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PHP print narcissus number function code

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Release: 2016-07-25 08:53:36
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  1. php daffodil number function--bbs.it-home.org
  2. < ;body>
  3. function winter($num)
  4. {
  5. if($num<1000){
  6. //Define the ones digit
  7. $ge=$num%10;
  8. //Define the tens digit
  9. $ten =(($num%100)-$ge) /10;
  10. //Define the hundreds place
  11. /*floor rounding, ignore all numbers after the decimal point*/
  12. $hundred=floor($num/100);
  13. $ sum1=$ge*$ge*$ge+$ten*$ten*$ten+$hundred*$hundred*$hundred;
  14. if($sum1==$num){
  15. return 1;
  16. } else{
  17. return 0;
  18. }

  19. } else{

  20. return -1;
  21. }
  22. }

  23. if(winter(371)==-1) {

  24. echo "greater than The number of 1000";
  25. }else{
  26. if(winter(371)) {
  27. echo "Yes";
  28. } else{
  29. echo "No";
  30. }
  31. }
  32. ?>
  33. < ;/html>

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Example 2, PHP implements narcissus number

  1. for($i=0;$i<1000;$i++)
  2. {
  3. $a=floor($i/100);//Find the hundreds digit
  4. $b =floor($i/10)%10;//Find the tens digit
  5. $c=$i%10;//Find the ones digit
  6. //if($a*$a*$a+$b* $b*$b+$c*$c*$c==$i)
  7. if(pow($a,3)+pow($b,3)+pow($c,3)==$i)/ /Determine whether the sum of the cubes of hundreds, tens and units is equal to the number itself
  8. {
  9. echo $i."
    ";
  10. }
  11. }
  12. ?>
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source:php.cn
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