The classic Two Glass Balls brain-teaser is often posed as: “Given two identical glass spheres, you would like to determine the lowest floor in a 100-story building from which they will break when dropped. Assume the spheres are undamaged when droppe…
public class Test24 { public static void main(String[] args) { // 鸡蛋0.1元一个,鸭蛋3元一个,鹅蛋6元一个.求一百元买一百个蛋. for (int i = 1; i <= 1000; i++) { for (int j = 1; j <= 100 / 3; j++) { for (int k = 1; k <= 100 / 6; k+…
6.5 There is a building of 100 floors. If an egg drops from the Nth floor or above, it will break. If it's dropped from any floor below, it will not break. You're given two eggs. Find N, while minimizing the number of drops for the worst case 这道题说有10…
input T 1<=T<=10000 n m 1<=n<=2000000007 1<=m<=32 output m个鸡蛋从1到n哪一楼x扔下去刚好没碎,而再x+1楼扔下去就碎了,求最少扔的次数无论x为1到n的哪个数都能确定x 如果x>32,输出Impossible,否则输出x 做法:dp,d(x,y)=d(x,y-1)+d(x-1,y-1),x:egg,y:floor求出下限,即x个鸡蛋至少要试多少次 # include <stdio.h> # in…
You are given K eggs, and you have access to a building with N floors from 1 to N. Each egg is identical in function, and if an egg breaks, you cannot drop it again. You know that there exists a floor F with 0 <= F <= N such that any egg dropped at…
4554 BallsThe classic Two Glass Balls brain-teaser is often posed as:“Given two identical glass spheres, you would like to determine the lowest floor in a 100-storybuilding from which they will break when dropped. Assume the spheres are undamagedwhen…
问题 一筐鸡蛋,一个一个取正好取完,两个两个取剩下一个,三个三个取正好取完,四个四个取剩下一个,五个五个取少一个,六个六个取剩下三个,七个七个取正好取完,八个八个取剩下一个,九个九个取正好取完,共多少鸡蛋. 数学解法 第五个条件特殊,可以改为:五个五个取剩四个. 数学符号 lcm(a,b,...,c)=x 最小公约数x mod y = z 余数 数学描述 x mod 1 = 0 x mod 2 = 1 x mod 3 = 0 x mod 4 = 1 x mod 5 = 4 x mod 6 = 3…
题目背景 Czyzoiers 都想知道小 x 为什么对鸡蛋饼情有独钟.经过一番逼问,小 x 道出 了实情:因为他喜欢圆. 题目描述 最近小 x 又发现了一个关于圆的有趣的问题:在圆上有2N 个不同的点,小 x 想用 N 条线段把这些点连接起来(每个点只能连一条线段), 使所有的线段都不想交,他想知道这样的连接方案有多少种? 输入输出格式 输入格式: 有且仅有一个正整数 N 输出格式: 要求的方案数(结果 mod 100000007). 输入输出样例 输入样例#1: 24 输出样例#1: 4057…
每个蛋的功能都是一样的,如果一个蛋碎了,你就不能再把它掉下去. 你知道存在楼层 F ,满足 0 <= F <= N 任何从高于 F 的楼层落下的鸡蛋都会碎,从 F 楼层或比它低的楼层落下的鸡蛋都不会破. 每次移动,你可以取一个鸡蛋(如果你有完整的鸡蛋)并把它从任一楼层 X 扔下(满足 1 <= X <= N). 你的目标是确切地知道 F 的值是多少. 无论 F 的初始值如何,你确定 F 的值的最小移动次数是多少? 示例 1: 输入:K = 1, N = 2 输出:2 解释: 鸡蛋从…
