`
#include<bits/stdc++.h>
using namespace std;
struct s{
	char na[100];
	int a;
	double c[15];
}stu[105];
int main(){
	//std::ios::sync_with_stdio(false);
	int x,y,z;
	cin>>x>>y>>z;
	for(int i=0;i<x;i++){
		cin>>stu[i].na>>stu[i].a;
		for(int j=0;j<y;j++){
			double sum=0,aa;
			for(int k=0;k<z;k++){
				cin>>aa;
				sum+=aa;
			}
			stu[i].c[j]=sum*1.0/z;
		}
	}
	int t;
	while(cin>>t&&t){
		int flag=1;
		for(int i=0;i<x;i++){
			if(t==stu[i].a) {
//				cout<<stu[i].na<<" ";
				printf("%s ",stu[i].na);
				for(int j=0;j<y;j++) {
					printf("%.2lf",stu[i].c[j]);
					if(j<y-1) printf(" ");
				}
				cout<<endl;
				flag=0;
				break;				
			}
		}
		if(flag==1) cout<<"No such Student!"<<endl;
	}
	return 0;
}
`

#include <stdio.h>

const int MAX = 100;
const int SUBJECT = 100;

struct Stu { 
    int id;
    char name[10];           // 名字
    int score[SUBJECT][MAX]; // 学科数/学期数
    double ave[SUBJECT];
};

int main() {
    int stuNum, subject, yearMax;
    scanf("%d%d%d", &stuNum, &subject, &yearMax);
    Stu stu[stuNum];
    // 输入学生信息
    for (int i = 0; i < stuNum; i++) {
        scanf(" %s%d", stu[i].name, &stu[i].id);
        for (int j = 0; j < subject; j++) {
            double sum = 0;
            for (int k = 0; k < yearMax; k++) {
                scanf("%d", &stu[i].score[j][k]);
                sum += stu[i].score[j][k];
            }
            stu[i].ave[j] = sum / yearMax;
        }
    }
    // 查询
    while (1) {
        int checkId;
        scanf("%d", &checkId);
        if (checkId == 0)
            break;
        bool flag = false;
        for (int i = 0; i < stuNum; i++) {
            if (stu[i].id == checkId) {
                flag = true;
                printf("%s ", stu[i].name);
                for (int j = 0; j < subject; j++)
                    printf("%.2lf%c", stu[i].ave[j],
                           j < subject - 1 ? ' ' : '\n');
                break;
            }
        }
        if (!flag) {
            printf("No such Student!\n");
        }
    }
    return 0;
}

#include <stdio.h>

const int MAX = 100;
const int SUBJECT = 100;

struct Stu { 
    int id;
    char name[10];           // 名字
    int score[SUBJECT][MAX]; // 学科数/学期数
    double ave[SUBJECT];
};

int main() {
    int stuNum, subject, yearMax;
    scanf("%d%d%d", &stuNum, &subject, &yearMax);
    Stu stu[stuNum];
    // 输入学生信息
    for (int i = 0; i < stuNum; i++) {
        scanf(" %s%d", stu[i].name, &stu[i].id);
        for (int j = 0; j < subject; j++) {
            double sum = 0;
            for (int k = 0; k < yearMax; k++) {
                scanf("%d", &stu[i].score[j][k]);
                sum += stu[i].score[j][k];
            }
            stu[i].ave[j] = sum / yearMax;
        }
    }
    // 查询
    while (1) {
        int checkId;
        scanf("%d", &checkId);
        if (checkId == 0)
            break;
        bool flag = false;
        for (int i = 0; i < stuNum; i++) {
            if (stu[i].id == checkId) {
                flag = true;
                printf("%s ", stu[i].name);
                for (int j = 0; j < subject; j++)
                    printf("%.2lf%c", stu[i].ave[j],
                           j < subject - 1 ? ' ' : '\n');
                break;
            }
        }
        if (!flag) {
            printf("No such Student!\n");
        }
    }
    return 0;
}