二柱子阶段三

 

package sizeyunsuan2;
 
import java.util.*;
import java.util.Random;
 
public class si_ze_yun_suan2 {
 
    char fu_hao[]={'+','-','*','/'};
    int a[]=new int[15];                //暂时存放新生成的式子
    String[][] ti_mu=new String[3][1000];   //存放运算完之后的式子
    int da_an[][]=new int[3][1000];
    int cao_zuo_ge_shu,kuo_hao=0;
    int cheng_chu=2,num=30,fan_wei=100;
    String[][] cuo_ti=new String[3][1000];       //用于存放错题
    int[][] cuo_da_an=new int[3][1000];
    int[] cuo_num={0,0,0};          //用于存放错题数目
    int[] temp={0,0,0};
    int kuo_wei_zhi;
     
// **************************************主函数
    public static void main(String args[])
    {
        enum1();
    }
     
 //**************************************
     
    public static void enum1()
    {
        int choose=1;
        si_ze_yun_suan2 c= new si_ze_yun_suan2();
        while(choose==1){
            System.out.println("**************");
            System.out.println("1.参数设置");
            System.out.println("2.小学二年级口算题");
            System.out.println("3.小学三年级口算题");
            System.out.println("4.小学四年级口算题");
            System.out.println("5.错题集");
            System.out.println("6.退出");
            System.out.println("**************");
             
            Scanner input = new Scanner(System.in);
            int x = input.nextInt();
             
            switch(x){
            case 1:c.can_shu(); break;
             
            case 2:c.magic(2,0,2,x-2);       //magic(czgs1,kuo_hao,cheng_chu,classes)
                    break;
                    
            case 3:c.magic(4,0,2,x-2);
                    break;
                     
            case 4:c.magic(4,1,4,x-2);
                    break;
                     
            case 5:c.cuo_ti_ji();
                    break;
                     
            case 6:choose=0;
                   System.out.println("再见！");
                    break;
                     
            default:System.out.println("错误数字！");break;
             
            }
        }
 
    }
     
  //**************************************
    void can_shu()
    {
        Scanner input=new Scanner(System.in);
        System.out.println("出题数? ");
        num=input.nextInt();
 
        System.out.println("操作数数值范围？");
        fan_wei=input.nextInt();
    }
     
  //************************************
     
    void cuo_ti(int classes)
    {
        if(cuo_num[classes]==0){
            System.out.println("无错题");
        }
        else{
            System.out.print("
*****错题*****
");
            for(int i=0;i<cuo_num[classes];i++)
            {
                System.out.print((i+1));
                System.out.print(".");
                System.out.print(cuo_ti[classes][i]);
                System.out.print(cuo_da_an[classes][i]);
                System.out.println();
            }
            System.out.println("正确率："+(double)(temp[classes]*num-cuo_num[classes])*100/(temp[classes]*num)+"%");
         }
    }
     
    //*******************************5.错题集
     
    void cuo_ti_ji()
    {
        System.out.println("几年级？");
        Scanner input=new Scanner(System.in);
        int x=input.nextInt();
        if(x>=2&&x<=4) cuo_ti(x-2);
        else {System.out.print("错误数字！"); cuo_ti_ji();}
    }
     
 
    //*************************************
     
    int zuoti(int classes,int i)
    {
        int daan1;
        Scanner input=new Scanner(System.in);
        daan1=input.nextInt();
        if(daan1==da_an[classes][i])
        {
            System.out.print("*****正确*****
");
            return 1;
        }
        else
        {
            System.out.print("*****错误*****
");
            cuo_ti[classes][cuo_num[classes]]=ti_mu[classes][i];
            cuo_da_an[classes][cuo_num[classes]]=da_an[classes][i];
            cuo_num[classes]++;
            return 0;
        }
    }
     
