解

#include<iostream>
#include<cstdio>
using namespace std;
struct students{
    string name;
    int number;
    int chinese;
	int maths;
}s[100];
int main(){
    int n,m,num;
    string a,b;
    cin >> n >> m;
    for(int i=0;i<n;i++){
        cin >> s[i].name >> s[i].number >> s[i].chinese >> s[i].maths;
    }
    for(int i=0;i<m;i++){
        cin >> a;
        if(a=="name"){
            cin >> b;
            for(int j=0;j<n;j++){
                if(s[j].name==b){
                    cout << s[j].chinese << " " << s[j].maths << endl;
                }
                else
                    continue;
            }
            
        }
        else if(a=="number"){
            cin >> num;
            printf("%.2f\n",(s[num].chinese+s[num].maths)/2.0);              //注意保留两位小数！
        }
        
    }
}