| P2601 | P2601 [ZJOI2009] 对称的正方形 |
| P2602 | P2602 [ZJOI2010] 数字计数 |
| P2604 | P2604 [ZJOI2010] 网络扩容 |
| P2605 | P2605 [ZJOI2010] 基站选址 |
| P2606 | P2606 [ZJOI2010] 排列计数 |
| P2607 | P2607 [ZJOI2008] 骑士 |
| P2609 | P2609 [ZJOI2012] 数列 |
| P2610 | P2610 [ZJOI2012] 旅游 |
| P2612 | P2612 [ZJOI2012] 波浪 |
| P2613 | P2613 【模板】有理数取余 |
| P2617 | P2617 Dynamic Rankings |
| P2619 | P2619 [国家集训队] Tree I |
| P2627 | P2627 [USACO11OPEN] Mowing the Lawn G |
| P2633 | P2633 Count on a tree |
| P2634 | P2634 [国家集训队] 聪聪可可 |
| P2638 | P2638 安全系统 |
| P2656 | P2656 采蘑菇 |
| P2662 | P2662 [WC2002] 牛场围栏 |
| P2664 | P2664 树上游戏 |
| P2668 | P2668 [NOIP 2015 提高组] 斗地主 |
| P2671 | P2671 [NOIP 2015 普及组] 求和 |
| P2672 | P2672 [NOIP 2015 普及组] 推销员 |
| P2675 | P2675 《瞿葩的数字游戏》T3-三角圣地 |
| P2679 | P2679 [NOIP 2015 提高组] 子串 |
| P2680 | P2680 [NOIP 2015 提高组] 运输计划 |
| P2687 | P2687 [USACO4.3] 逢低吸纳 Buy Low, Buy Lower |
| P2698 | P2698 [USACO12MAR] Flowerpot S |
| P2700 | P2700 逐个击破 |
| P2704 | P2704 [NOI2001] 炮兵阵地 |
| P2707 | P2707 Facer 帮父亲 |
| P2709 | P2709 【模板】莫队 / 小B的询问 |
| P2713 | P2713 罗马游戏 |
| P2717 | P2717 寒假作业 |
| P2723 | P2723 [USACO3.1] 丑数 Humble Numbers |
| P2727 | P2727 [USACO3.2] 01串 Stringsobits |
| P2731 | P2731 [USACO3.3] 骑马修栅栏 Riding the Fences |
| P2732 | P2732 [USACO3.3] 商店购物 Shopping Offers |
| P2736 | P2736 [USACO3.4] “破锣摇滚”乐队 Raucous Rockers |
| P2737 | P2737 [USACO4.1] 麦香牛块 Beef McNuggets |
| P2738 | P2738 [USACO4.1] 篱笆回路 Fence Loops |
| P2740 | P2740 [USACO4.2] 草地排水 Drainage Ditches |
| P2742 | P2742 【模板】二维凸包 / [USACO5.1] 圈奶牛Fencing the Cows |
| P2744 | P2744 [USACO5.3] 量取牛奶Milk Measuring |
| P2745 | P2745 [USACO5.3] 窗体面积Window Area |
| P2746 | P2746 [IOI 1996 / USACO5.3] 校园网 Network of Schools |
| P2754 | P2754 [CTSC1999] 家园 / 星际转移问题 |
| P2756 | P2756 飞行员配对方案问题 |
| P2757 | P2757 [国家集训队] 等差子序列 |
| P2761 | P2761 软件补丁问题 |
| P2762 | P2762 太空飞行计划问题 |
| P2763 | P2763 试题库问题 |
| P2764 | P2764 最小路径覆盖问题 |
| P2765 | P2765 魔术球问题 |
| P2766 | P2766 最长不下降子序列问题 |
| P2767 | P2767 树的数量 |
| P2770 | P2770 航空路线问题 |
| P2774 | P2774 方格取数问题 |
| P2783 | P2783 有机化学之神偶尔会做作弊 |
| P2787 | P2787 语文1（chin1）- 理理思维 |
| P2789 | P2789 直线交点数 |
| P2791 | P2791 幼儿园篮球题 |
| P2797 | P2797 Facer的魔法 |
| P2801 | P2801 教主的魔法 |
| P2804 | P2804 神秘数字 |
| P2812 | P2812 校园网络【[USACO]Network of Schools加强版】 |
| P2824 | P2824 [HEOI2016/TJOI2016] 排序 |
| P2825 | P2825 [HEOI2016/TJOI2016] 游戏 |
| P2827 | P2827 [NOIP 2016 提高组] 蚯蚓 |
| P2831 | P2831 [NOIP 2016 提高组] 愤怒的小鸟 |
| P2835 | P2835 刻录光盘 |
| P2836 | P2836 加油问题 |
| P2839 | P2839 [国家集训队] middle |
| P2845 | P2845 [USACO15DEC] Switching on the Lights S |
| P2846 | P2846 [USACO08NOV] Light Switching G |
| P2850 | P2850 [USACO06DEC] Wormholes G |
| P2851 | P2851 [USACO06DEC] The Fewest Coins G |
| P2852 | P2852 [USACO06DEC] Milk Patterns G |
| P2854 | P2854 [USACO06DEC] Cow Roller Coaster S |
| P2859 | P2859 [USACO06FEB] Stall Reservations S |
| P2860 | P2860 [USACO06JAN] Redundant Paths G |
| P2862 | P2862 [USACO06JAN] Corral the Cows G |
| P2863 | P2863 [USACO06JAN] The Cow Prom S |
| P2865 | P2865 [USACO06NOV] Roadblocks G |
| P2868 | P2868 [USACO07DEC] Sightseeing Cows G |
| P2870 | P2870 [USACO07DEC] Best Cow Line G |
| P2874 | P2874 [USACO07FEB] Building A New Barn G |
| P2875 | P2875 [USACO07FEB] The Cow Lexicon S |
| P2876 | P2876 [USACO07JAN] Problem Solving G |
| P2882 | P2882 [USACO07MAR] Face The Right Way G |
| P2885 | P2885 [USACO07NOV] Telephone Wire G |
| P2886 | P2886 [USACO07NOV] Cow Relays G |
| P2890 | P2890 [USACO07OPEN] Cheapest Palindrome G |
| P2891 | P2891 [USACO07OPEN] Dining G |
| P2893 | P2893 [USACO08FEB] Making the Grade G |
| P2894 | P2894 [USACO08FEB] Hotel G |
| P2898 | P2898 [USACO08JAN] Haybale Guessing G |
| P2900 | P2900 [USACO08MAR] Land Acquisition G |
| P2901 | P2901 [USACO08MAR] Cow Jogging G |
| P2905 | P2905 [USACO08OPEN] Crisis on the Farm G |
| P2915 | P2915 [USACO08NOV] Mixed Up Cows G |
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