Growing Rectangular Spiral 题目描述 A growing rectangular spiral is a connected sequence of straightline segments starting at the origin. The fi rst segment goes right (positive x direction). The next segment goes up (positive y direction). The next segm…

1224. Spiral Time limit: 1.0 second Memory limit: 64 MB A brand new sapper robot is able to neutralize mines in a rectangular region having integer height and width (N and M respectively). Before the robot begins its work it is placed near the top le…

Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example,Given the following matrix: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] You should return [1,2,3,6,9,8,7,4,5]. 这道题让我们将一个矩阵按照螺旋顺序打印出来,我们…

Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example,Given the following matrix: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] You should return [1,2,3,6,9,8,7,4,5]. 思路:就按照螺旋矩阵的规律 用n记录旋转圈数 每…

10893 Spiral 时间限制:1000MS  内存限制:65535K 题型: 编程题   语言: 无限制 Description Given an odd number n, we can arrange integers from 1 to n*n in the shape of a spiral. The figure 2.4.1 below illustrates the spiral made by integers from 1 to 25. [图片] 21 22 23 24 2…

Gridland Time Limit: 2 Seconds      Memory Limit: 65536 KB BackgroundFor years, computer scientists have been trying to find efficient solutions to different computing problems. For some of them efficient algorithms are already available, these are t…

Difficulty: Medium Problem On a 2 dimensional grid with R rows and C columns, we start at (r0, c0) facing east. Here, the north-west corner of the grid is at the first row and column, and the south-east corner of the grid is at the last row and colum…

题目要求 Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example, Given the following matrix: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] You should return [1,2,3,6,9,8,7,4,5]. 分析 举个例子自己从头到尾把数字列出…

1105 Spiral Matrix(25 分) This time your job is to fill a sequence of N positive integers into a spiral matrix in non-increasing order. A spiral matrix is filled in from the first element at the upper-left corner, then move in a clockwise spiral. The…

题目要求 Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example,Given the following matrix: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] You should return [1,2,3,6,9,8,7,4,5]. 分析 举个例子自己从头到尾把数字列出来…

1. Group Anagrams Given an array of strings, group anagrams together. For example, given: ["eat", "tea", "tan", "ate", "nat", "bat"], [ ["ate", "eat","tea"], ["…

Given an integer n, generate a square matrix filled with elements from 1 to n 2 in spiral order. For example,Given n =3, You should return the following matrix: [ [ 1, 2, 3 ], [ 8, 9, 4 ], [ 7, 6, 5 ] ] 题意:给定整数n,以螺旋的方式形成一个n×n个矩阵. 思路:这题的思路和spiral matr…

Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example,Given the following matrix: [ [ , , ], [ , , ], [ , , ] ] You should return [1,2,3,6,9,8,7,4,5]. 思路:规律:当我们沿水平方向走完一次(比如从左往右),则下一次水平方向(…

Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example,Given the following matrix: [ [ , , ], [ , , ], [ , , ] ] You should return [1,2,3,6,9,8,7,4,5]. 题解:还是找规律的题:设有四个变量Xs,Xe,Ys,Ye,如下图所示,它…

Contest02-4 Spiral Time Limit: 1000ms   Memory limit: 65536K  有疑问?点这里^_^ 题目描述 Given an odd number n, we can arrange integers from 1 to n*n in the shape of a spiral. The Figure 1 below illustrates the spiral made by integers from 1 to 25. As we see ab…

Starting with 1 and spiralling anticlockwise in the following way, a square spiral with side length 7 is formed. 37 36 35 34 33 32 31 38 17 16 15 14 13 30 39 18  5  4  3 12 29 40 19  6  1  2 11 28 41 20  7  8  9 10 27 42 21 22 23 24 25 26 43 44 45 46…

Starting with the number 1 and moving to the right in a clockwise direction a 5 by 5 spiral is formed as follows: 21 22 23 24 25 20  7  8  9 10 19  6  1  2 11 18  5  4  3 12 17 16 15 14 13 It can be verified that the sum of the numbers on the diagona…

[LeetCode] 虽然感觉spiral matrix 两道题和 zigzag conversion 那道题没有太多联系,但是,毕竟都是相当于数学上的找规律题目. 这种优雅的题目就应该用下面这种优雅的代码写法. 054 Spiral Matrix /* Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example, Give…

