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<?php
declare(strict_types=1);
namespace leetcode;
class FindPeakElement
{
public static function findPeakElement(array $nums): int
if (empty($nums)) {
return 0;
}
$max = $nums[0];
foreach ($nums as $i => $num) {
$max = max($max, $num);
return array_flip($nums)[$max];
public static function findPeakElement2(array $nums): int
[$left, $right] = [0, count($nums) - 1];
while ($left < $right) {
$mid = $left + (int)(($right - $left) / 2);
if ($nums[$mid] < $nums[$mid + 1]) {
$left = $mid + 1;
} else {
$right = $mid;
return $left;
imajinyun /
leetcode-php
