Skip to content
Permalink

Comparing changes

Choose two branches to see what’s changed or to start a new pull request. If you need to, you can also or learn more about diff comparisons.

Open a pull request

Create a new pull request by comparing changes across two branches. If you need to, you can also . Learn more about diff comparisons here.
base repository: azl397985856/leetcode
Failed to load repositories. Confirm that selected base ref is valid, then try again.
Loading
base: master
Choose a base ref
...
head repository: lamda2019/leetcode-1
Failed to load repositories. Confirm that selected head ref is valid, then try again.
Loading
compare: master
Choose a head ref

There isn’t anything to compare.

azl397985856:master and lamda2019:master are entirely different commit histories.

Showing with 5 additions and 3 deletions.
  1. +2 −2 README.md
  2. BIN assets/wechat-group-chat.jpeg
  3. +3 −1 problems/20.validParentheses.md
4 changes: 2 additions & 2 deletions README.md
Original file line number Diff line number Diff line change
@@ -189,6 +189,6 @@ anki - 文件 - 导入 - 下拉格式选择“打包的 anki集合”，然后

(qq 群)

![wechat-group-chat](./assets/wechat-group-chat.jpg)
![wechat-group-chat](./assets/wechat-group-chat.jpeg)

(微信群， 由于微信的限制，只可以七天之内才能加入)
(由于微信的限制，100个人以上只能邀请加入， 你可以添加我的机器人回复“leetcode”拉你进群)
Binary file added assets/wechat-group-chat.jpeg
Loading
Sorry, something went wrong. Reload?
Sorry, we cannot display this file.
Sorry, this file is invalid so it cannot be displayed.
4 changes: 3 additions & 1 deletion problems/20.validParentheses.md
Original file line number Diff line number Diff line change
@@ -2,6 +2,8 @@
https://leetcode.com/problems/valid-parentheses/description

## 题目描述

```
Given a string containing just the characters '(', ')', '{', '}', '[' and ']', determine if the input string is valid.
An input string is valid if:
@@ -30,7 +32,7 @@ Example 5:
Input: "{[]}"
Output: true

```

## 思路