此处收录了 CCF 官方比赛历年真题(含笔试题等)。

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目前已收录:

  • CSP-S(2019 - 2024)
  • NOIP(2020 - 2024)
  • 杂项(部分)

由于评测机性能差异,部分题目的时间限制有所放大。

你可以在各题目中点击右侧的「文件」以下载附件。

所有数据均为 CCF 官方数据。

章节 1. Others

开放

题目 尝试 AC 难度
P5   [Sleeping Cup #2] Are you ready for it? 22 6 5
P90   Objective Problem Test: CSP-S1 2023 (Adaptation) 45 11 5
P95   Answer Submitting Test 1: Three in a row [NOIP Junior 1998] 7 3 3

章节 2. CSP-S

开放

题目 尝试 AC 难度
P170   [CSP-S 2019] Gray Code 2 2 3
P171   [CSP-S 2019] Bracket Tree 4 2 6
P172   [CSP-S 2019] Cut and Swap 3 2 10
P173   [CSP-S 2019] Guest Treating 2 2 8
P174   [CSP-S 2019] Brute Force Optimization 54 2 9
P175   [CSP-S 2019] Subtree Centroids 4 3 10
P138   [CSP-S 2020] Julian Calendar 1 1 6
P139   [CSP-S 2020] Zoo Enlargement 1 1 4
P140   [CSP-S 2020] Database Optimization 1 1 7
P141   [CSP-S 2020] Snake Duels 1 1 10
P22   [CSP-S 2021] Airport programming 2 2 6
P23   [CSP-S 2021] Starred bracket sequence 10 2 7
P24   [CSP-S 2021] Palindromic deque 2 2 6
P25   [CSP-S 2021] Black and white crosses 9 2 9
P18   [CSP-S 2022] Holiday plan 4 3 7
P19   [CSP-S 2022] Multiplication game 5 2 6
P20   [CSP-S 2022] Galaxy war 5 2 8
P21   [CSP-S 2022] Network test 7 2 9
P14   [CSP-S 2023] Password lock 5 4 3
P15   [CSP-S 2023] 2-pop game 4 2 6
P16   [CSP-S 2023] Structural morphology 2 2 6
P17   [CSP-S 2023] Tree planting 15 2 6
P10   [CSP-S 2024] Card duels 10 6 2
P11   [CSP-S 2024] Overspeed versus cameras 3 3 5
P12   [CSP-S 2024] Red and blue array 8 2 7
P13   [CSP-S 2024] Arena championship 5 3 10

章节 3. NOIP

开放

题目 尝试 AC 难度
P166   [NOIP 2020] Sewage Emission 3 2 5
P167   [NOIP 2020] String Breakdown 2 2 8
P168   [NOIP 2020] Ball Sorting Puzzle 3 2 9
P169   [NOIP 2020] K-Dimension Movements 2 2 10
P162   [NOIP 2021] Number Game 2 2 4
P163   [NOIP 2021] Popcount-limited Sequence 2 2 7
P164   [NOIP 2021] Variance Minimization 3 2 8
P165   [NOIP 2021] Count Valid Moves 31 2 10
P134   [NOIP 2022] CCF Garden 2 2 6
P135   [NOIP 2022] 2-pop Game with Stacks 4 3 10
P136   [NOIP 2022] Barrack Connection Guarding 2 2 8
P137   [NOIP 2022] One-Versus-One Programming Contest 4 2 9
P130   [NOIP 2023] "Abandon" Replacement Plan 5 4 3
P131   [NOIP 2023] True, False, Unknown, and a Certainty Seeker 3 2 6
P132   [NOIP 2023] "Particular Order" Auto Complete Challenge 2 1 9
P133   [NOIP 2023] Running Motivation Analysis 2 1 8
P108   [NOIP 2024] Bit Alignment 4 3 7
P109   [NOIP 2024] Assignment Counting 4 2 6
P110   [NOIP 2024] Edge-based Trees 4 2 9
P111   [NOIP 2024] Deepest LCA 8 1 8
 
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