Print numbers from 1 to the largest number with N digits by recursion. Notice It's pretty easy to do recursion like: recursion(i) { if i > largest number: return results.add(i) recursion(i + 1) } however this cost a lot of recursion memory as the rec…

Yet Another Source Code for LintCode Current Status : 232AC / 289ALL in Language C++, Up to date (2016-02-10) For more problems and solutions, you can see my LintCode repository. I'll keep updating for full summary and better solutions. See cnblogs t…

[本文链接] http://www.cnblogs.com/hellogiser/p/print-matrix-in-clockwise-direction.html [题目] 输入一个矩阵,按照从外向里以顺时针的顺序依次打印出每一个数字. 例如:如果输入如下矩阵: 1            2            3            4 5            6            7            8 9            10          11       …

[题目] 输入数字n,按顺序输出从1最大的n位10进制数.比如输入3,则输出1.2.3一直到最大的3位数即999. [分析] 这是一道很有意思的题目.看起来很简单,其实里面却有不少的玄机. [常规思路] 应聘者在解决这个问题的时候,最容易想到的方法是先求出最大的n位数是什么,然后用一个循环从1开始逐个输出.很快,我们就能写出如下代码:  C++ Code  1234567891011121314   // Print numbers from 1 to the maximum number wi…

Sieve of Eratosthenes (素数筛选算法) Given a number n, print all primes smaller than or equal to n. It is also given that n is a small number. For example, if n is 10, the output should be “2, 3, 5, 7″. If n is 20, the output should be “2, 3, 5, 7, 11, 13,…

★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★★➤微信公众号:山青咏芝(shanqingyongzhi)➤博客园地址:山青咏芝(https://www.cnblogs.com/strengthen/)➤GitHub地址:https://github.com/strengthen/LeetCode➤原文地址:https://www.cnblogs.com/strengthen/p/10305789.html ➤如果链接不是山青咏芝的博客园地址,则可能是爬取作者的文章…

1.1.1 private static void exercise111() { StdOut.println("1.1.1:"); StdOut.println((0+15)/2); StdOut.println(2.0e-6 * 100000000.1); StdOut.println(true && false || true && true); StdOut.println(); } 1.1.2 private static void exer…

6 小时 Python 入门 以下操作均在 Windows 环境下进行操作,先说明一下哈 一.安装 Python 1.官网下载 Python 进入官网(https://www.python.org),点击 Downloads,选择要下载的版本: 2.安装 Python 安装时注意下图勾选部分一定要勾选: 二.安装代码编辑器 PyCharm 1.官网下载 PyCharm 进入官网(https://www.jetbrains.com/pycharm),点击 Downloads,选择要下载的版本: 2…

传送门 Description Vladik and Chloe decided to determine who of them is better at math. Vladik claimed that for any positive integer n he can represent fraction   as a sum of three distinct positive fractions in form . Help Vladik with that, i.e for a g…

C. Vladik and fractions time limit per test 1 second memory limit per test 256 megabytes input standard input output standard output Vladik and Chloe decided to determine who of them is better at math. Vladik claimed that for any positive integer n h…