Go: package main

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

func getScanner(fp *os.File) *bufio.Scanner {
	scanner := bufio.NewScanner(fp)
	scanner.Split(bufio.ScanWords)
	scanner.Buffer(make([]byte, 500001), 500000)
	return scanner
}

func getNextString(scanner *bufio.Scanner) string {
	scanner.Scan()
	return scanner.Text()
}

func getNextInt(scanner *bufio.Scanner) int {
	i, _ := strconv.Atoi(getNextString(scanner))
	return i
}

func main() {
	fp := os.Stdin
	if len(os.Args) > 1 {
		fp, _ = os.Open(os.Args[1])
	}

	scanner := getScanner(fp)
	writer := bufio.NewWriter(os.Stdout)

	n := getNextInt(scanner)
	g := make([][]int, n)

	for i := 0; i < n; i++ {
		g[i] = make([]int, n)
	}

	for i := 0; i < n; i++ {
		u := getNextInt(scanner)
		k := getNextInt(scanner)
		u--
		for ii := 0; ii < k; ii++ {
			v := getNextInt(scanner)
			v--
			g[u][v] = 1
		}
		fmt.Fprintln(writer, joinint(g[u], " "))
	}

	writer.Flush()
}

func joinint(a []int, sep string) string {
	n := len(a)
	ss := make([]string, n)
	for i := 0; i < n; i++ {
		ss[i] = fmt.Sprintf("%d", a[i])
	}
	return strings.Join(ss, sep)
}

C++: #include <iostream>
using namespace std;

int n;
int M[101][101];
int main() {
    cin >> n;

    for (int i = 0; i < n; ++i) {
        int v, k;
        cin >> v >> k;
        for (int j = 0; j < k; ++j) {
            int s;
            cin >> s;
            M[v][s] = 1;
        }
    }

    for (int l = 1; l <= n; ++l) {
        for (int i = 1; i <= n; ++i) {
            if(i) cout << " ";
            cout << M[l][i];
        }
        cout << endl;
    }

    return 0;
}

C++: #include<bits/stdc++.h>
#define N 100
using namespace std;

int main(){
  int n,u,k,v;
  int data[N][N];
  cin >> n;

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

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

C++: #include <cmath>
#include <cstdio>
#include <cstring>
#include <cstdlib>
#include <climits>
#include <map>
#include <list>
#include <stack>
#include <queue>
#include <vector>
#include <string>
#include <sstream>
#include <fstream>
#include <iostream>
#include <algorithm>
using namespace std;

int main() {
	int n;
	scanf("%d", &n);
	
	int mat[n+1][n+1];
	for(int i = 0; i < n; i++){
		int u, k;
		scanf("%d %d", &u, &k);
		
		for(int j = 0; j <= n; j++){
			mat[u][j] = 0;
		}
		while(k--){
			int v;
			scanf("%d", &v);
			mat[u][v] = 1;
		}
	}
	
	for(int i = 1; i <= n; i++){
		for(int j = 1; j <= n; j++){
			printf("%d%c", mat[i][j], j==n ? '\n' : ' ');
		}
	}
	return 0;
}

C++: // A-Graph.cpp : 此檔案包含 'main' 函式。程式會於該處開始執行及結束執行。
//

#include <iostream>
#include<string>
using namespace std;
int main()
{
	int n = 0;
	cin >> n;
	int **arr = new int *[n];
	for (int i = 0; i < n; i++)
	{
		arr[i] = new int[n];
	}
	for (int i = 0; i < n; i++)
	{
		for (int j = 0; j < n; j++)
		{
			arr[i][j] = 0;
		}
	}
	int n2 = n;
	int x = 0;
	while (n--)
	{
		cin.ignore(100, '\n');
		char *str = new char[n2 * 2];
		cin.get(str, n2 * 2);
		int y = 4;
		for (int k = 0; k < str[2] - '0'; k++)
		{
			int pos = str[y] - '0';
			pos--;
			y = y + 2;
			arr[x][pos] = 1;
		}
		x++;
	}
	for (int i = 0; i < n2; i++)
	{
		for (int j = 0; j < n2; j++)
		{
			cout << arr[i][j] << " ";
		}
		cout << endl;
	}
	return 0;
}

