Cleaned up some control flow and optimized some parts.

[Larmbs]

This is my second time doing this, forgot to format final result.

I just made some changes to control flow to optimize some parts. The code does the exact same thing but is just shorter and more readable.

[coveralls]

Pull Request Test Coverage Report for Build 9767504553

Details

• 31 of 32 (96.88%) changed or added relevant lines in 10 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.02%) to 95.803%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
rustworkx-core/src/min_scored.rs	0	1	0.0%
<!--	Total:	31	32	96.88%	-->

Totals
Change from base Build 9763575829:	0.02%
Covered Lines:	18035
Relevant Lines:	18825

---

💛 - Coveralls

[Larmbs]

Yeah, I believe the control flow should be identical but it's best not to risk it.

[IvanIsCoding]

Code coverage is 100% and I checked the matches, I think it is good to go

[coveralls]

Pull Request Test Coverage Report for Build 9787794796

Details

• 31 of 32 (96.88%) changed or added relevant lines in 10 files are covered.
• No unchanged relevant lines lost coverage.
• Overall coverage increased (+0.02%) to 95.803%

---

Changes Missing Coverage	Covered Lines	Changed/Added Lines	%
rustworkx-core/src/min_scored.rs	0	1	0.0%
<!--	Total:	31	32	96.88%	-->

Totals
Change from base Build 9763575829:	0.02%
Covered Lines:	18035
Relevant Lines:	18825

---

💛 - Coveralls