php实现直接排序和二分排序

function drank(&$data){$num=count($data);for($i=1;$i<$num;$i++){for($j=$i;$j>0;$j--){if($data[$j]<$data[$j-1]){$data[$j]+=$data[$j-1];$data[$j-1]=$data[$j]-$data[$j-1];$data[$j]=$data[$j]-$data[$j-1];}}}}function brank(&$data){$num=count($data);for($i=1;$i<$num;$i++){$left=0;$right=$i-1;$tmp=$data[$i];while($left<=$right){$mid=floor(($left+$right)/2);if($data[$i]<$data[$mid]){$right=$mid-1;}else{$left=$mid+1;}}for($j=$i-1;$j>=$left;$j--)$data[$j+1]=$data[$j];$data[$left]=$tmp;}}

function drank(&$data){$num=count($data);for($i=1;$i<$num;$i++){for($j=$i;$j>0;$j--){if($data[$j]<$data[$j-1]){$data[$j]+=$data[$j-1];$data[$j-1]=$data[$j]-$data[$j-1];$data[$j]=$data[$j]-$data[$j-1];}}}}function brank(&$data){$num=count($data);for($i=1;$i<$num;$i++){$left=0;$right=$i-1;$tmp=$data[$i];while($left<=$right){$mid=floor(($left+$right)/2);if($data[$i]<$data[$mid]){$right=$mid-1;}else{$left=$mid+1;}}for($j=$i-1;$j>=$left;$j--)$data[$j+1]=$data[$j];$data[$left]=$tmp;}}function qrank($data,$start,$end){$i=$start;$j=$end;if($end>$start){$tmp=$data[$i];do{while($data[$j]>$tmp && $j>$i) $j--;if($j>$i){$data[$i]=$data[$j];$i++;}while($data[$i]<$tmp && $j>$i) $i++;if($j>$i){$data[$j]=$data[$i];$j--;}}while($i!=$j);$data[$i]=$tmp;qrank(&$data,$start,$i-1);qrank(&$data,$i+1,$end);}}function srank(&$data){$num=count($data);for($i=0;$i<$num;$i++){$k=$i;for($j=$i+1;$j<$num;$j++){if($data[$j]<$data[$k]) $k=$j;if($k!=$i){$data[$i]=$data[$i]+$data[$k];$data[$k]=$data[$i]-$data[$k];$data[$i]=$data[$i]-$data[$k];}}}}