HELP - with a custom calculator!!!!

shedokan · February 6, 2008

Hi,

Can someone help me with creating this calculator or tell me how to do it best?

I have 20 different fields and in each you put a different series of numbers in (each one has 6 digits in it) also I have one field called "number1" and one called "targetnumber"

in the field called "numebr1" you put (type) a certain series of digits (6 numbers). in the middle you have 2 fields for modifier numbers. the Script has to place different series of digits in these fields from the list of (about) 20 different options in the 2 modifier fields - so that : Number 1 + modifier1 + modyfier 2 = (will eqal) "targetnumber" (which you also need to type in the begining) until it finds 2 numbers that fit. for example :

Number1 : 1-2-3-4-5-6

Modifier 1 :

modifier 2 :

TargetNumber : 4-5-6-7-8-9

the script choses the correct 2 options to put between the target number to number 1 out of the 20 options you typed in the begining. and lets say 2 of your options were : 1-1-1-1-1-1 and 2-2-2-2-2-2 so the Script will put them in the modifier fields, like this :

Modifier 1 : 1-1-1-1-1-1

Modifier 2 : 2-2-2-2-2-2

(which is the correct answer)

the series of numbers are not 1 number, but 1 serie so every number is independent - for example :

0-1-5-9-9-9

+

1-5-5-1-1-1

will equale =

1-6-10-10-10-10

(also I must add - 0 is an independent and important number , and should not be ignored even if it's placed in the begining of the number) .

so the first digit in the serie of "number1" is added with the first digit from the series of numbers from "modifier1 " and then it gets added with the first Number of the series of numbers from "modifier2". then if it gets matched with the first digit of the TargetNumber it begins trying to match the second digit, then third...etc. if one of the resulted digits doesen't match with the TargetNumber's digit (in the same spot) it changes that series of numbers and places a different serie of digits from the given list instead , until it finds the correct 2 options that work (it has to go through all of the possible combos) .

that's basicly what I am trying to do.

thanks.

Psycho · February 6, 2008

There are a few unanswered issues in your explanation:

What if there are no combinations of modifiers to make number1 equal the target number?

What if there are multiple combnations?

shedokan · February 6, 2008

Q:What if there are no combinations of modifiers to make number1 equal the target number?

A:there has to be a combination because we take the combinations from another website.

Q:What if there are multiple combnations?

A:there can only be one combination because those combinations taken from another website website.

Psycho · February 6, 2008

So if a user enters 5-5-5-5-5-5 as Number 1 and 2-2-2-2-2-2 as the Target, how can there be a solution? You cna't add anything to a 5 to make it a 2.

Psycho · February 6, 2008

This appears to work (based upon how I understand the problem). There is a limited amount of verification and I only did a limited amoutn of testing

<html>
<head></head>

<body>

<?php

if (isset($_POST)) {

  $modifier = array();
  $post_modifiers = $_POST['modifier'];
  if (is_array($_POST['modifier'])) {
    foreach ($_POST['modifier'] as $mod) {
      $mod_ary = explode('-',$mod);
      if (count($mod_ary)==6) {
        $modifier[] = $mod_ary;
      }
    }
  }

  $number1 = explode('-',$_POST['number1']);
  $target = explode('-',$_POST['target']);

  //Create an array of the differences. If the result
  //will be neg, do not add - act as a validation check
  $diff = array();
  for ($i=0; $i<6; $i++) {
    if ($target[$i]>=$number1[$i]) {
      $diff[] = $target[$i] - $number1[$i];
    }
  }

  if (count($modifier)<2 || count($diff)!=6) {

    echo "<b>Not all required fields entered or correct!</b>";

  } else {

    $soultionFound = false;

    foreach ($modifier as $modA) {

      foreach ($modifier as $modB) {

        if (($modA[0]+$modB[0])==$diff[0] && ($modA[1]+$modB[1])==$diff[1] &&
            ($modA[0]+$modB[2])==$diff[2] && ($modA[3]+$modB[3])==$diff[3] &&
            ($modA[0]+$modB[4])==$diff[4] && ($modA[5]+$modB[5])==$diff[5] && !$soultionFound) {

          $soultionFound = true;
          $mod1 = implode('-', $modA);
          $mod2 = implode('-', $modB);

        }
      }
    }
    if (!$soultionFound) {
      echo "<b>No solution found!.</b>";
    }
  }
}

?>


<form method="POST">

All values should be entered in the format 'n-n-n-n-n-n' (without the quotes):
<br><br>

