From 325a09cee71a83261ba037f29eb27bb4f0b2522e Mon Sep 17 00:00:00 2001 From: nolanzzz Date: Wed, 1 Sep 2021 18:44:41 -0400 Subject: [PATCH 1/6] =?UTF-8?q?=E6=B7=BB=E5=8A=A00704=E4=BA=8C=E5=88=86?= =?UTF-8?q?=E6=9F=A5=E6=89=BEPHP=E7=89=88=E6=9C=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- problems/0704.二分查找.md | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+) diff --git a/problems/0704.二分查找.md b/problems/0704.二分查找.md index 495f7367..f358d2be 100644 --- a/problems/0704.二分查找.md +++ b/problems/0704.二分查找.md @@ -478,6 +478,38 @@ int search(int* nums, int numsSize, int target){ } ``` +**PHP:** +```php +// 左闭右闭区间 +class Solution { + /** + * @param Integer[] $nums + * @param Integer $target + * @return Integer + */ + function search($nums, $target) { + if (count($nums) == 0) { + return -1; + } + $left = 0; + $right = count($nums) - 1; + while ($left <= $right) { + $mid = floor(($left + $right) / 2); + if ($nums[$mid] == $target) { + return $mid; + } + if ($nums[$mid] > $target) { + $right = $mid - 1; + } + else { + $left = $mid + 1; + } + } + return -1; + } +} +``` + ----------------------- * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw) * B站视频：[代码随想录](https://space.bilibili.com/525438321) From 3441bced1289c183f9e05b005c1a67a4971014a2 Mon Sep 17 00:00:00 2001 From: nolanzzz Date: Wed, 1 Sep 2021 18:56:34 -0400 Subject: [PATCH 2/6] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200027.=E7=A7=BB?= =?UTF-8?q?=E9=99=A4=E5=85=83=E7=B4=A0=20PHP=E7=89=88=E6=9C=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- problems/0027.移除元素.md | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/problems/0027.移除元素.md b/problems/0027.移除元素.md index e3b75719..7976dce3 100644 --- a/problems/0027.移除元素.md +++ b/problems/0027.移除元素.md @@ -246,6 +246,31 @@ func removeElement(_ nums: inout [Int], _ val: Int) -> Int { } ``` +PHP: +```php +class Solution { + /** + * @param Integer[] $nums + * @param Integer $val + * @return Integer + */ + function removeElement(&$nums, $val) { + if (count($nums) == 0) { + return 0; + } + // 快慢指针 + $slow = 0; + for ($fast = 0; $fast < count($nums); $fast++) { + if ($nums[$fast] != $val) { + $nums[$slow] = $nums[$fast]; + $slow++; + } + } + return $slow; + } +} +``` + ----------------------- * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw) * B站视频：[代码随想录](https://space.bilibili.com/525438321) From 484491f840566ad219ee1505f13e8de355a11429 Mon Sep 17 00:00:00 2001 From: nolanzzz Date: Wed, 1 Sep 2021 19:02:40 -0400 Subject: [PATCH 3/6] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200977.=E6=9C=89?= =?UTF-8?q?=E5=BA=8F=E6=95=B0=E7=BB=84=E7=9A=84=E5=B9=B3=E6=96=B9=20PHP?= =?UTF-8?q?=E7=89=88=E6=9C=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- problems/0977.有序数组的平方.md | 27 ++++++++++++++++++++++++++ 1 file changed, 27 insertions(+) diff --git a/problems/0977.有序数组的平方.md b/problems/0977.有序数组的平方.md index 13142853..250234e1 100644 --- a/problems/0977.有序数组的平方.md +++ b/problems/0977.有序数组的平方.md @@ -270,6 +270,33 @@ def sorted_squares(nums) end ``` +PHP: +```php +class Solution { + /** + * @param Integer[] $nums + * @return Integer[] + */ + function sortedSquares($nums) { + $res = []; + for ($i = 0; $i < count($nums); $i++) { + $res[$i] = 0; + } + $k = count($nums) - 1; + for ($i = 0, $j = count($nums) - 1; $i <= $j; ) { + if ($nums[$i] ** 2 < $nums[$j] ** 2) { + $res[$k--] = $nums[$j] ** 2; + $j--; + } + else { + $res[$k--] = $nums[$i] ** 2; + $i++; + } + } + return $res; + } +} +``` ----------------------- From efda64220ff36302999fb24b3e850262363ef76b Mon Sep 17 00:00:00 2001 From: nolanzzz Date: Wed, 1 Sep 2021 19:03:48 -0400 Subject: [PATCH 4/6] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200977.