ID 题目 显示标签 隐藏标签 AC / 尝试 难度
9653 lg15134   [ROIR 2026] XOR 染色 1 / 2 10
7199 lg15245   [WC2026] 二进制 1 / 2 10
5938 lg15256   [USACO26JAN2] Purchasing Milk B 8 / 29 7
2027 lg15259   [USACO26JAN2] Farmer John Loves Rotations S 6 / 24 8
2268 lg15261   [USACO26JAN2] Lexicographically Smallest Path G 2 / 30 9
2269 lg15262   [USACO26JAN2] The Chase G 3 / 13 9
2264 lg15263   [USACO26JAN2] Circle of Cows P 1 / 2 10
6542 lg15570   [USACO26FEB] Make All Distinct B 9 / 22 7
12474 lg15572   [USACO26FEB] Swap to Win B 8 / 16 8
12475 lg15573   [USACO26FEB] Clash! S 5 / 35 8
12477 lg15575   [USACO26FEB] Point Elimination S 5 / 29 8
11193 lg15580   [USACO26FEB] Blast Damage P 1 / 1 10
9004 lg15809    [JOI 2013 Final] JOIOI 塔 1 / 2 10
9007 lg15812    [JOI 2014 Final] IOI 馒头 1 / 1 10
9011 lg15816    [JOI 2015 Final] 铁路旅行 1 / 1 10
12643 lg15892   [COCI 2025/2026 #6] 教室 / Učionica 11 / 44 7
12602 lg17141   [NOI 2026] 传送 1 / 1 10
9826 loj512   「LibreOJ NOI Round #1」春游 0 / 0 (无)
9835 loj521   「LibreOJ β Round #3」绯色 IOI(抵达) 0 / 0 (无)
9843 loj529   「LibreOJ β Round #5」自然语言 0 / 0 (无)
9844 loj530   「LibreOJ β Round #5」最小倍数 0 / 0 (无)
9856 loj542   「LibreOJ NOIP Round #1」序列划分 0 / 0 (无)
9859 loj545   「LibreOJ β Round #7」小埋与游乐场 0 / 0 (无)
9874 loj560   「LibreOJ Round #9」Menci 的序列 0 / 0 (无)
6258 loj2041   「SHOI2015」聚变反应炉 2 / 2 10
5694 loj2120   「HEOI2015」定价 2 / 3 10
5697 loj2123   「HEOI2015」最短不公共子串 1 / 1 10
4190 loj2165   「POI2011 R3」炸药 Dynamite 1 / 2 10
4194 loj2170   「POI2011 R3」木棍 Sticks 1 / 5 10
5278 loj2221   「HEOI2014」南园满地堆轻絮 2 / 2 10
10538 loj2274   「JXOI2017」加法 1 / 1 10
8967 loj2324   「清华集训 2017」小 Y 和二叉树 1 / 2 10
5786 loj2371   「BalticOI 2015」网络 1 / 2 10
10591 loj2405   「THUPC 2017」玩游戏 / Game 1 / 1 10
3744 loj2426   「POI2010」工会 Guilds 1 / 1 10
3756 loj2455   「POI2010」最小化游戏 The Minima Game 1 / 1 10
5188 loj2467   「POI2014 R1」砖块 Bricks 1 / 1 10
2271 loj2474   「2018 集训队互测 Day 3」北校门外的未来 1 / 1 10
2428 loj2481   「CEOI2017」Sure Bet 2 / 3 10
2431 loj2484   「CEOI2017」Palindromic Partitions 1 / 1 10
10539 loj2543   「JXOI2018」排序问题 1 / 4 10
10541 loj2545   「JXOI2018」守卫 1 / 1 10
4012 loj2634   「BalticOI 2011 Day2」会议 Meetings 1 / 1 10
2757 loj2654   「POI2007 R2」洪水 The Flood 9 / 37 7
2763 loj2660   「POI2007 R3」砝码 Weights 8 / 15 7
4461 loj2697   「POI2012 R2」斐波那契表示法 Fibonacci Representation 1 / 1 10
4462 loj2698   「POI2012 R3」超夸克 Squarks 1 / 1 10
4464 loj2700   「POI2012 R3」工资 Salaries 1 / 2 10
