Elementary school student second Grade Arithmetic 2.0

On the basis of the original, want to add the score of arithmetic.

This program realizes the function: 30 arithmetic problem writing (not repeating)

Supports integral type arithmetic and fractional arithmetic

Can make a number of quiz

1//Start programming Time: 15:18 2//End Programming Time: 16:42 3 #include <iostream> 4 #include <time.h> 5 #include <stdlib.h> 6 usin G namespaceStd 7 #define MAX 8 #define N 9 intMain () 10{One srand (time (NULL)); seed12 intnum1,num2,num3,num4;13 inti,j,m;14 Char ysf[4]={' + ', '-', ' * ', '/'};15 for (m=0;m<n;m++) 16{J=rand ()%2;//Generate 0 or 118 if (j==0)//integer arithmetic 19{I=rand ()%4;//Generate 0-3 random number of Num1=rand ()% Max;//Generate 0-max-1 random number of num2=rand ()%max;23 switch(i) {case 0://integer added cout<<num1<<ysf[i]<<num2<< "=" <<Endl;26 break; Case 1://Integer subtraction cout<<num1<<ysf[i]<<num2<< "=" <<endl;29 break; case 2://integer multiplied by cout<<num1<<ysf[i]<<num2<< "=" <<Endl;32 break, Case 3://integer divide num2==0) 35 {//Divisor not 036 num2=rand ()%Max;; 37}38 cout<<num1<<ysf[i]<<num2<< "=" <<endl;39 break;: Break;} 42}43 else if (j==1)//score Arithmetic 44{I=rand ()%4; Num1=rand ()%max;47 Num2=rand ()%max;48 while (num2==0| | NUM1&GT;=NUM2) {//fractional denominator not 0 and numerator cannot be greater than denominator num1=rand ()%Max;50 Num2=rand ()%Max;51}52 Num3=rand ()%max;53 Num4=rand ()%max;54 while (num4==0| | NUM3&GT;=NUM4) {//fractional denominator not 0 and numerator cannot be greater than denominator num3=rand ()%max;56 Num4=rand ()%max;57}58 switch(i) {cout<<num1<< case 0://score added to "/" <<num2<<ysf[i]<<num3<< "/" <<num4< < "=" <<endl;61 break; 1://Fractional subtraction cout<<num1<< "/" <<num2<<ysf[i]<<num3<< "/" <<num4<< "=" <<endl;64 break; 2://fractions multiplied by cout<< "(" <<num1<< "/" <<num2<< ")" <<ysf[i]<< "(" <<num3<< "/" <<num4<< ")" << "=" < <endl;67 break; 3://fractions divided by a while (num3==0) {//the fraction of the denominator is not 070 num3=rand ()% max;71 while (num3>= num4) {Num3=rand ()% max;73 num4=rand ()% max;74}75 }76 cout<< "(" <<num1<< "/" <<n um2<< ")" <<ysf[i]<< "(" <<num3<< "/" <<num4<< ")" << "=" <<  endl;77 break; default: }81 }82 }83} /c12> 

The program runs as follows:

Elementary school student second Grade Arithmetic 2.0