第一次代碼30道電腦

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#include<iostream>#include <stdlib.h> #include <time.h> #define random(x) (rand()%x)using namespace std;void main(){    srand((int)time(0));    for(int j=0;j<30;j++)    {        int i;        i=rand()%2;        switch(i)       {           case(0):          {            int a,b,x;            char y;            x=rand()%4;            switch(x)          {             case(0):y=‘+‘;break;             case(1):y=‘-‘;break;             case(2):y=‘*‘;break;             case(3):y=‘/‘;break;          }           a=random(100);           b=random(100);           if(y==‘/‘)           {           if(b==0)            {                 do           {b=random(100);} while(b==0);           }           cout<<a<<y<<b<<"="<<endl;break;        }              case(1):         {             int a,b,c,d,x;             char y;             x=rand()%4;             switch(x)          {             case(0):y=‘+‘;break;             case(1):y=‘-‘;break;             case(2):y=‘*‘;break;             case(3):y=‘/‘;break;          }            a=random(100);            b=random(100);            c=random(100);            d=random(100);                         if(a>b)            cout<<"("<<b<<"/"<<a<<")";            else            {                if(b==0)            {                 do{b=random(100);} while(b==0);            }            cout<<"("<<a<<"/"<<b<<")";            }            cout<<y;            if(c>d)            cout<<"("<<d<<"/"<<c<<")";            else                {                if(d==0)            {                 do{d=random(100);} while(d==0);            }            cout<<"("<<c<<"/"<<d<<")";            }            cout<<"="<<endl;break;       }   }    }}}

 

第一次代碼30道電腦

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