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 <iostream>

using namespace std;

int main(){
    int n, k, u, v, i, j;
    cin >> n;
    int m[n+1][n+1];
    for(i = 1; i <= n; i++){
        for(j = 1; j <= n; j++) m[i][j] = 0;
    }
    for(i = 1; i <= n; i++){
        cin >> u >> k;
        for(j = 1; j <= k; j++){
            cin >> v;
            m[u][v] = 1;
        }
    }
    for(i = 1; i <= n; i++){
        for(j = 1; j <= n; j++){
            if(j == n) cout << m[i][j] << endl;
            else cout << m[i][j] << " ";
        }
    }
    return 0;
}

C++: #include <iostream>

using namespace std;

static const int N = 100;

int main()
{
    int M[N][N];    // 0オリジンの隣接行列
    int n, u, k, v;
    int i, j;

    cin >> n;

    for (i = 0; i < n; i++) {
        for (j = 0; j < n; j++) M[i][j] = 0;
    }

    for (i = 0; i < n; i++)
    {
        cin >> u >> k;
        u--;        // 0オリジンへ変換
        for (j = 0; j < k; j++) {
            cin >> v;
            v--;    // 0オリジンへ変換
            M[u][v] = 1;    // u と v の間に辺を張る
        }
    }

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

    return 0;
}

C++: #include <vector>
#include <iostream>

using namespace std;

int N;

int main()
{
	cin >> N;

	vector<vector<bool> > M(N, vector<bool>(N));

	int u, k, v;

	for (int i = 0; i < N; i++)
	{
		cin >> u >> k;

		for (int i = 0; i < k; i++)
		{
			cin >> v;

			M[u - 1][v - 1] = true;
		}
	}

	for (int i = 0; i < N; i++)
	{
		for (int j = 0; j < N; j++)
		{
			cout << M[i][j];

			if (j == N - 1)
			{
				cout << ' ';
			}
		}

		cout << endl;
	}

	return 0;
}

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

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

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

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

    return 0;
}

C++: #define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <limits.h>
using namespace std;

int a[101][101];
int main(){
	int n; scanf("%d",&n);
	for (int i = 1; i <= n; ++i){
		int u, k; scanf("%d %d",&u,&k);
		int tmp;
		while(k--){
			scanf("%d",&tmp);
			a[u][tmp] = 1;
		}
	}
	for (int i = 1; i <= n; ++i){
		for (int j = 1; j <= n; ++j){
			if (j != 1) cout << ' ';
			cout << a[i][j];
		}
		cout << '\n';
	}
}

C++: #include <iostream>
#include <vector>
#include <cassert>
#include <algorithm>
#include <functional>

using namespace std;
    
#include <iostream>
#include <vector>
#include <cassert>
#include <algorithm>
#include <functional>
#include <cmath>
#include <iomanip>
#include <limits>
#include <bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin >> n;
    vector<vector<int>> vec(n);
    vector<int> SIZE;
    for(int i=0;i<n;i++){
        int x;
        cin >> x;
        int num;
        cin >> num;
        SIZE.push_back(num);
        for(int j = 0;j< num;j++){
            int y;
            cin >> y;
            vec[x-1].push_back(y-1) ;
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            bool hantei=0;
            for(int k=0;k<SIZE[i];k++){
                if(vec[i][k]==j) {cout << 1 <<" "; hantei=1;}
            }
            if(hantei==0) cout <<0<<" ";
        }cout << endl;
    }cout << endl;
}

C++: #include <stdio.h>
#include <iostream>
#include <algorithm>
#include <vector>
#include <math.h>
#include <string>
#include <string.h>
#include <queue>
#define FOR(i,a,b) for (int i=(a);i<(b);i++)
#define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--)
#define REP(i,n) for (int i=0;i<(n);i++)
#define RREP(i,n) for (int i=(n)-1;i>=0;i--)
int N,W;
int vx[]={1,0,-1,0};
int vy[]={0,1,0,-1};
int mt[102][102];
using namespace std;
void solve(){
    cin >> N ;
    int E,K;
    memset (mt,0,102*102);
    REP(i,N){
      cin >> E >> K;
      REP(j,K)
      {
        cin >> E;
        mt[i][E-1] = 1 ;
      }
    }
    REP(x,N){
      REP(y,N){
        cout << mt[x][y] ;
        if(!(x==N-1&&y==N-1))cout << " ";
      }
      if(x!=N-1)cout << endl;
    }
}
int main(){

    solve();
}

C++: #include <bits/stdc++.h>
using namespace std;
typedef pair<int,int> p;


int main(void){
  int n,a,b,c;
  cin >> n;
  int v[n][n];
  for(int i=0;i<n;i++){
    cin >> a >> b;
    for(int j=0;j<b;j++){
      cin >> c;
      v[a-1][c-1]=1;
    }
  }
  for(int i=0;i<n;i++){
    for(int j=0;j<n;j++){
      if(v[i][j]!=1)cout << 0 << ' ';
      else cout << v[i][j] << ' ';
    }
    cout << endl;
  }
  return 0;
}

C++: #include <bits/stdc++.h>

#define NIL NULL
#define INF 1000000001

using namespace std;

int main(){
    int num_node;
    int node_ind,node_deg,adj_node;
    scanf("%d",&num_node);

    vector<vector<int> > adj(num_node,vector<int>(num_node,0));

    for(int i = 0; i < num_node;i++ ){
        scanf("%d %d",&node_ind,&node_deg);
        for(int j = 0;j < node_deg;j++){
            scanf("%d",&adj_node);
            adj[node_ind-1][adj_node-1] = 1;
        }
    }

    for(int i = 0;i < num_node;i++){
        for(int j = 0;j < num_node-1;j++){
            printf("%d ",adj[i][j]);
        }
        printf("%d\n",adj[i][num_node-1]);
    }
    return 0;   
}