> For the complete documentation index, see [llms.txt](https://maksimdan.gitbook.io/interview-practice-problems/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://maksimdan.gitbook.io/interview-practice-problems/coding_practice_questions/interview_questions1.md).

# Arrays and Strings

- [Is Unique](https://maksimdan.gitbook.io/interview-practice-problems/coding_practice_questions/interview_questions1/is-unique.md)
- [Check Permutation](https://maksimdan.gitbook.io/interview-practice-problems/coding_practice_questions/interview_questions1/check-permutation.md)
- [URLify](https://maksimdan.gitbook.io/interview-practice-problems/coding_practice_questions/interview_questions1/urlify.md)
- [Palindrome Permutation](https://maksimdan.gitbook.io/interview-practice-problems/coding_practice_questions/interview_questions1/palindrome-permutation.md)
- [One Away](https://maksimdan.gitbook.io/interview-practice-problems/coding_practice_questions/interview_questions1/one-away.md)
- [String Compression](https://maksimdan.gitbook.io/interview-practice-problems/coding_practice_questions/interview_questions1/string-compression.md)
- [Rotate Matrix](https://maksimdan.gitbook.io/interview-practice-problems/coding_practice_questions/interview_questions1/rotate-matrix.md)
- [Zero Matrix](https://maksimdan.gitbook.io/interview-practice-problems/coding_practice_questions/interview_questions1/zero-matrix.md)
- [String Rotation](https://maksimdan.gitbook.io/interview-practice-problems/coding_practice_questions/interview_questions1/string-rotation.md)