#include <iostream>
#include <ctime>
#include <cstdlib>
using namespace std;
int main(int argc, char** argv) {
int x,y,symbol,ans;
int n,temp,sum=0;
srand(time(0));
for(int i=1;i<=10;i++){
x=rand()%9+1;
y=rand()%9+1;
symbol=rand()%4;
if(x<y&&symbol==1){
temp=x;
x=y;
y=temp;
}
switch(symbol){
case 0:
ans=x+y;
cout<<x<<'+'<<y<<'=';
break;
case 1:
ans=x-y;
cout<<x<<'-'<<y<<'=';
break;
case 2:
ans=x*y;
cout<<x<<'*'<<y<<'=';
break;
case 3:
ans=x/y;
cout<<x<<'/'<<y<<'=';
break;
}
cin>>n;
if(n=ans){
sum+=10;
cout<<"对了!"<<endl;
}else{
cout<<"错了!"<<endl;
}
cout<<"得分:"<<sum<<endl;
}
return 0;
}