mental arithmetic exercises

20165236 2017-2018-2 "Java programming" pair programming exercises _ arithmeticPair group: Ye Shi, Guo JintaoFirst, demand analysis:1, can randomly generate N road arithmetic topic, n by user input;2, support a variety of operators;3, can calculate the correct rate;4, can correctly handle the case of the parentheses and output the correct results of the operation.Second, design ideas:Randomly generated

operation Ken Reference;Then enter 0 to indicate that there are countless participating operations, and the results are as shownWhen the input character is not 0 or 1, the program prompts the error, requiring the user to re-enter3. Test methods and procedures with 2, the implementation results are as follows4. Multiple operations to see if there are duplicate topicsIt is not difficult to find a variety of execution and no repetition algorithm appears5. When 30 questions are selected, select the

Practice One,(1)(2)　　　　　　Answer: (1) or:1 | 0 = 1, 0 | 1 = 1, 1 | 1 = 1, 0 | 0 = 0; result = bis (x, y);(2) xor:1 | 0 = 1, 0 | 1 = 1, 0 | 0 = 0, 1 | 1 = 0; result = bis (bic (x, y), Bic (y,x));Suppose z = Bic (x, y) if one of Y's Yi is 1, then XI if 1 then Zi = 0, if XI is 0, then Zi = 0; If Yi is 0, then XI does not change, so the difference between z and x ^ y is Yi = 1, xi = 0 o'clock (x ^ y) The first bit is 1 and zi = 0; So these bits should be found: Xi = 0, Yi = 1, and these positions of

Requirements: Write a class that can be arithmetic, or can be calculated as a rectangular area 1. ProcedureViewcount.html　　　Count.class.phpprintcount.php　　　2. Results Requirements: the arithmetic and area operators into one, the main menu lets the user choose to do arithmetic or area calculation　　　 1. ProcedureViewcount1.html use a little javas

20172311 "Java Programming" course pair programming exercises _ Arithmetic first-week phase summary pair Partners Study No.: 20172307 Name: Steven Uptown Partner First week blog address: Demand analysis Functional Requirements 1. Automatic generation of topics can be used independently (able to write the function of the test class to create a separate problem) ca

Exercise request: Randomly generate 30 arithmetic questionsHere is the program code:1#include"stdafx.h"2#include"stdio.h"3#include"time.h"4#include"stdlib.h" //with machine function header file5 6 voidprint ()7 {8Srand ((int) Time (0));9 for(intI=0; i in; i++)Ten { One intx; A intA=rand ()% -; - intB=rand ()% -; - thex=1+rand ()%4;//randomly produce four different algorithms - Switch(x) - { -

) Result+=multi; if (suiji2==3) Result+=div; if (level==3) result+=fenshu3; else RESULT+=R3; if (suiji11==1suiji2!=0suiji2!=1) result+= ")"; } return result; } Main class Import Java.util.scanner;public class Calculate {public static void main (string[] args) {System.out.println ("output The number of questions you want to generate "); Scanner scan = new Scanner (system.in); int Tishu = Scan.nextint (); System.out.println ("Enter th

Analysis Demand analysis (including learning new technologies) 300 360 Coding Standard Code specification (to develop appropriate specifications for current development) 30 15 Design UML Design Project UML class diagram 60 120 Coding Specific code 2000 2400 Code Review Code review 30 40 Test Test (

For the teacher to decorate the arithmetic, the following is the results of our group (there are some deficiencies: such as can not continue to issue, and later improve):#include #include#include#include"math.h"#includevoidMain () {intA,b,c,d,e,r,i,v,an; Charch1[4]={'+','-','*','/'}; Charch2[4]={'+','-','*','/'}; for(i=0;iTen; i++) {a=rand ()% -; b=rand ()% -; C=rand ()% -; D=rand ()%4; E=rand ()%4; printf ("%d%c%d%c%d", A,ch1[d],b,ch2[e],c); printf

% Members of the group Project impressions Houzeian: This arithmetic, we do not do very well, add sub-items do not do, many times there is no time, from the beginning of the project did not plan the time of the whole project arrangements, and in the early completion of some slow. But in this project completed we also harvested a lot, including the use of stacks and the use of Stringtokenier methods, as well as the whole project planning

Estimate Estimate how long this task will take 100 100 Development Development 800 Analysis Demand analysis (including learning new technologies) 100 Coding Standard Code specification (to develop appropriate specifications for current development) 30 Design UML Design Project UML class diagram 50 C

" + (right/(wrong+right))100+ "%");}Private static Boolean add (double x,double y) {Scanner sc = new Scanner (system.in);Double num1 = sc.nextdouble ();Double result = x + y;if (NUM1 = = result) {return true;}else{return false;}}private static Boolean minus (double x,double y) {Scanner sc = new Scanner (system.in);Double num1 = sc.nextdouble ();Double result = x-y;if (NUM1 = = result) {return true;}else{return false;}}Private static Boolean times (double x,double y) {Scanner sc = new Scanner (sy

1#include 2 voidPP (intN)3 {4 if(n==0)return;5PP (n/Ten);6printf"%d", n%Ten);7 }8 voidNP (intN)9 {Ten if(n==0)return; Oneprintf"%d", n%Ten); APP (n/Ten); - } - intAd (intN) the { - if(n==0)return 0; - if(n==1)return 1; - returnAd (n1)+N; + } - intMain () + { A intN; atscanf"%d",n); -printf"%d\n", Ad (n)); - PP (n); -printf"\ n"); - NP (n); - return 0; in}PP is the positive sequence, NP is reverse order, ad is a series and.The difference between PP and NP is that, as t

voluminous. A: After the members of the reminder, I just re-read the teacher's lectures, found in the PPT gave a clear idea, so before it is to pay their own tuition bar. 2: Q: How do I prioritize an operator? A: At first I want to write a compare class that defines the precedence relationships of all operators in the class, determining the relationship between the top element and the current input operator when the suffix is turned, the output "Yes, it feels step-by-point toward the be

-consuming (minutes) Planning Plan 60 Estimate Estimate how long this task will take 3 Development Development 2000 3000 Analysis Demand analysis (including learning new technologies) 350 Coding Standard Code specification (to develop appropriate specifications for current development) 60 Design UML Design Project UML class diagram 60