  Modifier 1: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[0]; ?>" /><br>
  Modifier 2: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[1]; ?>" /><br>
  Modifier 3: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[2]; ?>" /><br>
  Modifier 4: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[3]; ?>" /><br>
  Modifier 5: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[4]; ?>" /><br>
  Modifier 6: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[5]; ?>" /><br>
  Modifier 7: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[6]; ?>" /><br>
  Modifier 8: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[7]; ?>" /><br>
  Modifier 9: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[8]; ?>" /><br>
  Modifier 10: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[9]; ?>" /><br>
  Modifier 11: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[10]; ?>" /><br>
  Modifier 12: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[11]; ?>" /><br>
  Modifier 13: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[12]; ?>" /><br>
  Modifier 14: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[13]; ?>" /><br>
  Modifier 15: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[14]; ?>" /><br>
  Modifier 16: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[15]; ?>" /><br>
  Modifier 17: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[16]; ?>" /><br>
  Modifier 18: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[17]; ?>" /><br>
  Modifier 19: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[18]; ?>" /><br>
  Modifier 20: <input type="text" name="modifier[]" value="<?php echo $post_modifiers[19]; ?>" /><br>
  <br><br>
  Number 1: <input type="text" name="number1" value="<?php echo $_POST['number1']; ?>" /><br>
  Modifier 1: <input type="text" name="mod1" value="<?php echo $mod1; ?>" readonly /><br>
  Modifier 2: <input type="text" name="mod2" value="<?php echo $mod2; ?>" readonly /><br>
  Target Number: <input type="text" name="target" value="<?php echo  $_POST['target']; ?>" /><br>
  <br>
  <button type="submit">Submit</button>
</form>

</body>
</html>

shedokan · February 7, 2008

doeasn't works, I tried to test it with this:

Array (
[modifier] => Array (
[0] => 4-1-3-4-1-4
[1] => 1-4-1-3-2-4
[2] => 0-3-1-3-4-4
[3] => 3-2-4-1-2-4
[4] => 1-3-3-1-3-0
[5] => 4-4-4-1-3-4
[6] => 1-1-4-2-4-3
[7] => 1-0-1-4-2-3
[8] => 1-3-0-3-1-1
[9] => 2-2-4-3-0-3
[10] => 0-0-3-4-2-0
[11] => 1-1-2-1-3-0
[12] => 1-2-0-2-1-1
[13] => 1-4-4-4-0-0
[14] => 3-1-2-0-2-4
[15] => 2-3-0-2-0-0
[16] => 0-4-4-3-3-4
[17] => 3-3-2-2-0-0
[18] => 3-0-3-3-3-2
[19] => 1-2-3-3-4-3
)
[number1] => 1-1-1-4-0-1
[mod1] =>
[mod2] =>
[target] => 1-4-4-4-3-0
)

Psycho · February 7, 2008

That's because there is no solution in that list absed upon the criteria you gave! That is why I asked before what the process should be in those cases.

It is easy to see that there is no solution. Here are the two input numbers:

1-1-1-4-0-1

1-4-4-4-3-0

Now, since the difference between those two bold numbers is 0, the two modifiers for the solution must have 0 as the fourth number, right? There is only one modifier number in that list of 20 which has a 0 as the 4th digit. So, it would be impossible to add the number1 digits to the digits of two of the modifiers and get the target number digits. Also, how can the last digits go from 1 to 0? That negates the possibility of a solution just with that.

If I am not interpreting how this works, them please explain. I built the code according to how I understood the details you provided.

shedokan · February 8, 2008

Never mind, it's just too much explaining.

Psycho · February 8, 2008

Are you kidding me? Just state what the solutin is for the numbers you used and how you get from number1 to the target number.

aebstract · February 8, 2008

This shouldn't be that hard at all. I'll explain what you should be doing with a few examples and explanations. (why don't you try doing it with just one digit at first, when that is working, go ahead and add the other 5 in to the equation, as it seems each digit can run on its own piece of code). So let's just look at getting one digit to work:

#1: 1

T#: 3

Subtract #1 from your target number. 3-1 = 2. Now you want to divide that by 2, getting 1. M1 and M2 can both equal 1.

#1: 6

T3: 3

Subtract #1 from your target number. 3-6 = -3. Now you want to divide that by 2, getting -1.5. You want whole numbers, so round this number down to the nearest whole number, getting -1. Get your difference between -3 and -1, being -2 and you now have a M1 of -1 and a M2 of -2.

The first solution seemed easier, though you need to go with the second solution if you want to be able to calculate every situation. If I understand correctly, this is what you are trying to do.. correct me if I am wrong, and second example has both negative and decimals to show that what needs to be done to make it all work correctly. Any questions or if you want some code examples just ask.

Psycho · February 8, 2008

Since the numbers are entered in the format 1-2-3-4-5-6 and the '-' is the separator, I don't see how their can be negative numbers.

1-2-3--4-5-6 ???

The OP apparently doesn't wan't to take the time to describe the problen adequately enough to get a solution.

I took a second look at the numbers he posted and thought that maybe the numbers were base 5, but even with that there is not a solution.

aebstract · February 8, 2008

Well, with what he said being that sometimes the number may go backwards, meaning you would have to add a negative number to the starting number to reach your goal. Does it have to be formatted 1-2-3-4-5-6 or could it be (1)-(2)-(3)-(-4)-(5)-(6). I wasn't worried about the formatting of the numbers, just how to achieve the goal. If it has to be formatted a certain way, then yes that needs to be mentioned and made apparent as, if like you stated, it has to be 1-2-3-4-5-6, then you couldn't have a negative unless you had --4.

laffin · February 8, 2008

if u know how many sets of numbers there are use preg_match instead of implode/explode

if(!preg_match("/(-?\d{1,})-(-?\d{1,})-(-?\d{1,})-(-?\d{1,})-(-?\d{1,})-(-?\d{1,})/",$mod,$matches)

or as they say change the seperator so it's not a - sign

shedokan · February 8, 2008

I had to drop this idea, because some problem but thanks for the help anyway.

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HELP - with a custom calculator!!!!

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