HustOJ - 1021

 1 #include<iostream>
 2 #include<vector>
 3 #include<algorithm>
 4 #include<string>
 5 #include<iomanip>
 6 using namespace std;
 7 //?á11ì?:
 8 struct student
 9 {
10     string S;
11     float s;
12 } stu;
13 bool myComp(const student &s1,const student &s2)
14 {
15     if (s1.s!=s2.s) return s1.s>s2.s;
16     if (s1.S!=s2.S) return s1.S<s2.S;
17 };
18 int main()
19 {
20     vector<float> ax;
21     vector<student> vx;
22     student zx;
23     int q,n,p;
24     float y;
25     float cj;
26     cin>>q;
27     for (int i=0; i<q; i++)
28     {
29         cin>>n;
30         for (int j=0; j<n; j++)
31         {
32             cin>>y;
33             ax.push_back(y); 
34         }
35         cin>>p;
36         for(int k=0; k<p; k++)
37         {
38             cin >> zx.S;
39             y=0.0;
40             for (int u=0; u<n; u++)
41             {
42                 cin    >> cj;
43                 if (cj<60) continue;
44                 y=y+(cj-50)/10 * ax[u];
45             }
46             zx.s=y/10;
47             vx.push_back(zx); 
48         }
49         cout<<"class "<<i+1<<":"<<endl;
50         sort(vx.begin(),vx.end(),myComp);
51         for (vector<student>::iterator vix=vx.begin();vix!=vx.end();vix++)
52         {
53             cout<<fixed<<setprecision(2);
54             cout<<left<<setw(11);
55             cout<<(*vix).S<<(*vix).s<<endl; 
56         }
57         vx.clear();
58         ax.clear();
59     }
60     return 0;
61 }