二分 (共44题)
ID Problem Title Source AC Ratio Solved Tries
1143 得票查询 yzoi 32% 95 328
1806 免费午餐 yzoi 27% 11 41
2457 PROSTI 免费幸运数字 COCi 2015-2016 7th 0% 0 1
2466 Palinilap 回文串(翻译by张盛) COCi 2015-2016 Olympiad 13% 2 16
2612 查找最接近的元素 YZOI 23% 40 181
2613 二分法求函数的零点 YZOI 52% 27 58
2614 矩形分割 YZOI 44% 2 9
2615 网线主管 Northeastern Europe 2001 14% 27 189
2616 Northwestern Europe 2006 13% 12 112
2617 和为给定数 YZOI 30% 9 33
2618 不重复地输出数 YZOI 22% 32 153
2619 膨胀的木棍 YZOI 100% 1 1
2680 Aggressive cows 愤怒的牛 USACO 2005 Feb Gold 39% 14 46
2707 Lost Cows USACO 2003 Open Orange 75% 12 16
2764 Allocation AOJ 60% 10 20
2868 River Hopscotch USACO 2006 Dec Silver 0% 0 1
2871 Milk Patterns USACO 2006 Dec Gold 0% 0 1
2873 Guess My Number 猜数字 USACO 2006 Oct Gold 0% 0 0
2902 Cow School 牛学校 USACO 2007 Jan Gold 0% 0 0
2923 Monthly Expense USACO 2007 Mar Silver 0% 0 0
2941 Cave Cows 1 洞穴奶牛第一话 USACO 2004 Open Orange 0% 0 0
3013 Greedy Gift Takers USACO 2017 December Platinum 100% 1 1
3021 Multisort 分组排序 XOJ 100% 1 2
3058 移动机器人(robots) BOI 2002, 黑书 0% 0 0
3197 Interactive Guess my Number USACO 2010 Oct Bronze 0% 0 0
3222 Chocolate Eating USACO 2010 Feb Silver 0% 0 0
3223 Covering the Corral 覆盖牛棚 USACO 2010 Feb Silver 0% 0 0
3239 Music Notes USACO 2009 Dec Silver 0% 0 0
3240 Selfish Grazing USACO 2009 Dec Silver 0% 0 0
3250 Lights 灯 USACO 2009 Nov Gold 0% 0 0
3287 Cruel Math Teacher, II USACO 2009 Feb Bronze 0% 0 0
3307 跳房子(jump) NOIP2017普及组 0% 0 1
3353 第K小数(number) HE 23% 15 75
3370 树洞(holes) HE 25% 9 36
3525 Sightseeing Cows 奶牛的旅行 USACO 2007 Dec Gold 100% 2 2
3650 Cow Cars USACO 2008 Open Silver 0% 0 0
3675 Telephone Lines 架设电话线 USACO 2008 Jan Silver 0% 0 0
3676 Haybale Guessing 猜数游戏 USACO 2008 Jan Gold 0% 0 0
3766 0805 防线 李煜东, XOJ 86% 6 7
4020 密码箱(strongbox) POI 2011 0% 0 0
4027 瓷片项链(Ring) NOI2000 27% 8 30
4061 帝国的反击(strike) CodeForces 300E 42% 5 12
4083 K-th Number POJ 2104 75% 5 8
4084 Dynamic Rankings ZOJ 2112 0% 0 7