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PHP求小于1000的所有水仙花数的代码_php技巧

WBOY
WBOYOriginal
2016-05-17 09:13:342226browse

水仙花数是一个n(>=3)位数字的数, 它等于每个数字的n次幂之和. 例如, 153是一个水仙花数, 153=1³+5³+3³. 编写程序, 求解小于1000的所有水仙花数.

复制代码 代码如下:

    for($i=100;$i  $a=intval($i/100);
  $b=intval($i/10)%10;
  $c=$i%10;
  if(pow($a,3)+pow($b,3)+pow($c,3)==$i){
  echo $i."\t";
  }
  }
  ?>
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