C++: #include<iostream>
using namespace std;

int main()
{
	int M[100][100];
	int n, u, k, v;
	cin >> n;
	for(int i = 0; i < n; i++)
		for(int j = 0; j < n; j++)
			M[i][j] = 0;
	for(int i = 0; i < n; i++)
	{
		cin >> u >> k;
		u--;
		for(int i = 0; i < k; i++)
		{
			cin >> v;
			v--;
			M[u][v] = 1; 
		}
	}
	
	for(int i = 0; i < n; i++)
	{
		for(int j = 0; j < n; j++)
		{
			if(j == 0)
			cout << M[i][j];
			else
			{
				cout << " " << M[i][j];
			}
		}
		cout << endl;
	}
}

C++: #include <bits/stdc++.h>
using namespace std;
typedef long long ll;
// Welcome to my source code!

const int N = 100;

int main() {
    int M[N][N] = {};
    int n, u, k, v;
    cin >> n;
    for (int i = 0; i < n; i++) {
        cin >> u >> k;
        u--;
        for (int j = 0; j < k; j++) {
            cin >> v;
            v--;
            M[u][v] = 1;
        }
    }
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (j) cout << ' ';
            cout << M[i][j];
        }
        cout << endl;
    }
}

C++: #include <iostream>
using namespace std;

int main(){
	int i,k,l,n,m;
	int a[100][100];
	int j[100];
	cin >> n;
	for(m=0;m<100;m++){
		for(l=0;l<100;l++){
			a[m][l]=0;//初期化
		}
	}

	for( m=0 ; m<n ; m++ ){
		cin >> i >> k ;
		for(l=0;l<k;l++){
			cin >>j[l];
			a[i-1][j[l]-1] = 1;//情報読み込みaij→a(i-1)(j-1)
		}
	}
	for( m=0 ; m<n ; m++ ){
		for(l=0;l<n-1;l++){
			cout<<a[m][l]<<" ";
		}
			cout<<a[m][n-1]<<endl;
	}
}

C++: #include <iostream>
using namespace std;
#define N (100)

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

C++: #include <iostream>
#include <algorithm>
#include <string>
#include <vector>
#include <cstdio>
#include <cmath>
#include <cstdlib>
#include <cstring>
#include <stack>
#include <queue>
#include <set>
#include <map>
#include <list>
#include <utility>
#include <ctime>
#define INF 1000000000
#define LINF 9000000000000000000
#define mod 1000000007
 
#define rep(i,n) for(int i=0;i<int(n);i++)
#define rrep(i,n) for(int i=(n);i>=0;i--)
#define REP(i,a,b) for(int i=(a);i<int(b);i++)
#define all(x) (x).begin(),x.end()
#define vector_rsort(x) sort(all(x));reverse(all(x))
#define array_rsort(x,n) sort(x,x+n);reverse(x,x+n);
#define pb push_back
#define mp make_pair
#define MOD(x) (x%(mod))

#define Yes cout<<"Yes"<<endl
#define YES cout<<"YES"<<endl
#define No cout<<"No"<<endl
#define NO cout<<"NO"<<endl
using namespace std;
 
typedef long long ll;
typedef unsigned long long ull;
typedef vector<int> vi;
typedef pair<int,int> pi;
 
int dx[4]={1,0,-1,0};
int dy[4]={0,1,0,-1};
bool debug=false;
/*---------------------------------------------------*/

int n,u,k,v;
int g[105][105];

int main(){
  scanf("%d",&n);

  rep(i,n){
    scanf("%d%d",&u,&k);
    rep(i,k){
      scanf("%d",&v);
      g[u][v]=1;
    }
  }
  
  REP(i,1,n+1){
    printf("%d",g[i][1]);
    REP(j,2,n+1){
      printf(" %d",g[i][j]);
    }
    printf("\n");
  }
  return 0;
}

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

using namespace std;

const int N_MAX = 100;

// グラフ
// 隣接リスト表現の有効グラフGの隣接行列を出力

int main(int argc, char *argv[])
{
    cin.tie(0);
    ios::sync_with_stdio(false);

    int n;
    cin >> n;

    int G[100][100] = { 0 };

    for (int i = 0; i< n; i++)
    {
        int u, k;
        cin >> u; // 頂点番号
        cin >> k; // 出次数
        for (int i = 0; i < k; i++)
        {
            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) cout << " ";
            cout << G[i][j];
            if (j != n - 1)
                cout << " ";
        }
        cout << endl;
    }
    return 0;
}