precalculus exercises

Two small exercises about TCP _ The first blog ~, First blog of tcp exercises First, a local client sends a request, and the server receives the simple code of the request. 1 package com. TCP. java; 2 3 import java. io. IOException; 4 import java. io. inputStream; 5 import java. io. outputStream; 6 import java.net. inetAddress; 7 import java.net. serverSocket; 8 import java.net. socket; 9 import org. junit.

Java programming Chapter 1 and Chapter 4 programming exercises and java programming exercises 3.1 public class test { public static void main(String[] args) { System.out.println("Enter a, b, c: "); Scanner input = new Scanner(System.in); double a = input.nextDouble(); double b = input.nextDouble(); double c = input.nextDouble(); double delta = b * b - 4 * a * c;

Source code of Java-based typing exercises and java-based typing exercises The Code is as follows: Import java. applet. applet; import java. applet. audioClip; import java. awt. dimension; import java. awt. font; import java. awt. toolkit; import javax. swing. JFrame; import javax. swing. JPanel; import java. awt. rectangle; import javax. swing. borderFactory; import javax. swing. JButton; import javax. swi

Python exercises (1) and Python exercises ( Return all positive integers ranging from 1 to 10 except 7] start = 1while True: if start ==7: start += 1 continue print(start) if start ==10: break start +=1 [Calculate the sum of all integers within 1] sum = 0start = 1while True: print(start ) sum = sum+start if start == 100 break start += 1 [Outpu

Summary exercises with simple SQL statements and summary exercises with SQL statements Create a table to record employee personal information: -- Create a table create table plspl_company_info (empno number (5) not null, ename varchar2 (10) not null, job varchar2 (10), manager number (5), hiredate date, sal number (5), comm number (5), deptno number (3); insert into plspl_company_info values (7369, 'Smith

Exercises for C ++ Primer version 4 and exercises 1.6 Note: This essay is directly copied in C ++ Primer (Fourth Edition) exercise solution (full version. This is mainly for me to read it again and again later. Exercise 1.6 Explain the following sections: 1 std: cout Is this code legal? If it is legal, why, if it is illegal, why? [Answer] This code is invalid. Note that there are semicolons at the

Object-oriented (abstract class exercises) and object-oriented abstract class exercises /*** Created by rabbit on 2014-07-21. blogpark. Liu pengcheng* If we need to model employees when developing a system,* An employee has three attributes: name, employee ID, and salary. The manager is also an employee* In addition to employee attributes, there is also a bonus attribute.* Use inheritance to design e

SQL connection (3) -- exercise exercises and SQL exercises -- 1. Fill in the following query (mark with SELECT e. emp_id, e. fname, e. lname, B. 'name' FROM employee e inner join -- 2. write a query and return the account ID (customer. cust_type = 'I), the customer's federated Personal Identification Number (customer. fed_id) and the name of the product (product. name ).SELECT c. fed_id, p. 'name' FROM cus

Python learning-stage comprehensive exercises 3. python Comprehensive ExercisesPython learning-comprehensive phase Exercise 3 Based on the previous class learning, do the following example exercises: operations that contain folders and files (do not read the code first, and try to write it first. The code is for reference only and there are multiple implementation methods) 1. directory file traversal (L2 d

Several web Front-end exercises and several web exercises Which of the following attributes is not a common attribute in HTML?A] B] C] D] Online exercise: http://hovertree.com/tiku/bjaf/qi1g37nf.htm In CSS style definition, which of the following RGB color values is Web security color?A] #111111B] #222222C] #333333D] #444444 Http://hovertree.com/tiku/bjaf/72jaf1n0.htm: Which of the following HTML stateme

title Source: Cattle and Guest Networkfor a string, design an algorithm that will have the length of the stringLenthe prefix is translated to the end of the string.given a stringAand its length, given at the same timeLen, please return the translated string.Test Examples:"ABCDE", 5,3return:"DEABC"Python implementationCodedef forwardmove (alist): #平移一个单位 first = alist[0] for i in Xrange (Len (alist)-1): alist[i] = alist[i+1] A List[-1] = FirstClass translation:def stringtranslation (self, A, N, L