//***********************************
    int yun_suan(int kh,int kuo_wei_zhi)
    {
        int daan=0,w=0;
         
         if(kh==1)
         {
            int k=kuo_wei_zhi+1;
            switch(a[k]%cheng_chu){
            case 0:a[k-1]+=a[k+1];
                   break;
            case 1:a[k-1]-=a[k+1];
                   break;
            case 2: a[k-1]=a[k-1]*a[k+1];
                    break;
            case 3: a[k-1]=a[k-1]/a[k+1];
                    break;
            }
            for(int j=k;j<cao_zuo_ge_shu*2+2;j++) a[j]=a[j+2];
         }
          
        for(int k=1;k<(cao_zuo_ge_shu)*2-2;k+=2)
        {
            switch(a[k]%cheng_chu){
                case 2:
                    a[k-1]=a[k-1]*a[k+1];
                    for(int j=k;j<cao_zuo_ge_shu*2+2;j++) a[j]=a[j+2];
                    k-=2;
                    break;
                case 3:
                    a[k-1]=a[k-1]/a[k+1];
                    for(int j=k;j<cao_zuo_ge_shu*2+2;j++) a[j]=a[j+2];
                    k-=2;
                    break;
            }
        }
 
        daan+=a[0];
        for(int k=1;k<cao_zuo_ge_shu*2-2;k+=2)
        {
             if(a[k]%cheng_chu==0) daan+=a[k+1];
             else daan-=a[k+1];
        }
       
        for(int j=0;j<cao_zuo_ge_shu*2;j++)
        {
            a[j]=0;
        }
         
        return daan;
    }
     
     
//**************************************** 
    static int cha_chong(int i,int czgs,int[] a,int coc)
    {
        int same=0;
        for(int j=0;j<i;j++)
            {
                for(int k=0;k<czgs*2-1;k++)
                {
                    if(a[j]==a[k]) same++;
                    if(a[k+1]==0&&a[k]%coc==3&&k%2==1) return 0;
                    if(k%2==1&&a[k]%coc==3&&a[k-1]%a[k+1]!=0) return 0;
                    if(k%2==1&&a[k]%coc==3&&a[k-1]<a[k+1]) return 0;
                }
                if(same==czgs*2-1) return 0;
                else return 1;
            }
        return 1;
    }
     
//***************************************
     
    void ji_lu(int[] a,int classes,int i,int kh,int cheng_c,int k_w_z)
    {
        kuo_wei_zhi=k_w_z;
        ti_mu[classes][i]=" ";
        for(int j=0;j<cao_zuo_ge_shu*2-2;j+=2)
        {
            if(kh==1&&j==kuo_wei_zhi) ti_mu[classes][i]+='(';
            ti_mu[classes][i]+=a[j];
            if(kh==1&&j==kuo_wei_zhi+2) ti_mu[classes][i]+=')';
            ti_mu[classes][i]+=fu_hao[a[j+1]%cheng_c];
        }
        ti_mu[classes][i]+=a[cao_zuo_ge_shu*2-2];
        ti_mu[classes][i]+='=';
    }
     
//**************************************
     
    void magic(int czgs1,int kuo_h,int cheng_c,int classes)
    {
        temp[classes]++;
        cao_zuo_ge_shu=czgs1;
        kuo_hao=kuo_h;
        cheng_chu=cheng_c;
        int t,kh=0;
         
        Random rand1 = new Random();
        Random x = new Random();
        for(int i=0;i<num;i++)
        {
            for(int k=0;k<cao_zuo_ge_shu*2-1;k++)
            {
                if(kuo_h==1&&k==0)
                {
                    kuo_wei_zhi=rand1.nextInt(fan_wei+1)%cao_zuo_ge_shu;
                    kh=rand1.nextInt(fan_wei+1)%2;
                }
                a[k]=rand1.nextInt(fan_wei+1);            //随机生成
            }
             
             
            t=cha_chong(i,czgs1,a,cheng_c);               //查重
            
            if(t!=0)
            {  
                ji_lu(a,classes,i,kh,cheng_c,kuo_wei_zhi);
                da_an[classes][i]=yun_suan(kh,kuo_wei_zhi);
                System.out.print(ti_mu[classes][i]);
                zuoti(classes,i);
            } else i--;
        }
        cuo_ti(classes);
    }
 
