Square spiral Nikola picks up a strange circuit board. All of its elements are connected in a spiral and it is possible to connect the neighboring elements vertically and horizontally. The map of the circuit consists of a series of square cells. The…

BUPT 2017 summer training (for 16) #1C 题意 A new computer scientist is trying to develop a new memory management system called "spiral memory management". The basic idea of this system is that it represents the memory as a 2D grid with a predefin…

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…

在本章中,我们将编写简短的.简单的程序来创建漂亮的.复杂的视觉效果.为了做到这一点,我们可以使用海龟作图软件.在海龟作图中,我们可以编写指令让一个虚拟的(想象中的)海龟在屏幕上来回移动.这个海龟带着一只钢笔,我们可以让海龟无论移动到哪都使用这只钢笔来绘制线条.通过编写代码,以各种很酷的模式移动海龟,我们可以绘制出令人惊奇的图片. 使用海龟作图,我们不仅能够只用几行代码就创建出令人印象深刻的视觉效果,而且还可以跟随海龟看看每行代码如何影响到它的移动.这能够帮助我们理解代码的逻辑. 第一个海龟程序…

A (By ggg): 题意:一个人还有x秒到红绿灯,这个红绿灯有g秒绿灯,y秒黄 灯,r秒红灯,问你到红绿灯的时候是什么灯.值得注意的是绿 灯变黄灯时,第g秒是黄灯了. B (By Anxdada): Gym - 100947B C(By Kresnt): 显然,当 n 时偶数的时候,只有 2 种取法(取下标为奇数的,或是取下标为偶数的) 当 n 为奇数时,按照隔一取一的方式遍历序列 Seq A:1 5 3 2 4 遍历为 Seq B:1 3 4 5 2 然后问题就变成了从 *B* 序列中取…

https://pyautogui.readthedocs.io/en/latest/introduction.html Introduction Purpose The purpose of PyAutoGUI is to provide a cross-platform Python module for GUI automation for human beings. The API is designed to be as simple as possible with sensible…

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…

Spiral Matrix II 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 ] ]   与Spiral Matrix类似:   class So…

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 ] ] 思路: 我是直接套用了Spiral Matrix 的代码 class Solution { p…

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 ] ] class Solution { public: vector<vector<int>…