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  1. <?php
  2.  
  3.  
  4. error_reporting(-1);
  5. mb_internal_encoding('utf-8');
  6. $amount = 6600;
  7. $bills = array(
  8. 	100   => 23,
  9. 	200   => 3,
  10. 	500   => 1,
  11. 	1000  => 0,
  12. 	2000  => 4,
  13. 	5000  => 1
  14. 	);
  15. 	$bills = array_reverse($bills, true);
  16. 	//var_dump($bills);
  17. 	echo "Выдача возможна, число купюр:\n";
  18. 	foreach ($bills as $nominal => $number) {
  19. 		$quantity = floor($amount / $nominal);
  20. 		if ($number >= $quantity) {
  21. 			$amount = $amount - ($quantity * $nominal);
  22. 			$delivery = $quantity;
  23. 		}
  24. 		else {
  25. 			$amount = $amount - ($number * $nominal);
  26. 			$delivery = $number;
  27. 		}
  28. 		$x = 'x';
  29. 		echo "$delivery$x$nominal ";
  30. 	}
  31.  
  32.  
Success #stdin #stdout 0.01s 20568KB
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Выдача возможна, число купюр:
1x5000 0x2000 0x1000 1x500 3x200 5x100
https://ideone.com/G6erkH
language:
PHP (php 7.3.5)
created:
11 years ago
visibility:
public

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