poj3299

Source Code

Problem: 3299		User: mtawaken
Memory: 200K		Time: 0MS
Language: C++		Result: Accepted

• Source Code
• 
  

  #include <cstdio>
  #include <math.h>
  
  char c1,c2;
  double f1,f2;
  char tag[]={'T','D','H'};
  
  double res[3];
  
  double dew2h(double dewpoint){
  	double e = 6.11*exp(5417.7530*((1/273.16)-(1/(dewpoint+273.16))));
  	return (0.5555)*(e-10.0);
  }
  double h2dew(double h){
  	double e = (h/0.5555)+10.0;
  	return 1/((1/273.16)-((log(e/6.11))/5417.7530))-273.16;
  }
  bool readIn(){
  	scanf("%c",&c1);
  	if(c1=='E')return false;
  	return scanf("%lf %c%lf",&f1,&c2,&f2)==3;
  }
  
  int main(){
  	while(readIn()){	
  		res[0]=res[1]=res[2]=102.0;
  		for(int i=0;i<3;i++){
  			if(tag[i]==c1)res[i]=f1;
  			if(tag[i]==c2)res[i]=f2;
  		}
  		if(res[0]>101.0){
  			double h = dew2h(res[1]);
  			res[0] = res[2] - h;
  		}else if(res[1]>101.0){
  			double h = res[2] - res[0];
  			res[1] = h2dew(h);
  		}else{
  			double h = dew2h(res[1]);
  			res[2] = res[0] + h;
  		}
  		for(int i=0;i<3;i++){
  			printf("%c %.1f ",tag[i],res[i]);			
  		}
  		printf("\n");
  		getchar();
  	}
  }