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feat: add solutions to lc problem: No.2916 - #6194
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Maintain the sum of squared distinct counts with a lazy segment tree while scanning right endpoints.
idoocs
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yanglbme
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October 16, 2026 12:57
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Summary
Add solutions for 2916. Subarrays Distinct Element Sum of Squares II. Scan right endpoints and maintain squared distinct counts with a lazy segment tree and a hash map of the previous occurrence.
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Checklist
For new or updated solutions:
README.md/README_EN.mdfollowsolution/template.mdSolution.*files and code tabs are unchangedAGENTS.md