Reordering the Cows 时间限制: 1 Sec  内存限制: 64 MB提交: 18  解决: 7[提交][状态][讨论版] 题目描述 Farmer John's N cows (1 <= N <= 100), conveniently numbered 1..N, are standing in a row.  Their ordering is described by an array A, where A(i) is the number of the cow in p…

CSU-ACM寒假集训选拔-入门题 仅选择部分有价值的题 J(2165): 时间旅行 Description 假设 Bobo 位于时间轴(数轴)上 t0 点,他要使用时间机器回到区间 (0, h] 中. 当 Bobo 位于时间轴上 t 点,同时时间机器有 c 单位燃料时,他可以选择一个满足 \(\lceil\frac{x}{h}\rceil\leq c\) 的非负整数 x, 那么时间机器会在 [0, x]中随机整数 y,使 Bobo 回到 (t − y) 点,同时消耗 y 单位燃料. (其中 ⌈…

Roadblock 时间限制: 1 Sec  内存限制: 64 MB提交: 9  解决: 5[提交][状态][讨论版] 题目描述 Every morning, FJ wakes up and walks across the farm from his house to the barn.  The farm is a collection of N fields (1 <= N <= 250) connected by M bidirectional pathways (1 <= M…

Cow Art 时间限制: 1 Sec  内存限制: 64 MB提交: 13  解决: 10[提交][状态][讨论版] 题目描述 A little known fact about cows is the fact that they are red-green colorblind, meaning that red and green look identical to them.  This makes it especially difficult to design artwork t…

Mooo Moo 时间限制: 1 Sec  内存限制: 64 MB提交: 5  解决: 4[提交][状态][讨论版] 题目描述 Farmer John has completely forgotten how many cows he owns!  He is too embarrassed to go to his fields to count the cows, since he doesn't want the cows to realize his mental lapse.  Ins…

Cow Jog 时间限制: 1 Sec  内存限制: 64 MB提交: 24  解决: 5[提交][状态][讨论版] 题目描述 Farmer John's N cows (1 <= N <= 100,000) are out exercising their hooves again, jogging along an infinite track.  Each cow starts at a distinct position on the track, and some cows run…

先写一部分,持续到更新完. A: 寒衣调 Description 男从戎,女守家.一夜,狼烟四起,男战死沙场.从此一道黄泉,两地离别.最后,女终于在等待中老去逝去.逝去的最后是换尽一生等到的相逢和团圆. 某日两人至奈何桥前,服下孟婆汤. 每滴孟婆汤都有强度不一的药效,设一碗孟婆汤共N滴(0<N<100000),其中第i滴(0≤i<N)用b[i]表示. 孟婆汤的药效与原料有关,设熬制前同样有N滴原料,第i滴原料用a[i]表示,0≤a[i]<2^32. 药效b[i]的计算方法为b[i]…

day1:学习seach和回溯,初步了解. day2:深度优化搜索 T1 洛谷P157:https://www.luogu.com.cn/problem/P1157 题目描述 排列与组合是常用的数学方法,其中组合就是从nnn个元素中抽出rrr个元素(不分顺序且r≤n)r \le n)r≤n),我们可以简单地将nnn个元素理解为自然数1,2,-,n1,2,-,n1,2,-,n,从中任取rrr个数. 现要求你输出所有组合. 例如n=5,r=3n=5,r=3n=5,r=3,所有组合为: 123,124…

One of our delivery robots is malfunctioning! The job of the robot is simple; it should follow a list of instructions in order to reach a target destination. The list of instructions is originally correct to get the robot to the target. However, some…

Wooden Sticks There is a pile of n wooden sticks. The length and weight of each stick are known in advance. The sticks are to be processed by a woodworking machine in one by one fashion. It needs some time, called setup time, for the machine to prepa…