Go: package main

/*
グラフの表現 隣接行列による表現
*/

import (
	"bufio"
	"fmt"
	"log"
	"os"
	"strconv"
	"strings"
)

func main() {
	scanner := makeScanner(8192)
	n := eGetInt(scanner)
	g := make([][]int, n)
	for i := 0; i < n; i++ {
		g[i] = make([]int, n)
		ints := eGetInts(scanner)
		num := ints[0]
		for j := 0; j < ints[1]; j++ {
			g[num-1][ints[j+2]-1] = 1
		}
	}
	for i := 0; i < n; i++ {
		s := fmt.Sprint(g[i])
		fmt.Println(s[1 : len(s)-1])
	}
}

////////////////////////////////////////////////////////////////////////////////
// ライブラリ
////////////////////////////////////////////////////////////////////////////////
func makeScanner(maxByte int) *bufio.Scanner {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Buffer(make([]uint8, 0, 8192), maxByte)
	return scanner
}
func makeWordScanner() *bufio.Scanner {
	scanner := makeScanner(8192)
	scanner.Split(bufio.ScanWords)
	return scanner
}
func eGetLine(r *bufio.Scanner) string {
	if r.Scan() {
		return r.Text()
	}
	err := r.Err()
	if err != nil {
		log.Fatal(err)
	}
	// EOF
	return ""
}
func eGetInt(r *bufio.Scanner) int {
	line := eGetLine(r)
	return eAtoi(line)
}
func eGetInt64(r *bufio.Scanner) int64 {
	line := eGetLine(r)
	return eAtoInt64(line)
}
func eGetFields(r *bufio.Scanner) []string {
	line := eGetLine(r)
	return strings.Fields(line)
}
func eGetInts(r *bufio.Scanner) []int {
	fields := eGetFields(r)
	ints := make([]int, len(fields))
	for i := 0; i < len(ints); i++ {
		ints[i] = eAtoi(fields[i])
	}
	return ints
}
func eGetInt64s(r *bufio.Scanner) []int64 {
	fields := eGetFields(r)
	ints := make([]int64, len(fields))
	for i := 0; i < len(ints); i++ {
		ints[i] = eAtoInt64(fields[i])
	}
	return ints
}
func eGetChars(r *bufio.Scanner) []string {
	line := eGetLine(r)
	return strings.Split(line, "")
}
func eAtoi(s string) int {
	n, err := strconv.Atoi(s)
	if err != nil {
		log.Fatal(err)
	}
	return n
}
func eAtoInt64(s string) int64 {
	n, err := strconv.ParseInt(s, 10, 64)
	if err != nil {
		log.Fatal(err)
	}
	return n
}

C++: #include <stdio.h>
#include <iostream>
#include <algorithm>
#include <math.h>
#include <stack>

using namespace std;

int minimum=-1;


int main(){
	int n,row,num,col;
	scanf("%d",&n);
	int table[n][n];
	for(int i=0;i<n;i++){
		for(int k=0;k<n;k++){
			table[i][k] = 0;
		}
	}

	for(int i=0;i<n;i++){
		scanf("%d %d",&row,&num);
		for(int k=0;k<num;k++){
			scanf("%d",&col);
			table[row-1][col-1]=1;
		}
	}

	for(int i=0;i<n;i++){
		for(int k=0;k<n-1;k++){
			printf("%d ",table[i][k]);
		}
		printf("%d\n",table[i][n-1]);
	}

    return 0;
}

C++: #include <iostream>

using namespace std;

int mat[100][100];

int main(){
  int n;
  cin >> n;
  for(int i=0;i<n;++i){
    int u,k;
    cin >> u >> k;
    for(int j=0;j<k;++j){
      int v;
      cin >> v;
      mat[u-1][v-1] = 1;
    }
  }

  for(int i=0;i<n;++i){
    for(int j=0;j<n;++j){
      cout << mat[i][j];
      if(j!=n-1){
        cout << " " ;
      }else{
        cout << endl ;
      }
    }
  }

  return 0;
}

C++: #include<iostream>

#define MAX 105

int main(){
  int n,u,k;
  int adj[MAX][MAX] = {{0}};
  int A[MAX][MAX] = {{0}};
  std::cin >> n;
  for(int i=0;i<n;i++){
    std::cin >> u >> k;
    for(int j=0;j<k;j++){
      std::cin >> adj[u-1][j];
    }
    adj[u][k] = -1;
  }
  //std::cout << "入力\n";

  for(int i=0;i<n;i++){
    int j=0;
    while(adj[i][j] != -1){
      A[i][adj[i][j]-1] = 1;
      j++;
    }
    std::cout << A[i][0] ;
    for(j=1;j<n;j++){
      std::cout << ' ' << A[i][j] ;
    }
    std::cout << '\n';
  }

