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WorldQuant Round 1 (Codeforces Round 1128, Div. 1 + Div. 2)
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Comments
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0
i got it!thanks. |
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0
How about n=3? |
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0
in the editorial of B,when the multiset at d is empty,just let end[d]=0 and update ans[d](it bother me for a while) |
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