=E6=9C=89?= =?UTF-8?q?=E5=BA=8F=E6=95=B0=E7=BB=84=E7=9A=84=E5=B9=B3=E6=96=B9=20PHP?= =?UTF-8?q?=E7=89=88=E6=9C=AC=E6=B3=A8=E9=87=8A?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- problems/0977.有序数组的平方.md | 1 + 1 file changed, 1 insertion(+) diff --git a/problems/0977.有序数组的平方.md b/problems/0977.有序数组的平方.md index 250234e1..a10afbfb 100644 --- a/problems/0977.有序数组的平方.md +++ b/problems/0977.有序数组的平方.md @@ -278,6 +278,7 @@ class Solution { * @return Integer[] */ function sortedSquares($nums) { + // 双指针法 $res = []; for ($i = 0; $i < count($nums); $i++) { $res[$i] = 0; From a6a8dc080647bfe243824a7990f346941f5aa128 Mon Sep 17 00:00:00 2001 From: nolanzzz Date: Wed, 1 Sep 2021 19:05:54 -0400 Subject: [PATCH 5/6] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200209.=E9=95=BF?= =?UTF-8?q?=E5=BA=A6=E6=9C=80=E5=B0=8F=E7=9A=84=E5=AD=90=E6=95=B0=E7=BB=84?= =?UTF-8?q?=20PHP=E7=89=88=E6=9C=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- problems/0209.长度最小的子数组.md | 28 +++++++++++++++++++++++ 1 file changed, 28 insertions(+) diff --git a/problems/0209.长度最小的子数组.md b/problems/0209.长度最小的子数组.md index ceca8c87..7c3fd0e7 100644 --- a/problems/0209.长度最小的子数组.md +++ b/problems/0209.长度最小的子数组.md @@ -264,6 +264,34 @@ impl Solution { } ``` +PHP: +```php +// 双指针 - 滑动窗口 +class Solution { + /** + * @param Integer $target + * @param Integer[] $nums + * @return Integer + */ + function minSubArrayLen($target, $nums) { + if (count($nums) < 1) { + return 0; + } + $sum = 0; + $res = PHP_INT_MAX; + $left = 0; + for ($right = 0; $right < count($nums); $right++) { + $sum += $nums[$right]; + while ($sum >= $target) { + $res = min($res, $right - $left + 1); + $sum -= $nums[$left]; + $left++; + } + } + return $res == PHP_INT_MAX ? 0 : $res; + } +} +``` ----------------------- * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw) From e8851b049069734f3f7c8b03ef5c8a2e698dd25b Mon Sep 17 00:00:00 2001 From: nolanzzz Date: Wed, 1 Sep 2021 19:08:21 -0400 Subject: [PATCH 6/6] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200059.=E8=9E=BA?= =?UTF-8?q?=E6=97=8B=E7=9F=A9=E9=98=B5II=20PHP=E7=89=88=E6=9C=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- problems/0059.螺旋矩阵II.md | 42 +++++++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/problems/0059.螺旋矩阵II.md b/problems/0059.螺旋矩阵II.md index 4231fb39..3dbc2a50 100644 --- a/problems/0059.螺旋矩阵II.md +++ b/problems/0059.螺旋矩阵II.md @@ -426,6 +426,48 @@ impl Solution { } ``` +PHP: +```php +class Solution { + /** + * @param Integer $n + * @return Integer[][] + */ + function generateMatrix($n) { + // 初始化数组 + $res = array_fill(0, $n, array_fill(0, $n, 0)); + $mid = $loop = floor($n / 2); + $startX = $startY = 0; + $offset = 1; + $count = 1; + while ($loop > 0) { + $i = $startX; + $j = $startY; + for (; $j < $startY + $n - $offset; $j++) { + $res[$i][$j] = $count++; + } + for (; $i < $startX + $n - $offset; $i++) { + $res[$i][$j] = $count++; + } + for (; $j > $startY; $j--) { + $res[$i][$j] = $count++; + } + for (; $i > $startX; $i--) { + $res[$i][$j] = $count++; + } + $startX += 1; + $startY += 1; + $offset += 2; + $loop--; + } + if ($n % 2 == 1) { + $res[$mid][$mid] = $count; + } + return $res; + } +} +``` + ----------------------- * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw)