<?php
function romanToDecimal($num)
{
$dec = 0;
$i = 0;
$romans = ['M', 'D', 'C', 'L', 'X', 'V', 'I'];
$decs = [1000, 500, 100, 50, 10, 5, 1];
$rptr = 0;
$num .= ' ';
while ($i < strlen($num) - 1) {
if ($num[$i] === $romans[$rptr]) {
if (($rptr > 0) && ($num[$i + 1] === $romans[$rptr - 1])) {
$dec -= $decs[$rptr];
$rptr -= 1;
} else if (($rptr > 1) && ($num[$i + 1] === $romans[$rptr - 2])) {
$dec -= $decs[$rptr];
$rptr -= 2;
} else {
$dec += $decs[$rptr];
}
$i++;
} else {
$rptr++;
if($rptr > count($decs))
return -1;
}
}
return $dec;
}
function decimal2roman($num)
{
$romans = ['M', 'CM', 'D', 'CD', 'C', 'XC', 'L', 'XL', 'X', 'IX', 'V', 'IV', 'I'];
$decs = [1000, 900, 500, 400, 100, 90, 50, 40, 10, 9, 5, 4, 1];
$len = count($decs);
$rom = '';
while ($num) {
$i = 0;
while ($decs[$i++] > $num && $i < $len);
$rom .= $romans[$i];
$num -= $decs[i];
}
return $rom;
}
echo romanToDecimal('MCXII') . "\n";
echo romanToDecimal('LIII') . "\n";
echo romanToDecimal('XCIX') . "\n";
echo romanToDecimal('XLVII') . "\n";
echo romanToDecimal('I') . "\n";
echo romanToDecimal('IV') . "\n";
echo romanToDecimal('DCCCXCIX') . "\n";
echo romanToDecimal('MMMCMXCIX') . "\n";
//echo decimal2roman(128) . "\n";
?>
- Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.38, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
- 1112
53
99
47
1
4
899
3999
- Output for 4.4.2 - 4.4.9, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
- Parse error: syntax error, unexpected '[' in /in/C43ML on line 7
Process exited with code 255. - Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1, 5.0.0 - 5.0.5
- Parse error: parse error, unexpected '[' in /in/C43ML on line 7
Process exited with code 255. - Output for 4.3.2 - 4.3.4
- Parse error: parse error in /in/C43ML on line 7
Process exited with code 255.
preferences:
335.97 ms | 401 KiB | 452 Q