}

package sizeyunsuan2;

 

import java.util.*;

import java.util.Random;

 

public class si_ze_yun_suan2 {

 

    char fu_hao[]={'+','-','*','/'};

    int a[]=new int[15];                //暂时存放新生成的式子

    String[][] ti_mu=new String[3][1000];   //存放运算完之后的式子

    int da_an[][]=new int[3][1000];

    int cao_zuo_ge_shu,kuo_hao=0;

    int cheng_chu=2,num=30,fan_wei=100;

    String[][] cuo_ti=new String[3][1000];       //用于存放错题

    int[][] cuo_da_an=new int[3][1000];

    int[] cuo_num={0,0,0};          //用于存放错题数目

    int[] temp={0,0,0};

    int kuo_wei_zhi;

     

// **************************************主函数

    public static void main(String args[])

    {

        enum1();

    }

     

 //**************************************

     

    public static void enum1()

    {

        int choose=1;

        si_ze_yun_suan2 c= new si_ze_yun_suan2();

        while(choose==1){

            System.out.println("**************");

            System.out.println("1.参数设置");

            System.out.println("2.小学二年级口算题");

            System.out.println("3.小学三年级口算题");

            System.out.println("4.小学四年级口算题");

            System.out.println("5.错题集");

            System.out.println("6.退出");

            System.out.println("**************");

             

            Scanner input = new Scanner(System.in);

            int x = input.nextInt();

             

            switch(x){

            case 1:c.can_shu(); break;

             

            case 2:c.magic(2,0,2,x-2);       //magic(czgs1,kuo_hao,cheng_chu,classes)

                    break;

                    

            case 3:c.magic(4,0,2,x-2);

                    break;

                     

            case 4:c.magic(4,1,4,x-2);

                    break;

                     

            case 5:c.cuo_ti_ji();

                    break;

                     

            case 6:choose=0;

                   System.out.println("再见！");

                    break;

                     

            default:System.out.println("错误数字！");break;

             

            }

        }

 

    }

     

  //**************************************

    void can_shu()

    {

        Scanner input=new Scanner(System.in);

        System.out.println("出题数? ");

        num=input.nextInt();

 

        System.out.println("操作数数值范围？");

        fan_wei=input.nextInt();

    }

     

  //************************************

     

    void cuo_ti(int classes)

    {

        if(cuo_num[classes]==0){

            System.out.println("无错题");

        }

        else{

            System.out.print(" *****错题***** ");

            for(int i=0;i<cuo_num[classes];i++)

            {

                System.out.print((i+1));

                System.out.print(".");

                System.out.print(cuo_ti[classes][i]);

                System.out.print(cuo_da_an[classes][i]);

                System.out.println();

            }

            System.out.println("正确率："+(double)(temp[classes]*num-cuo_num[classes])*100/(temp[classes]*num)+"%");

         }

    }

     

    //*******************************5.错题集

     

    void cuo_ti_ji()

    {

        System.out.println("几年级？");

        Scanner input=new Scanner(System.in);

        int x=input.nextInt();

        if(x>=2&&x<=4) cuo_ti(x-2);

        else {System.out.print("错误数字！"); cuo_ti_ji();}

    }

     

 

    //*************************************

     

    int zuoti(int classes,int i)

    {

        int daan1;

        Scanner input=new Scanner(System.in);

        daan1=input.nextInt();

        if(daan1==da_an[classes][i])

        {

            System.out.print("*****正确***** ");

            return 1;

        }

        else

        {

            System.out.print("*****错误***** ");

            cuo_ti[classes][cuo_num[classes]]=ti_mu[classes][i];

            cuo_da_an[classes][cuo_num[classes]]=da_an[classes][i];

            cuo_num[classes]++;

            return 0;

        }

    }

     

//***********************************

    int yun_suan(int kh,int kuo_wei_zhi)

    {

        int daan=0,w=0;

         

         if(kh==1)

