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题目:ZOJ Problem Set - 2297 Survival 题意:给出一些怪,有两个值,打他花费的血和能够添加的血,然后有一个boss,必须把小怪全部都打死之后才干打boss,血量小于0会死.也不能大于100. 分析:定义状态:dp[st].表示在 st 状态下的血量. 然后转移:dp[st] = max (dp[st].dp[st&~(1<<i )]+p[i].first - p[i].second); 注意初始化的时候必须在開始初始化,否则easy出错. #include…
https://vjudge.net/contest/67836#problem/K n people numbered 1 to n around a circle, we eliminate every second remaining person until only one survives. Define a function J(n), represents the survivor's original number in the circle. For example, J(2…
K - Watermelon Full of Water Time Limit:3000MS     Memory Limit:65536KB     64bit IO Format:%lld & %llu Submit Status Practice ZOJ 3632 Appoint description:   Description Watermelon is very popular in the hot summer. Students in ZJU-ICPC Team also lo…
下面的文字辅助理解来自http://blog.csdn.net/tbl_123/article/details/24884861 博弈论中的 K倍动态减法游戏,难度较大,参看了好多资料才懵懂! 此题可以看作 Fibonacci 博弈的扩展,建议没弄懂 Fibonacci博弈的先学那个,个人整理 http://blog.csdn.net/tbl_123/article/details/24033245 : 而说扩展体现在数列不再是Fib数列,是根据 k 的值自行构造的,其它换汤不换药,具体构造方法…
A Statistical View of Deep Learning (I): Recursive GLMs Deep learningand the use of deep neural networks [1] are now established as a key tool for practical machine learning. Neural networks have an equivalence with many existing statistical and mach…
import java.util.Iterator; import java.util.NoSuchElementException; public class List<Item> implements Iterable<Item> { private int N; private Node first; private Node last; private class Node { private Item item; private Node next; } public L…
Django-Model操作数据库(增删改查.连表结构) 一.数据库操作 1.创建model表        …
题目大意 给定一个数列,编号从 1 到 n,现在有 m 个操作,操作分两类: 1. 修改数列中某个位置的数的值为 val 2. 询问 [L, R] 这个区间中第 k 大的是多少 n<=50,000   m<=10,000 做法分析 本以为某一天我会用 splay 或者 树套树 去搞的,结果被用块状链表搞了 其实这题和链表没什么关系,利用了块状链表分块操作的思想 首先,看看数据规模:n<=50,000,那么,我们每一块的大小可以设置为 sqrt(n) 大概 230 的样子 用一个数组 A …
Dynamic Rankings Time Limit: 10 Seconds      Memory Limit: 32768 KB The Company Dynamic Rankings has developed a new kind of computer that is no longer satisfied with the query like to simply find the k-th smallest number of the given N numbers. They…
Dynamic Rankings Time Limit: 10 Seconds      Memory Limit: 32768 KB The Company Dynamic Rankings has developed a new kind of computer that is no longer satisfied with the query like to simply find the k-th smallest number of the given N numbers. They…