Lattice animal is a set of connected sites on a lattice. Lattice animals on a square lattice are especially popular subject of study and are also known as polyominoes. Polyomino is usually represented as a set of sidewise connected squares. Polyomino…
[ZOJ2669]Lattice Animals Time Limit: 5 Seconds Memory Limit: 32768 KB Lattice animal is a set of connected sites on a lattice. Lattice animals on a square lattice are especially popular subject of study and are also known as polyminoes. Polymino…
题意 : 给定一个 w * h 的 矩阵,在矩阵中找不同n个连通块的个数(旋转,翻转,平移算作一种) 分析 : 这题的关键点有两个 ① 生成n连块并且存储起来(因为题目是多测试用例,如果每一次都重新生成必将浪费很多时间) ② 判断是否生成了重复的n连块 存储 :首先先确定用什么结构来存储n连块的信息才能更好的进行操作,n连块是多个二维坐标的集合,所以这里先定义结构体 Cell {int x, int y} 表示坐标,然后将其塞到一个集合里面set<Cell>,n连块可能有不同的多种,所以这些n…
What Kind of Friends Are You? Time Limit: 1 Second Memory Limit: 65536 KB Japari Park is a large zoo home to extant species, endangered species, extinct species, cryptids and some legendary creatures. Due to a mysterious substance known as Sands…
You are given two integers n and k. Find k-th smallest divisor of n, or report that it doesn't exist. Divisor of n is any such natural number, that n can be divided by it without remainder. Input The first line contains two integers n and k (1 ≤ n ≤ …
2019 杭电多校 5 1005 题目链接:HDU 6628 比赛链接:2019 Multi-University Training Contest 5 Problem Description A sequence of length \(n\) is called a permutation if and only if it's composed of the first \(n\) positive integers and each number appears exactly once…
一. 什么是RESTful REST与技术无关,代表的是一种软件架构风格,REST是Representational State Transfer的简称,中文翻译为“表征状态转移” REST从资源的角度类审视整个网络,它将分布在网络中某个节点的资源通过URL进行标识,客户端应用通过URL来获取资源的表征,获得这些表征致使这些应用转变状态 REST与技术无关,代表的是一种软件架构风格,REST是Representational State Transfer的简称,中文翻译为“表征状态转移” 所有的…
No affection but interests can be found in the world of animals. 在动物的世界里,只有利益,没有感情. From Animal World ( A movie in 2018) My brother, you must get up every morning with determination if you are going to go to bed with satisfication. Worring does not e…
立方体 /* 输入数据中的p的位置是没有用的,而题目本质上是求C(n,k) */ #include<iostream> #include<cstdio> #define mod 1000000007 #define maxn 1000001 using namespace std; int n,k,x; ,},inv[maxn]={,},f[maxn]={,}; long long C(long long a,long long b){ return fac[a]*inv[b]%m…