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HDU 3911 Black And White 分段树 题解
Problem DescriptionThere are a bunch of stones on the beach; Stone color is white or black. Little Sheep has a magic brush, she can change the color o...
分类:其他好文   时间:2014-08-20 12:11:22    阅读次数:209
UVA - 1482 Playing With Stones
Description You and your friend are playing a game in which you and your friend take turns removing stones from piles. Initially there are N piles with a1, a2, a3,..., aN number of stones. On eac...
分类:其他好文   时间:2014-08-17 11:46:42    阅读次数:172
HDU 4573 Throw the Stones(动态三维凸包)(2013 ACM-ICPC长沙赛区全国邀请赛)
题目链接:http://acm.hdu.edu.cn/showproblem.php?pid=4573Problem Description Remember our childhood? A few naked children throw stones standing on the same....
分类:其他好文   时间:2014-08-14 14:01:08    阅读次数:226
uva 1482 - Playing With Stones(Nim游戏)
题目链接: uva 1482 - Playing With Stones 题目大意:n堆石子,给定每堆石子的个数,两个人分别从操作,每次可以从一堆中取走至少一个石子,但是不能超过一半。如果不能操作则视为失败。 解题思路:对于每一堆式子来说,可以看作一个Nim游戏,但是SG(x)并不等于x,因为每次取石子不能超过一半,所以对于偶数SG(x)=x/2,对于奇数SG(x)=SG(x/2). ...
分类:其他好文   时间:2014-08-06 01:59:40    阅读次数:251
SPOJ AMR10I Dividing Stones --DFS
题意:给n个石头,分成一些部分(最多n部分,随便分),问分完后每部分的数量的乘积有多少种情况。分析:可以看出,其实每个乘积都可以分解为素数的乘积,比如乘积为4,虽然可以分解为4*1,但是更可以分解为2*2*1,所以就可以枚举素因子来分解,dfs即可。代码:#include #include #inc...
分类:其他好文   时间:2014-08-05 21:56:00    阅读次数:252
poj 3400 Dropping the stones
//next_permutation全排列 # include # include # include using namespace std; struct node { int w; int v; }; struct node a[10010]; int max1(int x,int y) { return x>y?x:y; } int main() { int i,n,d,fl...
分类:其他好文   时间:2014-08-04 21:33:18    阅读次数:279
SPOJ AMR 10I Dividing Stones(搜索)
Dividing Stones Time limit: 7s Source limit: 50000B Memory limit: 256MB There are N stones, which can be divided into some piles arbitrarily. Let the v...
分类:其他好文   时间:2014-08-01 19:42:12    阅读次数:261
[ACM] hdu 4248 A Famous Stone Collector (DP+组合)
A Famous Stone Collector Problem Description Mr. B loves to play with colorful stones. There are n colors of stones in his collection. Two stones with the same color are indistinguishable. M...
分类:其他好文   时间:2014-07-30 17:41:44    阅读次数:287
(校赛)URAL 1998 The old Padawan
Luke Skywalker is having exhausting practice at a God-forsaken planet Dagoba. One of his main difficulties is navigating cumbersome objects using the Power. Luke’s task is to hold several stones in ...
分类:其他好文   时间:2014-07-29 13:15:57    阅读次数:326
hdu 1896 Stones(优先队列)
# include # include # include using namespace std; struct node { int pos; int d; int num; friend bool operator n2.d;//仍的距离从小到大 return...
分类:其他好文   时间:2014-07-21 11:43:44    阅读次数:180
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