aebstract

//$n=$_POST['t']; because you have // in front of it?

It's not homework. It's just for a game online, for fun. It does give you a list of numbers in a row, and $n is the number of numbers that are in that row. I've solved the game through the code I have, but now I'm trying to shorten it as much as possible and use better methods to accomplish the task. It's just a fun learning thing, and can be done in any way you choose. The code I provided was the way I solved it, but I know there are other possibilities and better options which is why I'm looking for help on some of it. I don't really know why I would need $n, unless like you said to go through that many iterations instead of pulling in all numbers. I know it mentions in the instructions something about it pulling in all numbers and that you can change it. I have tried to look in to the STDIN and those functions being used (they were provided to begin the game basically) but haven't found anything that really makes me understand how it's working. I tried the fscan code and it makes my code fail every test case, even though I'm not calling $n anywhere in my code. So I'm kinda lost as to what fscan is really doing I guess. Here is the entire game: Rules Write a program that prints the temperature closest to 0 among input data. If two numbers are equally close to zero, positive integer has to be considered closest to zero (for instance, if the temperatures are -5 and 5, then display 5). Game Input Your program must read the data from the standard input and write the result on the standard output. Input Line 1: N, the number of temperatures to analyze Line 2: The N temperatures expressed as integers ranging from -273 to 5526 Output Display 0 (zero) if no temperatures are provided. Otherwise, display the temperature closest to 0.

<?php fscanf(STDIN,"%d",$n); $t = explode(" ", stream_get_line(STDIN, 256 + 1, "\n")); ?> This is how I get my original array, I don't have access to the source numbers beyond this. I'll play around with what you posted and see if I can figure something out.

Because I don't know how to do a check to determine the correct option like that.

An output of the array would look identical to what I showed as an example. Basically trying to find the closest value to 0 and if the closest value is the same positive and negative like -2 and 2, I need to output the positive.

I have an array of numbers, something like: 1 > 5 2 > 10 3 > -2 4 > -6 5 > 3 I need to sort this array so that it is in numerical order IGNORING the negative signs. A correct ouput would be this order: -2 3 5 -6 10 Right now I am having to basically duplicate my array and then use str_replace to remove the - and then sort the list keeping my keys in tact with the values, that way I can go back and compare to my original array. I could use one array and do away with all of the extra if I knew a way to do this sort. Thanks in advance!