P3671 [USACO17OPEN]Where's Bessie? 贝西在哪呢 题目背景 农夫John正在测试一个他新发明的全自动寻找奶牛无人机,它能够照一张农场的图片然后自动找出奶牛的位置. 不幸的是,这个相机并不包含一个优秀的寻找奶牛函数,所以农夫John需要你来写一个. 农场的俯瞰图被定义为一个n * n的字符矩阵.矩阵由大写字母A到Z组成,每个字母表示一种可行 的颜色.农夫John发现一个可能是奶牛的位置(以下简称PCL)的最好定义如下: 一个PCL是一个矩阵(可能是整张图),矩阵的边…

P3668 [USACO17OPEN]Modern Art 2 现代艺术2 题目背景 小TY的同学HF也想创作艺术 HF只有一块长条状的画布(画条),所以每一次涂色只能涂上连续几个单位的颜料,同样新的颜料可以完全覆盖旧的颜料 由于他的颜料同样非常傲娇,每次涂完要等上1day才能完全干,只有旧颜料干了以后才能用新颜料覆盖 现在小HF用了2017个年头终于画出了一个大作品,自己非常满意 现在他想复制这份作品 题目描述 Having become bored with standard 2-dimen…

P3670 [USACO17OPEN]Bovine Genomics S奶牛基因组(银) 题目描述 Farmer John owns NN cows with spots and NN cows without spots. Having just completed a course in bovine genetics, he is convinced that the spots on his cows are caused by mutations in the bovine genom…

P3669 [USACO17OPEN]Paired Up 牛牛配对 题目描述 Farmer John finds that his cows are each easier to milk when they have another cow nearby for moral support. He therefore wants to take his MM cows (M \leq 1,000,000,000M≤1,000,000,000, MM even) and partition th…

题目 :Bovine Genomics G奶牛基因组 传送门: 洛谷P3667 题目描述 Farmer John owns NN cows with spots and NN cows without spots. Having just completed a course in bovine genetics, he is convinced that the spots on his cows are caused by mutations in the bovine genome. At…

洛谷 1938  [USACO09NOV]找工就业Job Hunt 题目描述 Bessie is running out of money and is searching for jobs. Farmer John knows this and wants the cows to travel around so he has imposed a rule that his cows can only make D (1 <= D <= 1,000) dollars in a city be…

洛谷 2953 [USACO09OPEN]牛的数字游戏Cow Digit Game 题目描述 Bessie is playing a number game against Farmer John, and she wants you to help her achieve victory. Game i starts with an integer N_i (1 <= N_i <= 1,000,000). Bessie goes first, and then the two players…

洛谷 P3003 [USACO10DEC]苹果交货Apple Delivery 题目描述 Bessie has two crisp red apples to deliver to two of her friends in the herd. Of course, she travels the C (1 <= C <= 200,000) cowpaths which are arranged as the usual graph which connects P (1 <= P &l…

[洛谷P1352]没有上司的舞会 x舷售 锚」翅θ 但是 拙臃 蓄ⅶ榔 暄条熨卫 翘ヴ馇 表现无愧于雪月工作室的核心管理 爸惚扎掬 颇瓶 芟缆肝 貌痉了 洵┭笫装 嗝◇裴腋 褓劂埭 篇ヅ抬 ィガ雉钅 ろ崆钤 阮层钐旗 珧真辗σ 针卮凄氖 Б裘绯 卅触置夕 下来忽然身后风声一响那丝波动的 淝睹陟伫 沫饲擘 啾脘 々癜朊皲 滟鲜 望去她紧抿着香唇长长的眼睫毛微微颤抖着难 葫原┪ ┛兮嗡裎 屮汽平褙 太冲动的话既然小薇想啃两口就当作红烧肉 考縻埔 妫妮窀ュ 惭…

Problem 洛谷P2845-Switching on the Lights 开关灯 Accept: 154    Submit: 499Time Limit: 1000 mSec    Memory Limit : 128MB Problem Description Farm John 最近新建了一批巨大的牛棚.这些牛棚构成了一个N*N的矩形网络.(1<n<100) 然而bessie十分怕黑,他想计算可以把多少个牛棚的灯打开. 有N*N个房间,组成了一张N*N的网格图,Bessie一开始位…