Help with finding highest and lowest age

Hi, I'm writing a program that find the largest and lowest number from inputted values but I don't know how to get the program to do it.

See below the code I have so far:

Code:

---

#include(iostream)
using namespace std;

int bob,tim,harry,jon;

do
{
  cout << "Enter BOB'S age: ";
  cin >> bob;
  if (bob<0)
  {
      cout << "Error, number cannot be under 0";
  }
}
while (bob<0)

do
{
  cout << "Enter JIM'S age: ";
  cin >> jim;
  if (bob<0)
  {
      cout << "Error, number cannot be under 0";
  }
}
while (bob<0)
do
{
  cout << "Enter TIM'S age: ";
  cin >> tim;
  if (tim<0)
  {
      cout << "Error, number cannot be under 0";
  }
}
while (tim<0)
do
{
  cout << "Enter HARRY'S age: ";
  cin >> harry;
  if (harry<0)
  {
      cout << "Error, number cannot be under 0";
  }
}
while (harry<0)

}

---

How could I get the program to find the highest AND lowest aged people. Do I need to totally change this code?


This is what I would like it to look like:

Code:

---

Enter BOB'S Age: 45
Enter JIM'S Age: 64
Enter TIM'S Age: 22
Enter HARRY'S Age: 65

The oldest fellow is: HARRY at 65
The youngest fellow is: TIM at 22

---

Thanks in advance for your help

I don't see a main function there.

Since you're dealing with 4 individual variables, there's no way to find the largest or smallest without explicitly doing 3 compares in each case. (Well, some compares might be re-usable, but let's not over-complicate.)

If you were storing the entries in an array (or any collection, a std::map might be appropriate here) it would be much easier.

you could remember the age in a vector and just sort the vector. if you can't use the sort function, you could write one of your own.

Code:

---


#include <vector>
#include <algorithm>

int _tmain(int argc, _TCHAR* argv[])
{
        vector <int> v1;
        vector <int>::iterator Iter1;

        v1.push_back(82);
        v1.push_back(11);
        v1.push_back(76);
        v1.push_back(78);
        v1.push_back(33);

        cout << "Original vector v1 = ( " ;
        for ( Iter1 = v1.begin( ) ; Iter1 != v1.end( ) ; Iter1++ )
                cout << *Iter1 << " ";
        cout << ")" << endl;

        sort(v1.begin( ), v1.end( ) );
        cout << "Sorted vector v1 = ( " ;
        for ( Iter1 = v1.begin( ) ; Iter1 != v1.end( ) ; Iter1++ )
                cout << *Iter1 << " ";
        cout << ")" << endl;

        _getch();

        return 0;
}

---

Note that the desired output includes the name as well as the age. A std::multimap<int,std::string> would do nicely for that without any loops or whatnot.

Quote:

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Originally Posted by Lindley

Note that the desired output includes the name as well as the age. A std::multimap<int,std::string> would do nicely for that without any loops or whatnot.

---

right...well the OP could customize it according to his needs.

Wouldn't something like this work, then do the same to find the lowest? I'm a beginner myself so I'm curious to the answer of this thread also.

Code:

---

int highest;

highest = bob;

if (highest < tim)
        highest = tim;

else if (highest < jon)
        highest = jon;

else if (highest < harry)
        highest = harry;

---

That would certainly get you the highest value. By itself it would *not* also give you the ability to print out the name of the corresponding person, if that's a requirement.