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PHP Hacker rank Question solution Mini-Max sum in PHP

Given five positive integers, find the minimum and maximum values that can be calculated by summing exactly four of the five integers. Then print the respective minimum and maximum values as a single line of two space-separated long integers.
For example, . Our minimum sum is  and our maximum sum is . We would print
26 24
Function Description
Complete the miniMaxSum function in the editor below. It should print two space-separated integers on one line: the minimum sum and the maximum sum of  of  elements.
miniMaxSum has the following parameter(s):
  • arr: an array of  integers
Input Format
A single line of five space-separated integers.
Constraints
Output Format
Print two space-separated long integers denoting the respective minimum and maximum values that can be calculated by summing exactly four of the five integers. (The output can be greater than a 32 bit integer.)
Sample Input
1 2 3 4 5
Sample Output
10 14
Explanation
Our initial numbers are , and . We can calculate the following sums using four of the five integers:
  1. If we sum everything except , our sum is .
  2. If we sum everything except , our sum is .
  3. If we sum everything except , our sum is .
  4. If we sum everything except , our sum is .
  5. If we sum everything except , our sum is .
Hints: Beware of integer overflow! Use 64-bit Integer.
Solution of the question :-------------------------------
<?php

/* Write your PHP code here */
sort($arr);
$n = count($arr);
$min = 0;
$max = 0;
    for($i=0;$i<4;$i++){
        $min = $min+$arr[$i];
    }
    for($j=4;$j>0;$j--){
        $max = $max+$arr[$j];
}
    echo $min .' '. $max;
?>
--------------------------------------------------------------------

Thank You 

Comments

  1. This comment has been removed by the author.

    ReplyDelete
    Replies
    1. 8/15 test cases failed :(
      like one test case is : 256741038 623958417 467905213 714532089 938071625
      this error occur when write this code:

      function miniMaxSum($arr) {
      $Sum=0;$Min=0;$Max=0;$a=0;$index=0;
      sort($arr);

      while($index!=count($arr)){
      for($i=0;$i<count($arr);$i++){
      if($i==$index){
      continue;
      }
      else{
      $Sum+=$arr[$i];
      }
      }
      ($a<$Sum)?$Max=$Sum:$Min=$Sum;
      $a=$Sum;
      $Sum=0;
      $index++;
      }
      echo $Min." ".$Max;

      }


      ***but when i include sort($arr);
      there is no problem!
      can you explain ,why it's happened?

      Delete
  2. 8/15 test cases failed :(
    like one test case is : 256741038 623958417 467905213 714532089 938071625
    this error occur when write this code:

    function miniMaxSum($arr) {
    $Sum=0;$Min=0;$Max=0;$a=0;$index=0;

    while($index!=count($arr)){
    for($i=0;$i<count($arr);$i++){
    if($i==$index){
    continue;
    }
    else{
    $Sum+=$arr[$i];
    }
    }
    ($a<$Sum)?$Max=$Sum:$Min=$Sum;
    $a=$Sum;
    $Sum=0;
    $index++;
    }
    echo $Min." ".$Max;

    }


    ***but when I include sort($arr);
    there is no problem!
    can you explain ,why it's happened?

    ReplyDelete

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