学步园

#include<iostream>//微软编程之美2013全国挑战赛复赛第2题        
//由于比赛结束后，提交入口关闭，没来得及提交,但本地数据测试是没错的，不知道能否AC
#include<fstream>
#include<iomanip>
using namespace std;

struct yingxiangli{
	int d1,d2,d3,d4;
	double the_larger;
	int flag;
};

int main(){
	int m, a, b, c;
	int d1, d2, d3, d4;
	int temp1, temp2, temp3,temp4,tem_f;
	double tem_l;
	int pro1, pro2;
	//ifstream ifs("shuju.txt");//
	//ifs>>m;//
	cin>>m;
	for(int i =0; i < m; i++){
		yingxiangli emp[505];
		//ifs>>a>>b>>c;//
		cin>>a>>b>>c;
		for(int j = 0; j < a; j++){
			//ifs>>d1>>d2>>d3>>d4;//
			cin>>d1>>d2>>d3>>d4;
			emp[j].d1 = d1;emp[j].d2 = d2;emp[j].d3 = d3;emp[j].d4 = d4;
			pro1 = (d1 + 0.0) / d2;
			pro2 = (d3 + 0.0) / d4;
			if(pro1 > pro2){
				emp[j].flag = 1;
				emp[j].the_larger = (d1 + 0.0) / d2;
			}else{
				emp[j].flag = 2;
				emp[j].the_larger = (d3 + 0.0) / d4;

			}
		}
		for(int n1 = 0; n1 < a - 1; n1++){
			for(int n2 = n1 + 1; n2 < a; n2++){
				if(emp[n1].the_larger < emp[n2].the_larger){
					tem_l = emp[n2].the_larger;
					temp1 = emp[n2].d1;
					temp2 = emp[n2].d2;
					temp3 = emp[n2].d3;
					temp4 = emp[n2].d4;
					tem_f = emp[n2].flag;
					emp[n2].the_larger = emp[n1].the_larger;
					emp[n2].d1 = emp[n1].d1;
					emp[n2].d2 = emp[n1].d2;
					emp[n2].d3 = emp[n1].d3;
					emp[n2].d4 = emp[n1].d4;
					emp[n2].flag = emp[n1].flag;
					emp[n1].the_larger = tem_l;
					emp[n1].d1 = temp1;
					emp[n1].d2 = temp2;
					emp[n1].d3 = temp3;
					emp[n1].d4 = temp4;
					emp[n1].flag = tem_f;
				}
			}
		}
		double jiazhi = 0;
		double fumian = 0;
		//int top = b + c;
		for(int n3 = 0; n3 < a && (b > 0 || c > 0); n3++){
			if(emp[n3].flag == 1 && b != 0){
				jiazhi += emp[n3].d1;
				fumian += emp[n3].d2;
				b--;
			}else if(emp[n3].flag == 2 && c != 0){
				jiazhi += emp[n3].d3;
				fumian += emp[n3].d4;
				c--;
			}else if((c == 0 && emp[n3].flag == 2) || (b == 0 && emp[n3].flag == 1)){
				if(emp[n3].flag == 1){
					emp[n3].the_larger = (emp[n3].d3 + 0.0) / emp[n3].d4;
					emp[n3].flag = 2;
				}else if(emp[n3].flag == 2){
					emp[n3].the_larger = (emp[n3].d1 + 0.0) / emp[n3].d2;
					emp[n3].flag = 1;
				}
				for(int n4 = n3; n4 < a - 1; n4++){
					if(emp[n4].the_larger < emp[n4 + 1].the_larger){
						tem_l = emp[n4].the_larger;
						temp1 = emp[n4].d1;
						temp2 = emp[n4].d2;
						temp3 = emp[n4].d3;
						temp4 = emp[n4].d4;
						tem_f = emp[n4].flag;
						emp[n4].the_larger = emp[n4 + 1].the_larger;
						emp[n4].d1 = emp[n4 + 1].d1;
						emp[n4].d2 = emp[n4 + 1].d2;
						emp[n4].d3 = emp[n4 + 1].d3;
						emp[n4].d4 = emp[n4 + 1].d4;
						emp[n4].flag = emp[n4 + 1].flag;
						emp[n4 + 1].the_larger = tem_l;
						emp[n4 + 1].d1 = temp1;
						emp[n4 + 1].d2 = temp2;
						emp[n4 + 1].d3 = temp3;
						emp[n4 + 1].d4 = temp4;
						emp[n4 + 1].flag = tem_f;
					}
				}
				n3--;
			}
		}
		//cout<<jiazhi<<" "<<fumian<<endl;//
		cout<<fixed;
		cout<<"Case #"<<i + 1<<": "<<setprecision(6)<<jiazhi/fumian<<endl;
		//system("pause");//
	}
}