#pragma once
#include <string>
#include <iostream>using namespace std;
class operation
{
public:int a0[1000],b0[1000],c0[1000],a1[1000],b1[1000],c1[1000],a2[1000],b2[1000],c2[1000],a3[1000],b3[1000],c3[1000],C[1000],a,b,c;int i,j,A0,A1,A2,A3,B0,B1,B2,B3;int num,line,k;int min,max,m;int CC,FS,YS,KH;void xuanze();//选择void suiji();//随机void yunsuan();//运算operation(void);~operation(void);
};

#include "operation.h"operation::operation(void)
{
}operation::~operation(void)
{
}
void operation::xuanze()
{k=0;A0=0;A1=0;A2=0;A3=0;B0=0;B1=0;B2=0;B3=0;cout<<"四则运算"<<endl;cout<<"请依次输入输出算式数量和每行显示数量："<<endl;cin>>num>>line;cout<<"请问是否要有乘除法？有请输入<1>，无请输入<0>"<<endl;cin>>CC;while(1)                            {if(CC != 1&&CC != 0){cout<<"输入不合法，请重新输入<1>或<0>";cin>>CC;}elsebreak;}cout<<"请问是否要加减结果有负数？有请输入<1>，无请输入<0>"<<endl;cin>>FS;while(1)                             {if(FS != 1&&FS != 0){cout<<"输入不合法，请重新输入<1>或<0>：";cin>>FS;}elsebreak;}cout<<"请问是否要除法结果有余数？有请输入<1>，无请输入<0>"<<endl;cin>>YS;while(1)                             //判断输入是否合法{if(YS != 1&&YS != 0){cout<<"输入不合法，请重新输入<1>或<0>";cin>>YS;}elsebreak;}cout<<"请输入两个值确定算式中a,b的取值范围："<<endl;cin>>min>>max;while(1)                            //判断输入是否合法{if(min>=max){cout<<"请保证前一个值小于后一个值，请重新输入：";cin>>min>>max;}elsebreak;}cout<<"请问是否要加括号数？无请输入<1>，有请输入<0>"<<endl;cin>>KH;while(1)                             {if(KH != 1&&KH != 0){cout<<"输入不合法，请重新输入<1>或<0>：";cin>>FS;}elsebreak;}
}void operation::suiji()
{m=max-min+1;for(i=0;i<1000;i++){a0[i]=0;b0[i]=0;a1[i]=0;b1[i]=0;a2[i]=0;b2[i]=0;a3[i]=0;b3[i]=0;}for(i=0;;i++){a=min+rand()%m;b=min+rand()%m;c=rand()%4;if(CC==0)              {if(c==2||c==3)continue;}if(FS==0)              {if(c==0){if(a+b<0)continue;}else if(c==1){if(a-b<0)continue;}}if(YS==0)            {if(c==3)if(0 != a%b)continue;}if(c==0)                {for(j=0;j<=A0;j++){if(a==a0[j]&&b==b0[j]){B0++;break;}}if(B0>0){B0=0;continue;}else{a0[A0]=a;b0[A0]=b;c0[A0]=a+b;A0++;}}else if(c==1)                   {for(j=0;j<=A1;j++){if(a==a1[j]&&b==b1[j]){B1++;break;}}if(B1>0){B1=0;continue;}else{a1[A1]=a;b1[A1]=b;c1[A1]=a+b;A1++;}}else if(c==2)                     {for(j=0;j<=A2;j++){if(a==a2[j]&&b==b2[j]){B2++;break;}}if(B2>0){B2=0;continue;}else{a2[A2]=a;b2[A2]=b;c2[A2]=a+b;A2++;}}else                               {if(b==0)continue;for(j=0;j<=A3;j++){if(a==a3[j]&&b==b3[j]){B3++;break;}}if(B3>0){B3=0;continue;}else{a3[A3]=a;b3[A3]=b;c3[A3]=a+b;A3++;}}if(num==A0+A1+A2+A3)              break;}}void operation::yunsuan(){for(i=0;i<A0;i++)                       {k++;if(a0[i]<0)cout<<"("<<a0[i]<<")";elsecout<<a0[i]<<" ";cout<<"+";if(b0[i]<0)cout<<"("<<b0[i]<<")";elsecout<<" "<<b0[i]<<" ";cout<<"=";if(k%line==0)cout<<endl;elsecout<<"\t";for(j=0;j<i;j++)//判断是否有重复{if(b2[j]==b2[i],b3[j]==b3[i]){i=i-1;suiji();break;}}for(i=0;i<A1;i++)                       {k++;if(a1[i]<0)cout<<"("<<a1[i]<<")";elsecout<<a1[i]<<" ";cout<<"-";if(b1[i]<0)cout<<"("<<b1[i]<<")";elsecout<<" "<<b1[i]<<" ";cout<<"=";if(k%line==0)cout<<endl;elsecout<<"\t";for(j=0;j<i;j++)//判断是否有重复{if(b2[j]==b2[i],b3[j]==b3[i]){i=i-1;suiji();break;}}for(i=0;i<A2;i++)                       {k++;if(a2[i]<0)cout<<"("<<a2[i]<<")";elsecout<<a2[i]<<" ";cout<<"*";if(b2[i]<0)cout<<"("<<b2[i]<<")";elsecout<<" "<<b2[i]<<" ";cout<<"=";if(k%line==0)cout<<endl;elsecout<<"\t";for(j=0;j<i;j++)//判断是否有重复{if(b2[j]==b2[i],b3[j]==b3[i]){i=i-1;suiji();break;}}for(i=0;i<A3;i++)                        {k++;if(a3[i]<0)cout<<"("<<a3[i]<<")";elsecout<<a3[i]<<" ";cout<<"/";if(b3[i]<0)cout<<"("<<b3[i]<<")";elsecout<<" "<<b3[i]<<" ";cout<<"=";if(k%line==0)cout<<endl;elsecout<<"\t";for(j=0;j<i;j++)//判断是否有重复{if(b2[j]==b2[i],b3[j]==b3[i]){i=i-1;suiji();break;}}}}

#include"operation.h"
#include<iostream>
void main()
{operation C21;C21.xuanze();C21.suiji();C21.yunsuan();
}