计算与软件工程作业二

作业要求:https://edu.cnblogs.com/campus/jssf/infor_computation17-31/homework/10402

作业1

四则运算

代码

#include<iostream>
#include<time.h>
using namespace std;
void main()
{
    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;
    k=0;
    A0=0;A1=0;A2=0;A3=0;
    B0=0;B1=0;B2=0;B3=0;
    cout<<"*************小学生四则运算*************"<<endl;
    int count=0 ;
    srand(time(NULL));//用系统当前时间设置rand()随机序列种子,保证每次运行随机序列不一样
    char ch;
    while(count<30)
    {
    cout<<"选择年级一、二、三、四、五年级分别对应(1,2,3,4,5)"<<endl;
    cin>>ch;
    if(ch=='1') 
    {cout<<"欢迎进入一年级四则运算:"<<endl;
       break;
        }
    if(ch=='2')
       {
        cout<<"欢迎进入二年级四则运算:"<<endl;
           break;
        }
      if(ch=='3')
        {
        cout<<"欢迎进入三年级四则运算:"<<endl;
           break;
        }
    if(ch=='4')
        {
            cout<<"欢迎进入四年级四则运算:"<<endl;
            break;
    }              
    if(ch=='5')
    {
        cout<<"欢迎进入五年级四则运算:"<<endl;
                     break;
                  }
}
    
    cout<<"请依次输入输出算式数量,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)                             //判断输入是否合法
    {
        if(CC != 1&&CC != 0)
        {
            cout<<"输入不合法,请重新输入\"1\"或\"0\":";
            cin>>CC;
        }
        else
            break;
    }
    
    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)                             //判断输入是否合法
    {
        if(FS != 1&&FS != 0)
        {
            cout<<"输入不合法,请重新输入\"1\"或\"0\":";
            cin>>FS;
        }
        else
            break;
    }
    
    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;
        }
        else
            break;
    }

    cout<<"请输入两个值确定算式中a,b的取值范围(请保证前一个值小于后一个值):"<<endl;
    cin>>min>>max;
    while(1)                            //判断输入是否合法
    {
        if(min>=max)
        {
            cout<<"输入不合法,请重新输入:";
            cin>>min>>max;
        }
        else
            break;
    }

    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)              //如果CC=0,去除c=2,3的情况
        {
            if(c==2||c==3)
                continue;
        }
        if(FS==0)              //如果FS=0,去除c=0,1下结果小于0的情况
        {
            if(c==0)
            {
                if(a+b<0)
                    continue;
            }
            else if(c==1)
            {
                if(a-b<0)
                    continue;
            }
        }
        if(YS==0)             //如果YS=0,且是除法,去除a,b相除有余数的情况
        {
            if(c==3)
                if(0 != a%b)
                    continue;
        }
        
        //将算式分为加、减、乘、除四组
        if(c==0)                       //加法
        {
            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)                   //减法
        {
            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)                     //乘法
        {
            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                               //除法
        {
            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)                //限制算式数量
            break;
    }
    //输出
    for(i=0;i<A0;i++)                        // +
    {
        k++;
        if(a0[i]<0)
            cout<<"("<<a0[i]<<")";
        else
            cout<<a0[i]<<" ";
        cout<<"+";
        if(b0[i]<0)
            cout<<"("<<b0[i]<<")";
        else
            cout<<" "<<b0[i]<<" ";
        cout<<"=";
        if(k%line==0)
            cout<<endl;
        else
            cout<<"\t";
    }
    for(i=0;i<A1;i++)                         // -
    {
        k++;
        if(a1[i]<0)
            cout<<"("<<a1[i]<<")";
        else
            cout<<a1[i]<<" ";
        cout<<"-";
        if(b1[i]<0)
            cout<<"("<<b1[i]<<")";
        else
            cout<<" "<<b1[i]<<" ";
        cout<<"=";
        if(k%line==0)
            cout<<endl;
        else
            cout<<"\t";
    }
    for(i=0;i<A2;i++)                         // *
    {
        k++;
        if(a2[i]<0)
            cout<<"("<<a2[i]<<")";
        else
            cout<<a2[i]<<" ";
        cout<<"*";
        if(b2[i]<0)
            cout<<"("<<b2[i]<<")";
        else
            cout<<" "<<b2[i]<<" ";
        cout<<"=";
        if(k%line==0)
            cout<<endl;
        else
            cout<<"\t";
    }
    for(i=0;i<A3;i++)                          // /
    {
        k++;
        if(a3[i]<0)
            cout<<"("<<a3[i]<<")";
        else
            cout<<a3[i]<<" ";
        cout<<"/";
        if(b3[i]<0)
            cout<<"("<<b3[i]<<")";
        else
            cout<<" "<<b3[i]<<" ";
        cout<<"=";
        if(k%line==0)
            cout<<endl;
        else
            cout<<"\t";
    }
    cout<<"请在此输入各式的结果:"<<endl;
    for(i=0;i<num;i++)
        cin>>C[i];
    int t=0,corr=0;
    //判断输入结果的对错
    for(i=0;i<A0;i++)
    {
        if(c0[i]==C[t])
        {t++;corr++;}
        else
        {
            t++;
            cout<<"第"<<t<<"题答错!"<<endl;
        }
    }
    for(i=0;i<A1;i++)
    {
        if(c1[i]==C[t])
        {t++;corr++;}
        else
        {
            t++;
            cout<<"第"<<t<<"题答错!"<<endl;
        }
    }
    for(i=0;i<A2;i++)
    {
        if(c2[i]==C[t])
        {t++;corr++;}
        else
        {
            t++;
            cout<<"第"<<t<<"题答错!"<<endl;
        }
    }
    for(i=0;i<A3;i++)
    {
        if(c3[i]==C[t])
        {t++;corr++;}
        else
        {
            t++;
            cout<<"第"<<t<<"题答错!"<<endl;
        }
    }
    if(num==corr)
        cout<<"恭喜你都答对了!!!!!!"<<endl;
    system("pause");
}

码云代码:https://gitee.com/li_min_123/software_engineering/tree/master/

posted @ 2020-02-28 15:40  李敏17074222  阅读(220)  评论(3编辑  收藏  举报