time they'll learn by example, so next time they'll be better prepared to do it on their own... then again that only fits in with my way of thinking... somebody who wants the knowledge will look over and try to undestand the code and then try it on their own...

usually I just give some base code for the person to modify to their needs... but that's mostly because I'm too lazy to tailor the code too precisely...