修练者
#include<iostream>
#include<cstdio>
using namespace std;
int main()
{
double a,b=0,c,d,e,f,g,h,i,j,k;
cout<<"1+2+3+4+......+100="<<endl;
cin>>a;
if(a==5050){
b+=10;
cout<<"Yes";
}
else{
cout<<"No";
}
cout<<endl<<endl;
cout<<"21.5-2.5+28.5-7.5="<<endl;
cin>>c;
if(c==40){
b+=10;
cout<<"Yes";
}
else{
cout<<"No";
}
cout<<endl<<endl;
cout<<"500-267-215="<<endl;
cin>>d;
if(d==18){
b+=10;
cout<<"Yes";
}
else{
cout<<"No";
}
cout<<endl<<endl;
cout<<"800-267*2-266="<<endl;
cin>>e;
if(e==0){
b+=10;
cout<<"Yes";
}
else{
cout<<"No";
}
cout<<endl<<endl;
cout<<"600*2/3/4/5="<<endl;
cin>>f;
if(f==20){
b+=10;
cout<<"Yes";
}
else{
cout<<"No";
}
cout<<endl<<endl;
cout<<"5+8+11+14+......+29+32一共有多少个数?"<<endl;
cin>>g;
if(g==10){
b+=10;
cout<<"Yes";
}
else{
cout<<"No";
}
cout<<endl<<endl;
cout<<"8!="<<endl;
cin>>h;
if(h==40320){
b+=10;
cout<<"Yes";
}
else{
cout<<"No";
}
cout<<endl<<endl;
cout<<"3x=15,x="<<endl;
cin>>i;
if(i==5){
b+=10;
cout<<"Yes";
}
else{
cout<<"No";
}
cout<<endl<<endl;
cout<<"1-2+3-4+5-6+7-8+......+99-100"<<endl;
cin>>j;
if(j==-50){
b+=10;
cout<<"Yes";
}
else{
cout<<"No";
}
cout<<endl<<endl;
cout<<"0.25*5*5*5*5*5"<<endl;
cin>>j;
if(j==781.25){
b+=10;
cout<<"Yes";
}
else{
cout<<"No";
}
cout<<endl<<endl;
if(b==100){
cout<<"分数:"<<b;
cout<<endl;
cout<<"excellent";
}
if(b<100&&b>60){
cout<<"分数:"<<b;
cout<<endl;
cout<<"good";
}
if(b<60&&b>=10){
cout<<"分数:"<<b;
cout<<endl;
cout<<"accepted";
}
if(b<=10){
cout<<"分数:"<<b;
cout<<endl;
cout<<"sorry";
}
cout<<endl<<endl;
cout<<"恭喜您,完成了测试!";
return 0;
}