khang

Saturday, July 30, 2016

khang

Submitted by Unknown on 12:50:00 PM

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ứng dụng

<?php
function kt_ngto($n)
{
 $kt = 1;
 for($i=2;$i<=sqrt($n);$i++)
 {
  if($n%$i==0 && $n>2)
  {
   $kt = 0;
  }  
 }
 return $kt;
}
function lk_ngto($n)
{
  
 $i=2;
 $dem =1;
 (string) $ketqua = "";
 while($dem<=$n)
 {
  if(kt_ngto($i)==1)
  {
   $ketqua .= $i." &nbsp;";
   $dem++; 
  } 
  $i++;
 }
 return $ketqua;
}
 
 if(isset($_POST["ok"]))
 {
  $ketqua ="";
  $n = $_POST["n"];
  $ketqua = lk_ngto($n);
 }

?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>N snt đầu tiên</title>
</head>

<body>
 <br />
    <br />
    <br />
    <br />
    <form action="n-so-ng-to-dautien.php" method="post">
  
     <table style="font-size:20px;" width="630" height="337" border="0" align="center" cellpadding="2" cellspacing="2">
       <tr>
         <td height="70" colspan="2" bgcolor="#8CC6FF"><div align="center"><strong><em>Liệt Kê N Số Nguyên Tố Đầu Tiên</em></strong></div></td>
          </tr>
       <tr>
         <td width="162" height="68" bgcolor="#8CC6FF"><div align="center">Nhập n:</div></td>
         <td width="268" bgcolor="#8CC6FF"><div align="center">
             <input type="text" name="n" value="<?php if(isset($_POST["n"])){echo $_POST["n"];} ?>" />
         </div></td>
       </tr>
        <tr bgcolor="#33CC00">
         <td height="119" colspan="2" bgcolor="#8CC6FF"><div align="center">
           <input style="background-color:#0F0; width:100px; height:30px;" type="submit" value="Liệt Kê" name="ok" />
              <br />
              <br />
              <strong style="color:#000"> Kết quả: <?php if(isset($_POST["n"])){echo $ketqua;} ?> </strong>
         </div></td>
          </tr>
     </table>
</form>
<h4 style="float:right;margin-right:450px;"><a href="https://www.facebook.com/lightning.quan" target="_blank">Trung Quân</a></h4>
</body>
</html>

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Saturday, July 30, 2016

khang

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