4465 loj2701   「POI2012 R3」找平地面 Leveling Ground 1 / 1 10
4467 loj2703   「POI2012 R3」仓库式商店 Warehouse Store 6 / 9 9
5788 loj2709   「BalticOI 2015」黑客 2 / 2 10
10382 loj2746   「CTSC2011」道路监控 0 / 0 (无)
10583 loj2774   「BalticOI 2018」多角恋 1 / 1 10
2987 loj2784   「BalticOI 2016 Day2」迷宫 0 / 2 10
3371 loj2785   「BalticOI 2016 Day2」交换 1 / 1 10
10659 loj2792   「CCO 2015」饥饿的狐狸 1 / 1 10
10084 loj2847   「ROI 2018 Day 2」抄本 0 / 0 (无)
10086 loj2849   「ROI 2018 Day 2」机器人马拉松 0 / 0 (无)
10087 loj2850   「ROI 2018 Day 2」无进位加法 0 / 0 (无)
3012 loj2892   「2018-2019 集训队作业 Day 1」蜀道难 0 / 37 10
3686 loj2984   「WC2019」远古计算机 0 / 0 (无)
10363 loj2992   「CTSC2016」科学考察队 0 / 0 (无)
10534 loj3094   「BJOI2019」删数 0 / 0 (无)
10716 loj3216   「PA 2019」Wina 1 / 1 10
10721 loj3221   「PA 2019」Szprotki i szczupaki 1 / 1 10
2376 loj3234   「POI2020 R1」Pomniejszenie 1 / 1 10
10630 loj3318   「CCO 2020」赶作业 ddl 1 / 1 10
10634 loj3322   「CCO 2020」购物计划 1 / 1 10
10561 loj3357   「BalticOI 2017 Day2」Cat in a tree 1 / 1 10
10429 loj3404   「2020-2021 集训队作业」Defend City 1 / 1 10
10866 loj3550   「COI 2020」Pastiri 1 / 1 10
10626 loj3580   「CCO 2021」商旅 1 / 1 10
10666 loj3599   「PA 2021」Koszulki 1 / 3 10
10668 loj3601   「PA 2021」Oranżada 1 / 1 10
10669 loj3602   「PA 2021」Pandemia 1 / 1 10
10673 loj3606   「PA 2021」Sumy 1 / 1 10
1650 loj3631   「2021 集训队互测」学姐买瓜 1 / 1 10
8927 loj3637   「2021 集训队互测」数列重排 1 / 2 10
7261 loj3737   「LNOI2022」吃 1 / 1 10
7270 loj3776   「BalticOI 2022 Day1」Uplifting Excursion 1 / 1 10
7277 loj3814   「CEOI2022」Homework 1 / 2 10
7458 loj3947   「春季测试 2023」圣诞树 1 / 1 10
7128 loj4024   「CCO 2022」Rainy Markets 1 / 1 10
7327 loj4035   「CCO 2023」Flip it and Stick it 1 / 1 10
7499 loj4055   「GDKOI-S 2024」不休陀螺 9 / 55 8
7573 loj4177   「CEOI2024」洒水器 7 / 16 8
7582 loj4192   「BalticOI 2024」Jobs 1 / 2 10
7407 loj4261   「KTSC 2024 R2」跳跃游戏 1 / 1 10
8984 loj4837   「POI 2020/2021 R3」Surowa zima 1 / 1 10
9548 loj4869   「PA 2025」Egzamin 1 / 1 10
5494 loj4896   E60 树形DP+贪心 「POI2014 R3」农场工艺 FarmCraft 2 / 2 10
6388 loj4908   「POI2017 R1」飞扬的小鸟 Flappy Bird 2 / 2 10
10949 loj4935   「EGOI2021」卢娜爱磕 cp 1 / 1 10
10938 loj4954   「EGOI2023」狂欢节总管 1 / 1 10
10945 loj4963   「EGOI2024」车位分配 1 / 1 10
5084 loj5006   「POI2013 R1」出租车 Taxis 1 / 1 10
5079 loj5009   「POI2013 R2」侦探 Inspector 1 / 1 10
5092 loj5014   「POI2013 R3」字节计算机 Bytecomputer 2 / 2 10
5090 loj5019   「POI2013 R3」极化 Polarization 1 / 1 10
6177 loj5061   「POI2017 R3」披萨配送员 Pizza delivery 2 / 7 10

分类

试试手气

根据当前过滤条件随机选择一道题