题目链接:https://leetcode.com/problems/spiral-matrix/description/ Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. Example 1: Input: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] Output: [1,2,3,6,9,8,7,…

March 16, 2016 Problem statement:Given a 2D array (matrix) named M, print all items of M in a spiral order, clockwise.For example: M  =  1   2   3   4   5       6   7   8   9  10      11  12  13  14  15      16  17  18  19  20 The clockwise spiral pr…

Happy 2004 题意:s为2004^x的因子和,求s%29.     (题于文末) 知识点: 素因子分解:n = p1 ^ e1 * p2 ^ e2 *..........*pn ^ en 因子和:    Sum=(p1^0+p1^1-.p1^e1)*(p2^0+p2^1-p2^e2)--(pn^0+-pn^en) =; 积性函数:s(xy)=s(x)*s(y)    (比如:幂函数,因子和,欧拉函数,莫比乌斯函数) 对于正整数n的一个算术函数 f(n),若f(1)=1,且当a,b互质时f…

Given an integer n, generate a square matrix filled with elements from 1 to n2 in spiral order. For example,Given n = 3, You should return the following matrix: [ [ 1, 2, 3 ], [ 8, 9, 4 ], [ 7, 6, 5 ] ] 此题跟之前那道Spiral Matrix 螺旋矩阵 本质上没什么区别,就相当于个类似逆运算的过…

传送门 Description Chloe, the same as Vladik, is a competitive programmer. She didn't have any problems to get to the olympiad like Vladik, but she was confused by the task proposed on the olympiad. Let's consider the following algorithm of generating a…

//POJ3377 //DP解法-解有规律的最短路问题 //Time:1157Ms Memory:12440K #include<iostream> #include<cstring> #include<cstdio> using namespace std; #define MAXN 1000005 typedef long long LL; int n; int dp[MAXN][3]; int sr, st, er, ed; int main() { //freo…

A Simple Nim Problem Description   Two players take turns picking candies from n heaps,the player who picks the last one will win the game.On each turn they can pick any number of candies which come from the same heap(picking no candy is not allowed)…

题目概要: Given a matrix of m x n elements (m rows, n columns), return all elements of the matrix in spiral order. For example, Given the following matrix: [ [ 1, 2, 3 ], [ 4, 5, 6 ], [ 7, 8, 9 ] ] You should return [1,2,3,6,9,8,7,4,5]. 解题思路: 这个题的关键在于指针的…

--利用sqlserver来运算斐波那契规律 --利用事物与存储过程 declare @number intdeclare @A intdeclare @B intdeclare @C int set @A=1 set @B=2 set @Number=3 select @C=@A+@B while(@Number<60) begin    set @C=@A+@B  if(@@ERROR<>0)  goto errorhandler  print N'第'+convert(varcha…

黑莓末路 昨晚听FM里谈到了RIM这家公司,有分析师认为它需要很悲催的裁员90%,才能保证活下去.这是一个意料之中,但又有点兔死狐悲的消息.可能在不久的将来,RIM这家公司就会走到尽头,或被收购,或申请破产保护. RIM的黑莓手机以在911事件中仍然能够保持通信而名声大振,在此后美国政府与很多商务人士都采购了黑莓手机,由此黑莓把重点放在了安全性上.很遗憾的是,成也萧何败也萧何,黑莓从此以后错误的判断了智能手机的未来,一直死盯着安全与商务功能不放,最终走到了今天的地步. RIM的问题很多,比如在软…

Math.abs(~2018) 某前端群的入门问题长姿势了,一个简单的入门问题却引发了我的思考,深深的体会到自己在学习前端技术的同时忽略遗忘了一些计算机的基础知识. 对于 JS Math对象没什么可说的, Math.abs(x)指的是返回一个数的绝对值,而解题关键在“~2018”,乍一看,这是什么意思,不会是“-2018”符号打错了吧?细思一下才恍然大悟,这是取反操作符,故取相反数得结果为-2018,Math.abs(-2018) 即2018,大功告成!可是,输入进去发现,What!错误!Why…

COM中需要调用AddRef和Release的10条规律  …