HashMap Data Structure : Fixing grammatical error in text

[xerxes324]

Minor grammatical error in the text

Because

The original had a comma splice, where two independent clauses were incorrectly joined with a comma. The revised version uses a semicolon, which is the grammatically correct choice in this case.

This PR

• Replaced a comma with a semicolon to fix a comma splice and ensure grammatical correctness.

Issue

Closes #XXXXX

Additional Information

https://www.grammarly.com/blog/punctuation-capitalization/comma-splice/

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