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11-09

CCPC2022 Guilin J Permutation Puzzle

11-09

CCPC2022 Guilin G Group Homework

10-21

ICPC2023 HongKong Sum of Numbers

09-12

[题解] 2023杭电多校 King's Ruins [偏序][bitset][dp]

09-07

[题解] CF1864E Exotic Queries [区间问题][二维偏序]

09-06

[题解] CF1864E Guess Game [期望][Trie]

08-25

[题解] 2023杭电多校 Do You Like Interactive Problems? [概率期望]

08-25

[题解] 2023杭电多校 Many Topological Problems [树][计数]

08-25

[题解] 2023 CCPC 华为云计算挑战赛 博弈，启动！ [BFS]

08-14

[题解] 2023杭电多校 Rikka with Square Numbers [数论]