Beautiful Days at the Movies
https://www.hackerrank.com/challenges/beautiful-days-at-the-movies/problem
<?php
// Complete the beautifulDays function below.
function beautifulDays($i, $j, $k) {
$result = 0;
for($i; $i<=$j;$i++){
$num1 = (string)$i;
$num2 = strrev($num1);
$chk = (abs((int)$num1 - (int)$num2)) % $k;
if(!$chk){
$result++;
}
}
return $result;
}
$fptr = fopen(getenv("OUTPUT_PATH"), "w");
$stdin = fopen("php://stdin", "r");
fscanf($stdin, "%[^\n]", $ijk_temp);
$ijk = explode(' ', $ijk_temp);
$i = intval($ijk[0]);
$j = intval($ijk[1]);
$k = intval($ijk[2]);
$result = beautifulDays($i, $j, $k);
fwrite($fptr, $result . "\n");
fclose($stdin);
fclose($fptr);
솔직히 문제가 넘 쉬워서 그런가. 영어도 쉬웠다. 번역기 한번 돌렸긴 하지만…