题意:给了你n个蛋糕,然后分给m+1个人,问每个人所能得到的最大体积的蛋糕,每个人的蛋糕必须是属于同一块蛋糕的! 分析:浮点型二分,二分最后的结果即可,这里要注意圆周率的精度问题! #include<iostream> #include<stdio.h> #include<string.h> #include<math.h> using namespace std; #define pi acos(-1.0) #define pes 1e-8 ]; int…

Pie Time Limit: 5000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 7302    Accepted Submission(s): 2732 Problem Description My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I h…

转自:http://www.cnblogs.com/kuangbin/archive/2012/08/23/2653003.html   一种是直接根据公式计算的,另外一种是二分算出来的.两种方法速度都很快,充分体会到二分的效率之高啊~~~   题目中一个很重要的条件就是 (Lx*Lx+Ly*Ly) < vD*vD < vB*vB , 这样说明一定是可以追上的,而且可以以最大的距离射中,所以第一问的答案一定就是L的. 假设追击者跑的时间是 t1,那么肯定子弹飞行时间就是 L/vB 了 那么此时…

题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=1969 Pie Time Limit: 5000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 4513    Accepted Submission(s): 1819 Problem Description My birthday is coming up and trad…

Problem Description My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I have a number N of them, of various tastes and of various sizes. F of my friends are coming to my party and each of them gets a piece of pie. This…

Pie Time Limit: 5000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 12394    Accepted Submission(s): 4371 Problem Description My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I…

Pie Time Limit: 5000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 16554    Accepted Submission(s): 5829   My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I have a number N of…

[分析] “虽然不是求什么最大的最小值(或者反过来)什么的……但还是可以用二分的,因为之前就做过一道小数型二分题(下面等会讲) 考虑二分面积,下界L=0,上界R=∑ni=1nπ∗ri2.对于一个中值x和一张半径r的饼来说,这张饼能够分出的最多分数显然是:⌊π∗r2x⌋,所以我们只需要求出∑ni=1⌊π∗ri2x⌋,判断其与f+1的关系即可 特别要注意的一点:π的大小!,因为r≤104r≤104,所以r2≤108r2≤108,又因为题目要求精确到三位小数,所以ππ就要精确到10-11,即π=3.1…

Problem Description My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I have a number N of them, of various tastes and of various sizes. F of my friends are coming to my party and each of them gets a piece of pie. This…

Pie Time Limit: 5000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others)Total Submission(s): 12138    Accepted Submission(s): 4280 Problem Description My birthday is coming up and traditionally I'm serving pie. Not just one pie, no, I…