Calculate max value of variables

[TheKnight]

How can I calculate the max value of variables. Let's say I have three different variables which are later assigned and is there some command which will order them from the maximum to minimum and reverse. Thanks.

[webJose]

Are you talking about sorting 3 values in ascending or descending order?

[TheKnight]

Order 3 values and calculate which one is highest put it first 2nd and 3rd.

[webJose]

And where is it that you are stuck? Show your code.

[TheKnight]

#include <iostream>

using namespace std;

int main()
{
	
	int apples;
	cout << "Enter the value of apples : " << endl;
	cin >> apples;
	cout << "The value of apples is " << apples << "." << endl;

	int grapes;
	cout << "Enter the value of grapes : " << endl;
	cin >> grapes;
	cout << "The value of grapes is " << grapes << "." << endl;

	if (apples > grapes)
	{
		cout << "Apples have greater value than grapes." << endl;
	}
	else if (apples == grapes)
	{
		cout << "Grapes have equal value with apples." << endl;
	}
	else
	{
		cout << "Grapes have greater value than apples." << endl;
	}

	return 0;

}

Simple program so that you input the values for grapes and apples and then sort them. Well, here are two variable but guess it can later be done with more.

[webJose]

The code looks good to me. Try to expand it to one more variable. It is not that difficult. Go for it.

[TheKnight]

It was better with two values because it needed only that much code because with 3 values the code will expand with a lot more if functions. I tried something far from perfect just some simple demonstration with 3 variables. I don't know how it picks any of the functions and why it doesn't pick the other.

#include <iostream>

using namespace std;

int main()
{
	
	int apples;
	cout << "Enter the value of apples : " << endl;
	cin >> apples;
	cout << "The value of apples is " << apples << "." << endl;

	int grapes;
	cout << "Enter the value of grapes : " << endl;
	cin >> grapes;
	cout << "The value of grapes is " << grapes << "." << endl;

	int bananas;
	cout << "Enter the value of bananas : " << endl;
	cin >> bananas;
	cout << "The value of bananas is : " << bananas << endl;

	if (apples > grapes && apples > bananas)
	{
		cout << "Apples have greater value than grapes and bananas." << endl;
	}
	if (grapes > apples && grapes > bananas)
	{
		cout << "Grapes have greater value than bananas and apples." << endl;
	}
	if (bananas > apples && bananas > grapes)
	{
		cout << "Bananas have greater value than grapes and apples." << endl;
	}
	if (apples == grapes)
	{
		cout << "Apples and grapes have equal value." << endl;
	}
	if (apples == bananas)
	{
		cout << "Apples and bananas have equal value." << endl;
	}
	if (bananas == grapes)
	{
		cout << "Bananas and grapes have equal value." << endl;
	}

	return 0;

}

[buffbill]

Have you tried nesting a couple of ternary conditional expression operators ?:
I`m not saying that this may not be frowned on by some!
a=(x>y?x:(a>z?a:z));

[TheKnight]

Well, tried but don't know how to order them. Ok, thanks anyway.

[kfmfe04]

as a beginner, this is a good opportunity to learn about various sorting algorithms:

http://en.wikipedia.org/wiki/Heap_sort
http://en.wikipedia.org/wiki/Bubble_sort
http://en.wikipedia.org/wiki/Quick_sort

even better, implement them all in C++ and make sure that you get the same result from all three

[webJose]

Well, Quicksort is non-deterministic, so Quicksort might yield different results in some cases. This is why the STL provides two sorts: std::sort() and std::stable_sort().

[kfmfe04]

ok,

non-deterministic

sounds quite scary when you are sorting

perhaps a better term is that Quicksort is could be unstable, which could be unsettling, but if you look at the case example, for most cases, having an unstable sort is not a problem

http://en.wikipedia.org/wiki/Stable_sort#Stability

edit: I suspect we are way beyond the capabilities of the OP - hopefully, the OP will get something out of this discussion