另一种做法+申请增加题解

P1972 [SDOI2009] HH的项链

@[Register_int](/user/406941) @[_•́へ•́╬_](/user/90693)
by Libingyue2011 @ 2024-01-31 17:14:24

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@[shinzanmono](/user/610557) @[Graygoo](/user/535714)
by Libingyue2011 @ 2024-02-01 15:41:33

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@[shinzanmono](/user/610557) @[Daniel_lele](/user/116664) @[lvkaiyi0811](/user/615290)
by Libingyue2011 @ 2024-03-09 21:14:56

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@[swiftc](/user/183154) @[bykem](/user/376161) @[Daniel_lele](/user/116664)
by Libingyue2011 @ 2024-04-18 13:18:24

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