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  1. <?php
  2.  
  3. 	class Less
  4. 	{
  5. 		private $val = 0;
  6.  
  7. 		public function __construct ($value)
  8. 		{
  9. 			$this->val = $value;
  10. 		}
  11.  
  12. 		public function __invoke ($value)
  13. 		{
  14. 			return $this->val < $value;
  15. 		}
  16. 	}
  17.  
  18. 	function random_array($size, $min, $max) 
  19. 	{
  20. 		$array = [];
  21. 		for ($i = 0; $i < $size; $i++)
  22. 			$array[] = rand($min, $max);
  23. 		return $array;
  24. 	}
  25.  
  26. 	function sum_if(array $array, Callable $predicate)
  27. 	{
  28. 		$sum = 0;
  29. 		for ($i = 0; $i < count($array); $i++)
  30. 			if ($predicate($array[$i]))
  31. 				$sum += $array[$i];
  32. 		return $sum;
  33. 	}
  34.  
  35. 	$n = (int)trim(fgets(STDIN));
  36. 	$a = (int)trim(fgets(STDIN));
  37.  
  38. 	$array = random_array($n, 0, 20);
  39. 	$sum = sum_if($array, new Less($a));
  40.  
  41. 	echo "Array: " . implode(", ", $array) . "\n" . "Sum: " . $sum;
  42. ?>
Success #stdin #stdout 0.01s 20520KB
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Array: 17, 4, 4, 14, 0, 11, 20, 12, 20, 4
Sum: 94
https://ideone.com/zXm1k3
language:
PHP (php 7.3.5)
created:
12 years ago
visibility:
public

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