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<?php $A = [-9, -2, 1, 5, 9]; $X = 5; function solution(&$A, $X) { $N = sizeof($A); if ($N == 0) { return -1; } $l = 0; $r = $N - 1; while ($l < $r && $X !== $A[$l] ) { $m = (int)(($l + $r) / 2); if ($A[$m] > $X) { $r = $m - 1; } else { $l = $m; } } if ($A[$l] == $X) { return $l; } else return -1; } var_dump(solution($A, $X));
Output for git.master, git.master_jit, rfc.property-hooks
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