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HDU ACM 4465 Candy->概率-数学期望-排列组合
题意:有两个箱子,里面各放有糖n个,每天从两个之中任取一颗糖,突然有一天小孩取糖时发现一个盒子里空了,问另一个盒子里面现在有多少糖(求期望值)? #include #include using namespace std; double F[400008]; double C_N_M(int n,int m) { return F[n]-F[m]-F[n-m]; } void Ini...
分类:其他好文   时间:2015-06-09 10:00:26    阅读次数:542
SELECT
CREATE TABLE CANDY_TBL SELECT * FROM PRODUCTS_TBL;INSERT INTO CANDY_TBL VALUES ('9', 'CANDY CORN', 1.35);SELECT * FROM CANDY_TBL;+---------+----------...
分类:其他好文   时间:2015-05-30 00:31:29    阅读次数:157
HDU-1034-Candy Sharing Game(C++ && 简单模拟)
Candy Sharing Game Time Limit: 2000/1000 MS (Java/Others)    Memory Limit: 65536/32768 K (Java/Others) Total Submission(s): 3703    Accepted Submission(s): 2311 Problem Description A numbe...
分类:编程语言   时间:2015-05-29 23:23:16    阅读次数:387
Candy -- leetcode
There are N children standing in a line. Each child is assigned a rating value. You are giving candies to these children subjected to the following requirements: Each child must have at least on...
分类:其他好文   时间:2015-05-29 18:18:54    阅读次数:115
Candy Sharing Game(hdoj1034)
Problem DescriptionA number of students sit in a circle facing their teacher in the center. Each student initially has an even number of pieces of can...
分类:其他好文   时间:2015-05-22 00:23:25    阅读次数:125
LeetCode:Candy
题目描述: There are N children standing in a line. Each child is assigned a rating value. You are giving candies to these children subjected to the following requirements: Each child must have ...
分类:其他好文   时间:2015-05-19 16:37:14    阅读次数:190
poj 3083 Children of the Candy Corn(bfs+dfs)
Children of the Candy Corn Time Limit: 1000MS   Memory Limit: 65536K Total Submissions: 10739   Accepted: 4626 Description The cornfield maze is a popular Halloween treat. ...
分类:其他好文   时间:2015-05-16 14:58:36    阅读次数:139
uva 1639--精度处理方法之取对数对数(uva 1639)
1639 - CandyTime limit: 3.000 seconds1639 CandyLazyChild is a lazy child who likes candy very much. Despite being very young, he has two large candy b...
分类:其他好文   时间:2015-05-14 23:27:49    阅读次数:215
UVa1639 - Candy(期望+对数精度处理)
注意题意是开始两个盒子各有n个糖果,等吃完就只有两种情况,盒子1没了,或者盒子2没了。 这完全是个求概率期望的数学问题。借用二项分布公式: P(ξ=K)= C(n,k) * p^k * (1-p)^(n-k), 其中C(n, k) = n!/(k! * (n-k)!)注意!:第二个等号后面的括号里的是上标,表示的是方幂。 得出第i次打开盒子1没糖的概率C(2n-1,n)p^(n+1)(1...
分类:其他好文   时间:2015-05-08 11:03:17    阅读次数:219
codeforces 400 C Inna and Huge Candy Matrix【模拟】
题意:给出一个矩形的三种操作,顺时针旋转,逆时针旋转,对称,给出原始坐标,再给出操作数,问最后得到的坐标画一下模拟一下操作就可以找到规律了 1 #include 2 #include 3 #include 4 #include 5 #include 6 #include 7 #incl...
分类:其他好文   时间:2015-05-05 15:54:30    阅读次数:128
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