<?php
function intdiv_2($a, $b){
return floor($a / $b);
}
function isBouncy($num) {
if ($num < 100) {
return false;
}
$ni = true;
$nd = true;
$lastDigit = $num % 10;
$num = intdiv_2($num, 10);
while($num != 0) {
$digit = $num % 10;
if ($digit > $lastDigit) {
$nd = false;
}
else if ($digit < $lastDigit) {
$ni = false;
}
$lastDigit = $digit;
$num = intdiv_2($num, 10);
}
return !$ni && !$nd;
}
echo isBouncy(0);
echo isBouncy(10);
echo isBouncy(345);
echo isBouncy(321);
echo isBouncy(384);
- Output for 5.4.9 - 5.4.45, 5.5.24 - 5.5.35, 5.6.8 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.17 - 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
- 1
preferences:
188.71 ms | 404 KiB | 245 Q