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=====数据结构===== [[lotk_树套树|树套树]] [[带花树|带花树]] [[ac自动机|ac自动机]] [[后缀数组|后缀数组]] =====个人练习===== [[codeforces641div2|Codeforces Round #641 (Div. 2)]] ''prob:5/6'' ''rank:170'' 2020.8.9 [[agc047|Atcoder Beginner Contest 047]] ''prob:2/6'' ''rank：415'' [[atcoderbc176|AtCoder Beginner Contest 176]] ''prob:5/6'' ''rank：889''