1, please use the code to achieve: the use of an underscore each element of the list is stitched into a string, Li = [' Alex ', ' Eric ', ' Rain ']#!/usr/bin/env python#-*-Coding:utf-8-*-Li = [' Alex ', ' Eric ', ' Rain ']v = ' _ '. Join (LI)Print (v)2. Find the elements in the list, remove the spaces for each element, and look for all elements that begin with a or a and end with C.Li = ["Alec", "Aric", "Alex", "Tony", "Rain"]Tu = ("Alec", "Aric", "Alex", "Tony", "Rain")DiC = {' K1 ': ' Alex ',

f[0][n-1]~f[n-1][n-1] minimum value the for(intI =1;i){ - for(intj=0;j){ - if(j==0) -F[i%2][J]=f[(i-1)%2][j]+Triangle.get (i). get (j); + Else -F[i%2][J]=math.min (f[(i-1)%2][J],f[(i-1)%2][J-1]) +Triangle.get (i). get (j); + } A } at intmin=Integer.max_value; - for(intI =0;i){ - if(f[(n-1)%2][i]min) -Min=f[(n-1)%2 ][i]; - } - returnmin; in } -}If the final optimal path pass

Tags: style blog http IO SP strong data on 2014Subquery Practice One: Find out all information about people older than 35 years in the sales departmentExercise two: Convert all numeric codes from a department in a haha table to a string display in a bumen tableExercise three: Convert all the number codes from the Department in the haha table to the string display in the Bumen table, and show each person's supervisorConnection query: You can implement multiple table queries by using the Join oper

JQuery small exercises and JQuery exercises1. Addition calculator. Enter a number in the two text boxes and click "=" to put the result of the addition in the third text box.

C ++ special exercises-(2) and c special exercisesCollation C ++ basic special exercise 2, the level is still not home!Incorrect question analysis and summary 1. The following template definitions are available: template In the following calls to fun, the error is ()A. fun (1, 2)B. fun (1.0, 2)C. fun (2.0, 1.0)D. fun (1, 2.0) Analysis: this is a question of the C ++ template. The calling of the template function mainly requires that the type of retur

hours. They send students home to carefully record their time distribution. After obtaining sufficient data, the researchers began to try to answer an important question: why are elite players better than normal players? One obvious guess is that the elite performers work harder than normal performers. That is to say, they are willing to perform the necessary long-term strict exercises (tiger mom-style hours) to become excellent, while normal play

After-school exercises the third wave came, to the third chapter after the code and the like a little bit longer, so I put this chapter of the answer into a few parts. This chapter focuses on the processing of strings, for string problems, usually as long as careful there is no problem, the following few said directly on the detailed.Exercise 3-1 Score Statistics (STAT)Task 1: This is straightforward on the code:#include Task 2: This relative task 1 m

Topic有一个整形数组A，请设计一个复杂度为O(n)的算法，算出排序后相邻两数的最大差值。给定一个int数组A和A的大小n，请返回最大的差值。保证数组元素多于1个。测试样例：[1,2,5,4,6],5返回：2Analytical:The 20th section adjacent to the maximum difference between the two exercises//based on the idea of sorting the bucket, regardless of the difference between the two same bucket, only consider the minimum value of the bucket minus the maximum value of the previous bucket, the largest is the maximum value. Class Gap {public:int maxgap (vec

In Introduction to algorithms, how long does it take to finish all the above exercises? What kind of level will it take? In Introduction to algorithms, how long does it take to finish all the above exercises? What kind of level will it take? Reply content: In Introduction to algorithms, how long does it take to finish all the above exercises? What kind of level