From 60d89d920053650736e17fa814d020deedcda89e Mon Sep 17 00:00:00 2001 From: NevS <1173325467@qq.com> Date: Fri, 28 May 2021 22:59:27 +0800 Subject: [PATCH 1/4] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200349.=E4=B8=A4?= =?UTF-8?q?=E4=B8=AA=E6=95=B0=E7=BB=84=E7=9A=84=E4=BA=A4=E9=9B=86=20go?= =?UTF-8?q?=E7=89=88?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- problems/0349.两个数组的交集.md | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/problems/0349.两个数组的交集.md b/problems/0349.两个数组的交集.md index fe019a0a..090480a4 100644 --- a/problems/0349.两个数组的交集.md +++ b/problems/0349.两个数组的交集.md @@ -132,6 +132,23 @@ class Solution: Go： +```go +func intersection(nums1 []int, nums2 []int) []int { + m := make(map[int]int) + for _, v := range nums1 { + m[v] = 1 + } + var res []int + // 利用count>0，实现重复值只拿一次放入返回结果中 + for _, v := range nums2 { + if count, ok := m[v]; ok && count > 0 { + res = append(res, v) + m[v]-- + } + } + return res +} +``` javaScript: From 1590897824de40843710804d6a0397eca0131ee1 Mon Sep 17 00:00:00 2001 From: LiangDazhu <42199191+LiangDazhu@users.noreply.github.com> Date: Fri, 28 May 2021 23:33:19 +0800 Subject: [PATCH 2/4] =?UTF-8?q?Update=200096.=E4=B8=8D=E5=90=8C=E7=9A=84?= =?UTF-8?q?=E4=BA=8C=E5=8F=89=E6=90=9C=E7=B4=A2=E6=A0=91.md?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Added python version code --- problems/0096.不同的二叉搜索树.md | 11 ++++++++++- 1 file changed, 10 insertions(+), 1 deletion(-) diff --git a/problems/0096.不同的二叉搜索树.md b/problems/0096.不同的二叉搜索树.md index cee0102f..a9631315 100644 --- a/problems/0096.不同的二叉搜索树.md +++ b/problems/0096.不同的二叉搜索树.md @@ -186,7 +186,16 @@ class Solution { ``` Python： - +```python +class Solution: + def numTrees(self, n: int) -> int: + dp = [0] * (n + 1) + dp[0], dp[1] = 1, 1 + for i in range(2, n + 1): + for j in range(1, i + 1): + dp[i] += dp[j - 1] * dp[i - j] + return dp[-1] +``` Go： ```Go From c4de753d6db1548205de14efdb4fc9194d7223c4 Mon Sep 17 00:00:00 2001 From: phoenix Date: Sat, 29 May 2021 08:07:50 +0800 Subject: [PATCH 3/4] =?UTF-8?q?=E6=B7=BB=E5=8A=A0=200020.=E6=9C=89?= =?UTF-8?q?=E6=95=88=E7=9A=84=E6=8B=AC=E5=8F=B7=20Ruby=20=E7=89=88?= =?UTF-8?q?=E6=9C=AC?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit --- problems/0015.三数之和.md | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/problems/0015.三数之和.md b/problems/0015.三数之和.md index 811fc316..4f4ec63a 100644 --- a/problems/0015.三数之和.md +++ b/problems/0015.三数之和.md @@ -336,6 +336,23 @@ var threeSum = function(nums) { ``` +ruby: +```ruby +def is_valid(strs) + symbol_map = {')' => '(', '}' => '{', ']' => '['} + stack = [] + strs.size.times {|i| + c = strs[i] + if symbol_map.has_key?(c) + top_e = stack.shift + return false if symbol_map[c] != top_e + else + stack.unshift(c) + end + } + stack.empty? +end +``` ----------------------- * 作者微信：[程序员Carl](https://mp.weixin.qq.com/s/b66DFkOp8OOxdZC_xLZxfw) From bd95f6a248f9175216582225500e3c074f0c4180 Mon Sep 17 00:00:00 2001 From: phoenix Date: Sat, 29 May 2021 09:12:26 +0800 Subject: [PATCH 4/4] =?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=20Ruby=20=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 | 14 ++++++++++++++ 1 file changed, 14 insertions(+) diff --git a/problems/0027.移除元素.md b/problems/0027.移除元素.md index 8da0fb89..f0f61d06 100644 --- a/problems/0027.移除元素.md +++ b/problems/0027.移除元素.md @@ -186,6 +186,20 @@ var removeElement = (nums, val) => { }; ``` +Ruby: +```ruby +def remove_element(nums, val) + i = 0 + nums.each_index do |j| + if nums[j] != val + nums[i] = nums[j] + i+=1 + end + end + i +end +``` + ----------------------- * 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)