Octal to Binary Convert (#8949)

* Octal to Binary Convert

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* mention return type

* code scratch

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* mentioned return type

* remove comment

* added documention and some test cases

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* add another test case

* fixes documention

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Documention and test cases added

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* documention problem solved

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* error in exit 1

* [pre-commit.ci] auto fixes from pre-commit.com hooks

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* Apply suggestions from code review

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Co-authored-by: BamaCharanChhandogi <b.c.chhandogi@gmailcom>
Co-authored-by: pre-commit-ci[bot] <66853113+pre-commit-ci[bot]@users.noreply.github.com>
Co-authored-by: Tianyi Zheng <tianyizheng02@gmail.com>