2019 - 题库

ID	题目显示标签隐藏标签	AC / 尝试	难度
50	50 [KBC004B] Palindrome Collaborators KingCoder Time 1970 2019 2023 2024	3 / 5	3
68	68 [CSP-S 2019 Day 1] Gray Code Official CSP-S Time 2019	4 / 5	3
69	69 [CSP-S 2019 Day 1] Bracket Tree Official CSP-S Time 2019	3 / 5	6
70	70 [CSP-S 2019 Day 1] Cut and Swap Official CSP-S Time 2019	3 / 4	10
71	71 [CSP-S 2019 Day 2] Guest Treating Official CSP-S Time 2019	3 / 3	8
72	72 [CSP-S 2019 Day 2] Brute Force Optimization Official CSP-S Time 2019	3 / 56	9
73	73 [CSP-S 2019 Day 2] Subtree Centroids Official CSP-S Time 2019	3 / 4	10
118	118 [KSC001D] A problem about charges Collaborators KingCoder Time 1970 2019 2023 2024	3 / 5	6

根据当前过滤条件随机选择一道题

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