  return 0;
}

C++: #include <bits/stdc++.h>
#define REP(i, n) for (int (i) = 0; (i) < (int)(n); i++) 
#define FOR(i, a, b) for(int (i) = a; (i) < (int)b; i++)
#define RREP(i, n) for(int (i)=((int)(n)-1); (i)>=0; i--)
#define RFOR(i, a, b) for(int (i) =((int)(b)-1); (i)>=(int)a; i--)
#define ALL(v) (v).begin(),(v).end()
#define MOD 1000000007
#define NIL -1
#define FI first
#define SE second
#define MP make_pair
#define PB push_back
#define SZ(x)  (int)x.size()
#define SP(x)  setprecision((int)x)


using namespace std ;
typedef long long ll;
typedef vector<int> vint;
typedef vector<vint> vvint;
typedef vector<string> vstr;
typedef pair<int, int> pii;
const int INF = 1e9;
const ll LINF = 1e18;
const double EPS = 1e-9;
const int dx[4] = {1, 0, -1, 0};
const int dy[4] = {0, 1, 0, -1};
ll gcd(ll a, ll b) {return b ? gcd(b, a % b) : a;} //最大公約数
ll lcm(ll a, ll b) {return a / gcd(a, b) * b;} //最小公倍数

//-------------------------------------------------
// 
void yes(){
  cout <<"Yes"<<endl ;
}
void no(){
  cout <<"No"<<endl ;
}
void out(vector<vector<int>> vec,int n){
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            cout << vec[i][j] ;
            if(j!=n-1){
                cout <<" " ;
            }
        }
        cout << endl ;
    }
}


//-------------------------------------------------
// メモ
/*






*/
//-------------------------------------------------


int main()
{
  cin.tie(0);
  ios::sync_with_stdio(false);
  int n ;
  cin >> n ;
  vector<vector<int>> graph(n,vector<int>(n,0)) ;
  REP(i,n){
      int ll ;
      cin >> ll ;
      int k ;
      cin >> k ;
      REP(j,k){
          int l ;
          cin >> l ;
          graph[ll-1][l-1] = 1 ;
      }
  }
  
  out(graph,n) ;
  
  
  
  return 0 ;
}

C++: #include <iostream>
#include <vector>
using namespace std;
#define MAXN 101

bool find(vector<int> v, int j){
    bool e = false;
    for(vector<int>::iterator it = v.begin(); it!=v.end(); ++it){
        if (*it == j) e = true;
    }
    return e;
}

int main(){
    vector<int> adj[MAXN];
    int n; cin >> n;
    for(int i=1; i<=n; ++i){
        int l, m; cin >> l >> m;
        for(int j=0; j<m; ++j){
            int k; cin >> k;
            adj[l].push_back(k);
        }
    }
    
    for(int i=1; i<=n; ++i){
        for(int j=1; j<=n; ++j){
            cout << (find(adj[i], j) ? 1 : 0 );
        }
        cout << endl;
    }
}

C++: #include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main(void){
    int n; cin >> n;
    bool graph[n][n];
    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++) graph[i][j]=false;
    }
    for(int i=0; i<n; i++){
        int v,k; cin >> v >> k;
        for(int j=0; j<k; j++){
            int w; cin >> w;
            graph[v-1][w-1]=true;
        }
    }

    for(int i=0; i<n; i++){
        for(int j=0; j<n; j++){
            if(j) cout << " ";
            cout << graph[i][j];
        }
        cout << endl;
    }
}

C++: #include <bits/stdc++.h>
using namespace std;
typedef long long ll;

int main(){

    ll N;
    cin >> N;

    vector<vector<ll> > G(N,vector<ll>(N,0));
    for (int i = 0; i < N; i++)
    {
        ll u,k;
        cin >> u >> k;
        for (int j = 0; j < k; j++)
        {
            ll v;
            cin >> v;
            G[u-1][v-1] = 1;
        }
    }
    for (int i = 0; i < N; i++)
    {
        for (int j = 0; j < N; j++)
        {
            cout << G[i][j] ;
            if( j != N-1 )
                cout << " ";
        }
        cout << endl;
        
    }
    
    




}

C++: #include<iostream>
#include<string>
#include<algorithm>
#include<utility>
#include<vector>
#include<map>
#include<set>
#include<tuple>
#include<stack>
#include<queue>
#include<functional>
#include<iterator>
#include<cmath>

using namespace std;

int main(){
	//ios::sync_with_stdio(false);
	//cin.tie(0);

	int n;
	cin >> n;

	int g[n][n] = {};
	for(int i=0;i<n;i++){
		int u, nume;
		cin >> u >> nume;

		int v;
		for(int j=0;j<nume;j++){
			cin >> v;
			g[u-1][v-1]= 1;
		}

	}
	for(int i=0;i<n;i++){
		for(int j=0;j<n;j++){
			cout << g[i][j];
			if(j != n-1) cout << " ";
		}
		cout << "\n";
	}
	
	return 0;
}