> For the complete documentation index, see [llms.txt](https://snowan.gitbook.io/study-notes/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge.md).

# May2020Challenge

- [check-if-straight-line](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/check-if-straight-line.md)
- [cousins-in-binary-tree](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/cousins-in-binary-tree.md)
- [find-town-judge](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/find-town-judge.md)
- [first-bad-version](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/first-bad-version.md)
- [first-unique-character-in-a-string](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/first-unique-character-in-a-string.md)
- [flood-fill](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/flood-fill.md)
- [implement-trie](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/implement-trie.md)
- [jewels-and-stones](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/jewels-and-stones.md)
- [majority-element](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/majority-element.md)
- [maximum-sum-circular-subarray](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/maximum-sum-circular-subarray.md)
- [number-complement](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/number-complement.md)
- [odd-even-linkedlist](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/odd-even-linkedlist.md)
- [ransom-note](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/ransom-note.md)
- [remove-k-digits](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/remove-k-digits.md)
- [single-element-in-sorted-array](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/single-element-in-sorted-array.md)
- [valid-perfect-square](https://snowan.gitbook.io/study-notes/leetcode/may2020challenge/valid-perfect-square.md)