         {

            int k=kuo_wei_zhi+1;

            switch(a[k]%cheng_chu){

            case 0:a[k-1]+=a[k+1];

                   break;

            case 1:a[k-1]-=a[k+1];

                   break;

            case 2: a[k-1]=a[k-1]*a[k+1];

                    break;

            case 3: a[k-1]=a[k-1]/a[k+1];

                    break;

            }

            for(int j=k;j<cao_zuo_ge_shu*2+2;j++) a[j]=a[j+2];

         }

          

        for(int k=1;k<(cao_zuo_ge_shu)*2-2;k+=2)

        {

            switch(a[k]%cheng_chu){

                case 2:

                    a[k-1]=a[k-1]*a[k+1];

                    for(int j=k;j<cao_zuo_ge_shu*2+2;j++) a[j]=a[j+2];

                    k-=2;

                    break;

                case 3:

                    a[k-1]=a[k-1]/a[k+1];

                    for(int j=k;j<cao_zuo_ge_shu*2+2;j++) a[j]=a[j+2];

                    k-=2;

                    break;

            }

        }

 

        daan+=a[0];

        for(int k=1;k<cao_zuo_ge_shu*2-2;k+=2)

        {

             if(a[k]%cheng_chu==0) daan+=a[k+1];

             else daan-=a[k+1];

        }

       

        for(int j=0;j<cao_zuo_ge_shu*2;j++)

        {

            a[j]=0;

        }

         

        return daan;

    }

     

     

//**************************************** 

    static int cha_chong(int i,int czgs,int[] a,int coc)

    {

        int same=0;

        for(int j=0;j<i;j++)

            {

                for(int k=0;k<czgs*2-1;k++)

                {

                    if(a[j]==a[k]) same++;

                    if(a[k+1]==0&&a[k]%coc==3&&k%2==1) return 0;

                    if(k%2==1&&a[k]%coc==3&&a[k-1]%a[k+1]!=0) return 0;

                    if(k%2==1&&a[k]%coc==3&&a[k-1]<a[k+1]) return 0;

                }

                if(same==czgs*2-1) return 0;

                else return 1;

            }

        return 1;

    }

     

//***************************************

     

    void ji_lu(int[] a,int classes,int i,int kh,int cheng_c,int k_w_z)

    {

        kuo_wei_zhi=k_w_z;

        ti_mu[classes][i]=" ";

        for(int j=0;j<cao_zuo_ge_shu*2-2;j+=2)

        {

            if(kh==1&&j==kuo_wei_zhi) ti_mu[classes][i]+='(';

            ti_mu[classes][i]+=a[j];

            if(kh==1&&j==kuo_wei_zhi+2) ti_mu[classes][i]+=')';

            ti_mu[classes][i]+=fu_hao[a[j+1]%cheng_c];

        }

        ti_mu[classes][i]+=a[cao_zuo_ge_shu*2-2];

        ti_mu[classes][i]+='=';

    }

     

//**************************************

     

    void magic(int czgs1,int kuo_h,int cheng_c,int classes)

    {

        temp[classes]++;

        cao_zuo_ge_shu=czgs1;

        kuo_hao=kuo_h;

        cheng_chu=cheng_c;

        int t,kh=0;

         

        Random rand1 = new Random();

        Random x = new Random();

        for(int i=0;i<num;i++)

        {

            for(int k=0;k<cao_zuo_ge_shu*2-1;k++)

            {

                if(kuo_h==1&&k==0)

                {

                    kuo_wei_zhi=rand1.nextInt(fan_wei+1)%cao_zuo_ge_shu;

                    kh=rand1.nextInt(fan_wei+1)%2;

                }

                a[k]=rand1.nextInt(fan_wei+1);            //随机生成

            }

             

             

            t=cha_chong(i,czgs1,a,cheng_c);               //查重

            

            if(t!=0)

            {  

                ji_lu(a,classes,i,kh,cheng_c,kuo_wei_zhi);

                da_an[classes][i]=yun_suan(kh,kuo_wei_zhi);

                System.out.print(ti_mu[classes][i]);

                zuoti(classes,i);

            } else i--;

        }

        cuo_ti(classes);

    }

 

}