feat: add java and c++#43

Merged

weebao merged 24 commits intomainfrom

Feb 18, 2025

Commits on Jan 30, 2025

Added java+cpp and scraped neetcode vids
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Commits on Feb 5, 2025

java + cpp test generators
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Commits on Feb 8, 2025

Add java image and compiler
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Commits on Feb 10, 2025

Finished setting up cpp container
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Commits on Feb 11, 2025

Updated problems tests + Added tests for validating problem tests
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Commits on Feb 12, 2025

Tests 100 problems for java
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Commits on Feb 13, 2025

Commits on Feb 14, 2025

Commits on Feb 18, 2025