题目链接:

#include 
     
      #include 
      
       using namespace std;double exp(double x){    double ans=1;    double td=1;    for(int i=1;i<120;i++){        td=td*x/i;        ans+=td;    }    return ans;} const double ine= 2.718281828 ;double ln(double x){    double ans=0;   while(x<-1||x>1){    ans++;    x=(x+1)/ine-1;   }    double td=-1;    for(int i=1;i<120;i++){        td*=-x;        ans+=td/(double)i;    }    return ans;}double t,d,h,temp;int flag;int main(){    ios::sync_with_stdio(false);    char st[9];    while(cin>>st){        flag=0;        if(st[0]=='E'){            break;        }        cin>>temp;        if(st[0]=='T'){                flag+=1;                t=temp;        }        else if(st[0]=='D'){                flag+=2;                d=temp;        }        else if(st[0]=='H'){                flag+=3;                h=temp;        }        cin>>st;        cin>>temp;        if(st[0]=='T'){                flag+=1;                t=temp;        }        else if(st[0]=='D'){                flag+=2;                d=temp;        }        else if(st[0]=='H'){                flag+=3;                h=temp;        }        if(flag==3) h=t-5.555+0.555*6.11*exp(5417.7530* ((1/273.16) - (1/(d+273.16))));        else if(flag==4) {                double e=((h-t)/0.5555)+10.0;                double td=ln((e/6.11)-1);                d=1.0/((1.0/273.16)-td/5417.7530)-273.16;        }        else t= h+ 5.555- 0.555*6.11*exp(5417.7530* ((1/273.16) - (1/(d+273.16))));        cout<<"T "<
       
        <
        
         <
         
          <<" D "<
          
           <<" H "<
           
            <<"\n"; } return 0;}