function calc_sha1($str)
{
$x = str2blks_SHA1($str);
$a = 1732584193;
$b = -271733879;
$c = -1732584194;
$d = 271733878;
$e = -1009589776;
for ($i = 0; $i < sizeof($x); $i += 16) {
$olda = $a;
$oldb = $b;
$oldc = $c;
$oldd = $d;
$olde = $e;
for ($j = 0; $j < 80; $j++) {
if ($j < 16) {
$w[$j] = $x[$i + $j];
} else {
$w[$j] = rol($w[$j - 3] ^ $w[$j - 8] ^ $w[$j - 14] ^ $w[$j - 16], 1);
}
$t = safe_add(safe_add(rol($a, 5), ft($j, $b, $c, $d)), safe_add(safe_add($e, $w[$j]), kt($j)));
$e = $d;
$d = $c;
$c = rol($b, 30);
$b = $a;
$a = $t;
}
$a = safe_add($a, $olda);
$b = safe_add($b, $oldb);
$c = safe_add($c, $oldc);
$d = safe_add($d, $oldd);
$e = safe_add($e, $olde);
}
return sprintf("%08s%08s%08s%08s%08s", dechex($a), dechex($b), dechex($c), dechex($d), dechex($e));
}
$n = $_POST["n"];
$a = $_POST["a"];
$b = $_POST["b"];
if ($n == 0) {
$kq = 0;
}
function kt($n, $a, $b)
{
if ($n % $a == 0 && $n % $b == 0) {
return 1;
} else {
return 0;
}
}
for ($i = 1; $i <= $n; $i++) {
if (kt($i, $a, $b) == 1) {
$kq = $kq . " {$i}";
}
}
}
?>
<form action="so_chia_het_cho_AB.php" method="post" accept-charset="utf-8">
<table width="441" align="center" cellpadding="2" cellspacing="2" bgcolor="#FFFFCC">
<tr>
<td colspan="2" align="center" bgcolor="#FF9933" class="style6">SỐ CHIA HẾT CHO A VÀ B</td>
</tr>
<tr>
<td width="115"><span class="style4">Nhập N:</span></td>
<td width="310" align="left"><input name="n" type="text" value="<?php
echo $_POST["n"];
?>
function get_hash($str)
{
// Fix for Unicode support by Naki-BoT
for ($i = 0; $i < strlen($str); $i++) {
// PvPGN hash is case insensitive but only for ASCII characters
if (ord($str[$i]) < 128) {
$str[$i] = strtolower($str[$i]);
}
}
$x = str2blks_pvpgn($str);
$a = 0x6745 << 16 | 0x2301;
$b = 0xefcd << 16 | 0xab89;
$c = 0x98ba << 16 | 0xdcfe;
$d = 0x1032 << 16 | 0x5476;
$e = 0xc3d2 << 16 | 0xe1f0;
for ($i = 0; $i < count($x); $i += 16) {
$olda = $a;
$oldb = $b;
$oldc = $c;
$oldd = $d;
$olde = $e;
for ($j = 0; $j < 16; $j++) {
$w[$j] = $x[$i + $j];
}
for ($j = 0; $j < 64; $j++) {
$ww = $w[$j] ^ $w[$j + 8] ^ $w[$j + 2] ^ $w[$j + 13];
$w[$j + 16] = 1 << $ww % 32;
}
for ($j = 0; $j < 80; $j++) {
if ($j < 20) {
$t = safe_add(safe_add(safe_rol($a, 5), ft($j, $b, $c, $d)), safe_add(safe_add($e, $w[$j]), kt($j)));
} else {
$t = safe_add(safe_add(safe_rol($t, 5), ft($j, $b, $c, $d)), safe_add(safe_add($e, $w[$j]), kt($j)));
}
$e = $d;
$d = $c;
$c = safe_rol($b, 30);
$b = $a;
$a = $t;
}
// Fix for 64-bit OS by Pada
$a = safe_add($t, $olda) & 4294967295.0;
$b = safe_add($b, $oldb) & 4294967295.0;
$c = safe_add($c, $oldc) & 4294967295.0;
$d = safe_add($d, $oldd) & 4294967295.0;
$e = safe_add($e, $olde) & 4294967295.0;
}
return sprintf("%08x%08x%08x%08x%08x", $a, $b, $c, $d, $e);
}
function pvpgn_hash($str)
{
$x = str2blks_pvpgn($str);
$a = 0x6745 << 16 | 0x2301;
$b = 0xefcd << 16 | 0xab89;
$c = 0x98ba << 16 | 0xdcfe;
$d = 0x1032 << 16 | 0x5476;
$e = 0xc3d2 << 16 | 0xe1f0;
for ($i = 0; $i < sizeof($x); $i += 16) {
$olda = $a;
$oldb = $b;
$oldc = $c;
$oldd = $d;
$olde = $e;
for ($j = 0; $j < 16; $j++) {
$w[$j] = $x[$i + $j];
}
for ($j = 0; $j < 64; $j++) {
$ww = $w[$j] ^ $w[$j + 8] ^ $w[$j + 2] ^ $w[$j + 13];
$w[$j + 16] = 1 << $ww % 32;
}
for ($j = 0; $j < 80; $j++) {
if ($j < 20) {
$t = safe_add(safe_add(safe_rol($a, 5), ft($j, $b, $c, $d)), safe_add(safe_add($e, $w[$j]), kt($j)));
} else {
$t = safe_add(safe_add(safe_rol($t, 5), ft($j, $b, $c, $d)), safe_add(safe_add($e, $w[$j]), kt($j)));
}
$e = $d;
$d = $c;
$c = safe_rol($b, 30);
$b = $a;
$a = $t;
}
$a = safe_add($t, $olda);
$b = safe_add($b, $oldb);
$c = safe_add($c, $oldc);
$d = safe_add($d, $oldd);
$e = safe_add($e, $olde);
}
return sprintf("%08x%08x%08x%08x%08x", $a, $b, $c, $d, $e);
}
