<?php // Here your code ! $L = trim(fgets(STDIN)); $N = trim(fgets(STDIN)); $boxes = explode(' ',trim(fgets(STDIN))); sort($boxes); $len = 0; for($i = 0; $i < $N;) { if($L >= ($len + $boxes[$i])) { $len += $boxes[$i]; $i++; } else { break; } } echo $i.PHP_EOL;