ID Problem Show tags Hide tags AC / Tried Difficulty
17565 P12699   [KOI 2022 Round 2] 红蓝 0 / 0 7
17566 P12700   [KOI 2022 Round 2] 停车场 0 / 0 7
17617 P12761   [POI 2018 R2] 列车员 Conductor 0 / 0 8
17618 P12762   [POI 2018 R2] 电信中继站 Transceivers 0 / 0 7
17699 P12845   [蓝桥杯 2025 国 A] 连锁反应【数据强度待检验】 0 / 0 8
17700 P12846   [蓝桥杯 2025 国 A] 翻转硬币 0 / 0 7
17769 P12912   [POI 2020/2021 R2] 收拾背包 / Pakowanie plecaka 0 / 0 8
17848 P12998   [GCJ 2022 #3] Duck, Duck, Geese 0 / 0 7
17920 P13069   [GCJ 2020 #3] Recalculating 0 / 0 8
17926 P13070   [GCJ 2020 Finals] Pack the Slopes 0 / 0 7
18789 P13274   [NOI2025] 三目运算符 0 / 0 7
18791 P13276   [NOI2025] 绝对防御 0 / 0 9
18799 P13293   [GCJ 2013 #1C] The Great Wall 0 / 0 7
18981 P13462   [GCJ 2008 #1B] Mousetrap 0 / 0 6
19037 P13508   [OOI 2024] Burenka and Pether 0 / 0 9
19038 P13509   [OOI 2024] Almost Certainly 0 / 0 7
19020 P13514   [KOI 2025 #1] 干草堆 0 / 0 7
19022 P13516   [KOI 2025 #1] 快递运输 0 / 0 7
19026 P13520   [KOI 2025 #2] 存放箱子 0 / 0 7
19028 P13522   [KOI 2025 #2] 机器人 0 / 0 7
19040 P13528   [OOI 2023] Gasoline prices / 油价 0 / 0 9
19042 P13530   [OOI 2023] Music Festival / 音乐节 0 / 0 7
18331 P13567   「CZOI-R5」折跃点 0 / 0 7
18300 P13597   『GTOI - 1D』回归空白 0 / 0 8
19119 P13610   [NWRRC 2022] Mex and Cards 0 / 0 7
18563 P13625   [ICPC 2024 APC] Tree Quiz 0 / 0 8
19128 P13631   [NWRRC 2021] Day Streak 0 / 0 8
19154 P13649   [NOISG 2016] Panda Ski 0 / 0 7
18506 P13664   「TPOI-5C」mαtrixing ωiθ μ 0 / 0 9
19201 P13719   [GCPC 2024] Dark Alley 0 / 0 7
18382 P13758   【MX-X17-T7】夏终 0 / 0 9
19250 P13767   [CERC 2021] Fishing 0 / 0 7
19256 P13773   [CERC 2021] Single-track railway 0 / 0 6
18449 P13780   「o.OI R2」愿天堂没有分块 0 / 0 8
19284 P13814   [CERC 2022] Mortgage 0 / 0 8
18383 P13819    「LDOI R3」玩玩数字 0 / 0 7
19306 P13825   【模板】线段树 1.5 0 / 0 6
18464 P13840   杏酥桐 0 / 0 8
18520 P13841   芳权多 0 / 0 8
19313 P13842   篱莘龙 0 / 0 8
19351 P13901   [CSPro 28] 星际网络 0 / 0 9
18469 P13905   「KFCOI Round #2」宿命 0 / 0 8
19333 P13914   [CSPro 26] PS 无限版 0 / 0 8
19411 P13947   [EC Final 2019] Permutation 0 / 0 8
19400 P13963   [ICPC 2023 Nanjing R] 接雨水 0 / 0 7
19450 P13976   数列分块入门 1 0 / 0 5
19453 P13979   数列分块入门 4 0 / 0 5
19454 P13980   数列分块入门 5 0 / 0 7
19455 P13981   数列分块入门 6 0 / 0 7
19456 P13982   数列分块入门 7 0 / 0 6
19457 P13983   数列分块入门 8 0 / 0 6
19469 P14003   [eJOI 2025] Reactions 0 / 0 7
18306 P14009   「florr IO Round 1」数字游戏 0 / 0 8
