九度oj题目1002：Grading

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//不是说C语言就是C++的子集么，为毛printf在九度OJ上不能通过编译，abs还不支持参数为整型的abs()重载

//C++比较正确的做法是#include<cmath.h>，cout的格式输出需要用到#include<iomanip>库函数，具体为：cout<<fixed<<setprecision(1)<<score<<endl;结果保留一位小数

#include<iostream>#include<iomanip>#include<cmath>using namespace std;int maxscore(int ,int ,int);int main(){double p,t,g1,g2,g3,gj;while(cin>>p>>t>>g1>>g2>>g3>>gj){double score;if(g1<=p&&g2<=p&&t<p){if(abs(g1-g2)<=t){score=(g1+g2)/2.0;}else if(abs(g1-g3)<=t&&abs(g3-g2)<=t){score=maxscore(g1,g2,g3);}else if(abs(g1-g3)<=t||abs(g3-g2)<=t){if(abs(g1-g3)<abs(g2-g3)){score=(g1+g3)/2.0;}else{score=(g2+g3)/2.0;}}else{score=gj;}}cout<<fixed<<setprecision(1)<<score<<endl;}return 0;}int maxscore(int g1,int g2 ,int g3){double score;if(g1>g2){if(g1>g3)score=g1;elsescore=g3;}else{if(g2>g3)score=g2;elsescore=g3;}return score;}

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