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【MX-S14-T3】「KWOI R2」XOR and Sum of Subsets
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ID
16338
Time
2000ms
Memory
512MiB
Difficulty
(None)
Tags
O2优化
线性代数
线性基
快速沃尔什变换 FWT
根号分治
集合幂级数,子集卷积
梦熊比赛
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Hydro
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