#NUM

find sum and average of n numbers

 publicclassSolution{publicstaticvoidmain(String[]args){Scannerip=newScanner(System.in);doubleinput=0;intcount=0;doublesum=0;while(input!=-1){System.out.pr...
代码星球 代码星球·2020-11-02

greatest among three numbers

 publicclassSolution{publicstaticvoidmain(String[]args){Scannerip=newScanner(System.in);System.out.print("EnterA:");inta=ip.nextInt();System.out.print("Ent...
代码星球 代码星球·2020-11-02

multiply two numbers using + opertor

 publicclassSolution{publicstaticvoidmain(String[]args){intx=11,y=7;intres=1;for(inti=1;i<=y;i++)res=i*x;System.out.println("Theproductof"+x+"and"+y+"is...

divide two numbers using + opertor

 packagetestpacknm;importjava.util.Scanner;publicclasstestcnm{publicstaticvoidmain(String[]args){intx=44,y=7;intres=-1;for(inti=0;i<=x;i+=y){res++;}Syst...

c 判断是否为 字母或数字(iswalnum example)

 #include<stdio.h>#include<wctype.h>intmain(){inti;wchar_tstr[]=L"c3p。o...";i=0;while(iswalnum(str[i])){i++;}printf("Thefirst%dcharactersarealp...

新概念英语第二册Lesson5:No wrong numbers

Lesson5Nowrongnumbers  无错号之虞  Firstlistenandthenanswerthequestion.  听录音,然后回答以下问题。  Whatdoes'Nowrongnumbers'mean?  Mr.JamesScotthasagarageinSilburyandnowhehasjus...

数字对象NSNumber的使用

先简述下关于NSNumber的信息NSNumber的存在就相当于java中的装箱与拆箱。只不过java中的装箱拆箱过程,使用的是对应的类型,比如基本数据类型是int、double类型,装箱时就得对应使用Integer、Double类型。而Objective-C中,使用的都是NSNumer类型。也因此NSNumber其实...

numpy.trace对于三维以上array的解析

numpy.trace是求shape的对角线上的元素的和,具体看 https://docs.scipy.org/doc/numpy-1.13.0/reference/generated/numpy.trace.html或者搜索numpy.trace,二维的比较好理解,对于三维以上的对角线(三维的对角线不止2条...

numexpr low version warning

runing https://colab.research.google.com/notebooks/mlcc/first_steps_with_tensor_flow.ipynb?hl=zh-cn#scrollTo=gzb10yoVrydWontheipythongnotebook /usr/lo...
代码星球 代码星球·2020-10-22

uva10392 Factoring Large Numbers

本文涉及的知识点是,使用线性筛选法得到素数表。1题目2思路3参考====================Oneofthecentralideasbehindmuchcryptographyisthatfactoringlargenumbersiscomputationallyintensive.Inthiscontex...

mysql报错"ERROR 1206 (HY000): The total number of locks exceeds the lock table size"的解决方法

1.问题背景    InnoDB是新版MySQL(v5.5及以后)默认的存储引擎,之前版本的默认引擎为MyISAM,因此,低于5.5版本的mysql配置文件.my.cnf中,关于InnoDB的配置默认是被注释起来的。在实际使用时,发现不少人只是把mysql的配置文件拷贝到需要的路...

792. Number of Matching Subsequences

  参考代码:https://leetcode.com/problems/number-of-matching-subsequences/discuss/117575/C++-12-Line-Solution-with-Explanation 思路:把每个S的字符的下标存储下来,同一个单词...

leetcode 129. Sum Root to Leaf Numbers

https://www.cnblogs.com/grandyang/p/4273700.htmlsum代表当前节点的和。这个题要从上往下的思路去做。classSolution{public:intsumNumbers(TreeNode*root){returnsumNumbers(root,0);}intsumNumb...
代码星球 代码星球·2020-10-13

leetcode 402. Remove K Digits 、321. Create Maximum Number

402.RemoveKDigitshttps://www.cnblogs.com/grandyang/p/5883736.htmlhttps://blog.csdn.net/fuxuemingzhu/article/details/81034522https://blog.csdn.net/qq508618087/ar...

leetcode 374. Guess Number Higher or Lower 、375. Guess Number Higher or Lower II

374.GuessNumberHigherorLower二分查找就好//ForwarddeclarationofguessAPI.//@paramnum,yourguess//@return-1ifmynumberislower,1ifmynumberishigher,otherwisereturn0intguess(...
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