19474 P14013   [POCamp 2023] 送钱 / The Generous Traveler 0 / 0 7
19558 P14080   [GESP202509 八级] 最小生成树 0 / 0 7
19571 P14089   [ICPC 2023 Seoul R] K-Lottery 0 / 0 8
19572 P14090   [ICPC 2023 Seoul R] Lucky Draws 0 / 0 7
19585 P14123   [SCCPC 2021] Hourly Coding Problem 0 / 0 8
19386 P14132   【MX-X22-T3】「TPOI-4C」Another MEX Problem 0 / 0 6
19162 P14140   「SFMOI Round II」Strange Alice Game 0 / 0 7
18523 P14152   千手百眼,天下人间 0 / 0 7
18542 P14175   【MX-X23-T5】向死存魏 0 / 0 7
19616 P14188   [ICPC 2024 Hangzhou R] Barkley III 0 / 0 7
19672 P14207   [ROI 2016 Day1] 捕捞,还是不捕捞? 0 / 0 7
19648 P14228   [ICPC 2024 Kunming I] 漫步野径 0 / 0 7
19685 P14233   [COI 2011] 收视率 / TELKA 0 / 0 6
19459 P14255   列车(train) 0 / 0 7
19699 P14265   [ROI 2015 Day1] 企鹅研究 0 / 0 8
19702 P14268   [ROI 2015 Day2] 路灯 0 / 0 8
19708 P14274   [ROI 2014 Day1] Petya 与机器人 0 / 0 7
19713 P14279   [ROI 2014 Day2] 乌拉尔高速公路 0 / 0 8
19683 P14311   【MX-S8-T4】平衡三元组 0 / 0 8
19777 P14344   [JOISC 2019] 两道料理 / Two Dishes 0 / 0 9
19779 P14346   [JOISC 2019] 指定城市 / Designated Cities 0 / 0 8
19781 P14348   [JOISC 2019] 穿越时空 Bitaro / Bitaro, who Leaps through Time 0 / 0 8
19811 P14376   [JOISC 2018] 野猪 / Wild Boar 0 / 0 9
18534 P14378   【MX-S9-T1】「LAOI-16」签到 0 / 0 7
19076 P14379   【MX-S9-T2】「LAOI-16」摩天大楼 0 / 0 7
18602 P14380   【MX-S9-T3】「LAOI-16」天外来物 0 / 0 8
19816 P14383   [JOISC 2017] 港口设施 / Port Facility 0 / 0 8
19823 P14389   [JOISC 2017] 幽深府邸 / Long Mansion 0 / 0 8
19826 P14393   [JOISC 2017] 龙 2 / Dragon 2 0 / 0 9
19836 P14404   [JOISC 2016] 最差的记者 2 / Worst Reporter 2 0 / 0 8
19840 P14407   [JOISC 2015] 有趣的家庭菜园 2 / Growing Vegetables is Fun 2 0 / 0 8
19844 P14411   [JOISC 2015] 道路建设 / Road Development 0 / 0 7
19875 P14439   [JOISC 2013] 考拉 / Koala 0 / 0 7
19850 P14460   【MX-S10-T1】『FeOI-4』寻雾启示 0 / 0 6
18313 P14521   【MX-S11-T2】加减乘除 0 / 0 6
18971 P14523   【MX-S11-T4】Ice Drop 0 / 0 8
19010 P14528   [BYOI R1] 雨后屋檐 0 / 0 8
19966 P14541   [IO 2024 #3] 嘿嘿公鸡与石头 0 / 0 6
19970 P14545   [IO 2024 #3] 安全航行 0 / 0 8
19973 P14548   [IO 2024 #3] 拯救波利尼西亚 0 / 0 6
19719 P14556   [ROI 2013 Day2] 星际航程 0 / 0 6
19986 P14564   圆环 0 / 0 8
18693 P14567   【MX-S12-T2】区间 0 / 0 7
19813 P14588   [LNCPC 2025] 前线支援 0 / 0 8
19994 P14598   [COCI 2025/2026 #2] 搭塔 / Tornjevi 0 / 0 7
19884 P14617   [2019 KAIST RUN Fall] Hilbert' s Hotel 0 / 0 8
19890 P14623   [2018 KAIST RUN Fall] Coloring Roads 0 / 0 7

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