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  1. <?php
  2.  
  3. try{
  4.  
  5.     $result = "";
  6.  
  7.     fscanf(STDIN, "%d %d", $a, $b);
  8.  
  9.     $now = true; // 현재 차례 패티의 차례 (false일 시 치즈의 차례)
  10.  
  11.     $count = 0;
  12.  
  13.     while(true){
  14.         if($now){
  15.             if(!$a) break;
  16.             $a--; $count++;
  17.         }else{
  18.             if(!$b) break;
  19.             $b--; $count++;
  20.         }
  21.         $now = !$now;
  22.     }
  23.  
  24.     if($count % 2){
  25.         $count--;
  26.     }
  27.  
  28.     $result = $count;
  29.  
  30.     echo $result;
  31.  
  32. }catch(Exception $e){
  33.     echo $e->getMessage();
  34. }
  35.  
  36.  
  37.  
Success #stdin #stdout 0.02s 25652KB
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stdout
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8
https://ideone.com/p3oO9z
language:
PHP (php 7.3.5)
created:
2 years ago
visibility:
public

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