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feat: add biweekly contest 174#4974

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yanglbme merged 2 commits intomainfrom
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Jan 18, 2026
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feat: add biweekly contest 174#4974
yanglbme merged 2 commits intomainfrom
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Copilot AI review requested due to automatic review settings January 18, 2026 02:07
@idoocs idoocs added core team Issues or pull requests from core team cpp Issues or Pull requests relate to .cpp code go Issues or Pull requests relate to .go code java Issues or Pull requests relate to .java code md Issues or Pull requests relate to .md files png Issues or Pull requests relate to .png files py Issues or Pull requests relate to .py code ts Issues or Pull requests relate to .ts code labels Jan 18, 2026
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Images automagically compressed by Calibre's image-actions

Compression reduced images by 88.1%, saving 8.7 KB.

Filename Before After Improvement Visual comparison
solution/3800-3899/3812.Minimum Edge Toggles on a Tree/images/example1.png 9.9 KB 1.2 KB 88.1% View diff

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Pull request overview

This PR adds documentation for LeetCode Biweekly Contest 174, which took place on January 17, 2026. The PR includes four new problem entries (3809-3812) across multiple documentation files in both English and Chinese.

Changes:

  • Added four new problem entries (3809-3812) to the solution index files
  • Added a new contest section for Biweekly Contest 174 to the contest documentation files
  • Fixed minor formatting (removed extra spaces) in the main README.md

Reviewed changes

Copilot reviewed 32 out of 38 changed files in this pull request and generated no comments.

Show a summary per file
File Description
solution/README_EN.md Added 4 problem entries for Biweekly Contest 174 to the English solution index
solution/README.md Added 4 problem entries for Biweekly Contest 174 to the Chinese solution index
solution/CONTEST_README_EN.md Added new section for Biweekly Contest 174 with problem links in English
solution/CONTEST_README.md Added new section for Biweekly Contest 174 with problem links, date, and participant count in Chinese
README.md Minor formatting fix: removed extra spaces before a comment

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