Home Backend Development PHP Tutorial 今天遇到的一份面试题

今天遇到的一份面试题

Jun 13, 2016 am 10:10 AM
ar gt html lt while

今天遇到的一份面试题,求高手指教
题目要求是写一个函数,输入一个数字n,然后函数就输出一个n行n列的数阵,数阵样式举例如下:

n=3
-------------------
1 2 3
8 9 4
7 6 5

n=4
-------------------
1 2 3 4
12 13 14 5
11 16 15 6
10 9 8 7

n=5
-------------------
1 2 3 4 5
16 17 18 19 6
15 24 25 20 7
14 23 22 21 8
13 12 11 10 9

嗯,大致就是这么着,绕着圈子排序


→→→→┐
┌→→┐↓
↑┌→↓↓
↑└←┘↓
└←←←┘

-------------------
有木有高手做出来? 0.0

------解决方案--------------------

PHP code
function Circle($n) {  $k = $n % 2;  $ar = array();  for($i=0; $i= $m) $ar[$y][$x--] = $p++;    $x++;    $y--;    $m++;    while($y >= $m) $ar[$y--][$x] = $p++;    $n--;  }  if($k) $ar[$y+1][$x+1] = $p;  $r = '
Copy after login
'; foreach($ar as $v) $r .= ''; return $r.'
' . join(' ', $v) . '
'; }for($i=2;$i'; } ?>
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn

Hot AI Tools

Undresser.AI Undress

Undresser.AI Undress

AI-powered app for creating realistic nude photos

AI Clothes Remover

AI Clothes Remover

Online AI tool for removing clothes from photos.

Undress AI Tool

Undress AI Tool

Undress images for free

Clothoff.io

Clothoff.io

AI clothes remover

AI Hentai Generator

AI Hentai Generator

Generate AI Hentai for free.

Hot Article

Repo: How To Revive Teammates
1 months ago By 尊渡假赌尊渡假赌尊渡假赌
R.E.P.O. Energy Crystals Explained and What They Do (Yellow Crystal)
2 weeks ago By 尊渡假赌尊渡假赌尊渡假赌
Hello Kitty Island Adventure: How To Get Giant Seeds
1 months ago By 尊渡假赌尊渡假赌尊渡假赌

Hot Tools

Notepad++7.3.1

Notepad++7.3.1

Easy-to-use and free code editor

SublimeText3 Chinese version

SublimeText3 Chinese version

Chinese version, very easy to use

Zend Studio 13.0.1

Zend Studio 13.0.1

Powerful PHP integrated development environment

Dreamweaver CS6

Dreamweaver CS6

Visual web development tools

SublimeText3 Mac version

SublimeText3 Mac version

God-level code editing software (SublimeText3)

Table Border in HTML Table Border in HTML Sep 04, 2024 pm 04:49 PM

Guide to Table Border in HTML. Here we discuss multiple ways for defining table-border with examples of the Table Border in HTML.

Nested Table in HTML Nested Table in HTML Sep 04, 2024 pm 04:49 PM

This is a guide to Nested Table in HTML. Here we discuss how to create a table within the table along with the respective examples.

HTML margin-left HTML margin-left Sep 04, 2024 pm 04:48 PM

Guide to HTML margin-left. Here we discuss a brief overview on HTML margin-left and its Examples along with its Code Implementation.

HTML Table Layout HTML Table Layout Sep 04, 2024 pm 04:54 PM

Guide to HTML Table Layout. Here we discuss the Values of HTML Table Layout along with the examples and outputs n detail.

NTT QONOQ Devices unveils Mirza wireless XR glasses for smartphones NTT QONOQ Devices unveils Mirza wireless XR glasses for smartphones Sep 09, 2024 pm 06:30 PM

NTT QONOQ Devices has unveiled the Mirza wireless XR glasses for smartphones, freeing users from needing to wrangle cords. The glasses can display virtual AR content in real-world spaces like Pokemon Go or their phone content on a large virtual displ

HTML Ordered List HTML Ordered List Sep 04, 2024 pm 04:43 PM

Guide to the HTML Ordered List. Here we also discuss introduction of HTML Ordered list and types along with their example respectively

How do you parse and process HTML/XML in PHP? How do you parse and process HTML/XML in PHP? Feb 07, 2025 am 11:57 AM

This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

Moving Text in HTML Moving Text in HTML Sep 04, 2024 pm 04:45 PM

Guide to Moving Text in HTML. Here we discuss an introduction, how marquee tag work with syntax and examples to implement.

See all articles