Go: package main

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

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	n, err := nextInt(sc)
	if err != nil {
		panic(err)
	}
	matrix := make([][]int, n)
	for i := 0; i < n; i++ {
		matrix[i] = make([]int, n)
		id, err := nextInt(sc)
		if err != nil {
			panic(err)
		}
		vNum, err := nextInt(sc)
		if err != nil {
			panic(err)
		}
		for j := 0; j < vNum; j++ {
			v, err := nextInt(sc)
			if err != nil {
				panic(err)
			}
			matrix[id-1][v-1] = 1
		}
	}
	for i := 0; i < n; i++ {
		printRow(matrix[i])
	}
}

func printRow(row []int) {
	xs := make([]string, len(row))
	for i := 0; i < len(row); i++ {
		xs[i] = strconv.Itoa(row[i])
	}
	fmt.Println(strings.Join(xs, " "))
}

func nextInt(sc *bufio.Scanner) (int, error) {
	sc.Scan()
	return strconv.Atoi(sc.Text())
}

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


static const int MAX_NUM = 100 + 1;

int main(void)
{
    int i, j;
    int num;
    int elem;
    int elemnum;
    int tmp;
    int matrix[MAX_NUM][MAX_NUM] = {0};


    scanf("%d", &num);
    for (i = 1; i <= num; i++) {
        scanf("%d %d", &elem, &elemnum);
        for (j = 1; j <= elemnum; j++) {
            scanf("%d", &tmp);
            matrix[elem][tmp] = 1;
        }
    }

    for (i = 1; i <= num; i++) {
        printf("%d", matrix[i][1]);
        for (j = 2; j <= num; j++) {
            printf(" %d", matrix[i][j]);
        }
        printf("\n");
    }

    return 0;
}

C++: #include <iostream>

using namespace std;



int main() {

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

	int n;

	cin >> n;

	int u, k, v;

	for ( int i = 0; i < n; i++ ) {

		cin >> u >> k;

		for ( int j = 0; j < k; j++ ) {

			cin >> v;

			a[u - 1][v - 1] = 1;

		}

	}

	for ( int i = 0; i < n; i++ ) {

		for ( int j = 0; j < n; j++ ) {

			cout << a[i][j];

			if ( j != n - 1 ) cout << " ";

		}

		cout << endl;

	}

}

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) {
            cout << M[l][i];
            if (l != n && i != n) cout << " ";
        }
        cout << endl;
    }

    return 0;
}

C++: #include<iostream>
#include<vector>
using namespace std;
int main() {
	int point_number;
	cin >> point_number;
	vector<vector<int>>v(point_number);
	for (int i = 0;i < point_number;i++) {
		int point_name;
		cin >> point_name;
		v[i].push_back(point_name);
		int adj_point_number;
		cin >> adj_point_number;
		v[i].push_back(adj_point_number);
		for (int j = 0;j < adj_point_number;j++) {
			int adj_point_name;
			cin >> adj_point_name;
			v[i].push_back(adj_point_name);

		}

	}
	vector<vector<int>>ans(point_number, vector<int>(point_number));
	for (int i = 0;i < point_number;i++) {
		for (int j = 0;j < v[i][1];j++) {
			ans[v[i][0] - 1][v[i][j + 2] - 1] = 1;

		}


	}
	for (int i = 0;i < point_number;i++) {
		for (int j = 0;j < point_number;j++) {
			if (j == 0) {
				cout << ans[i][j];
			}
			else {
				cout << " " << ans[i][j] ;
			}
			
		}
		cout << endl;
	}
}

C++: #include <iostream>

using namespace std;

const static int N=100;

int main()
{
    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>

int main() {
	int node_num, adj[100][100];

	std::cin >> node_num;

	for (int i = 0; i < node_num; i++)
		for (int j = 0; j < node_num; j++)
			adj[i][j] = 0;

	for (int i = 0; i < node_num; i++) {
		int node, num;
		std::cin >> node >> num;
		for (int j = 0; j < num; j++) {
			int n;
			std::cin >> n;
			adj[node][n - 1] = 1;
		}
	}

	for (int i = 0; i < node_num; i++) {
		for (int j = 0; j < node_num; j++) {
			std::cout << adj[i][j] << (j != node_num - 1 ? " ":"");
		}
		std::cout << std::endl;
	}
}

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;
	
	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--; // 0 オリジンへ変換
		for ( int 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 ( 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++: //16D8103012G 三品海渡
#include<iostream>
#include<vector>
using namespace std;
int main() {
  int n;
  cin >> n;
  vector<vector<int>> ln(n, vector<int>(n+1, 0));
  vector<vector<int>> m(n,vector<int>(n,0));
  vector<int> rem(n, 0);
  for (int i = 0; i < n; i++)
    {
      cin >> ln[i][0];
      cin >> ln[i][1];
      for (int j = 2; j < ln[i][1]+2; j++)
	{
	  cin >> ln[i][j];
	}
    }
  for (int i = 0; i < n; i++)
    {
      for (int j = 2; j < n; j++)
	{
	  if (ln[i][j] != 0 )
	    {
	      m[i][ln[i][j]-1] = 1;
	    }
	}
    }
  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<iostream>
using namespace std;

#define WHITE 0   // not visited yet.
#define GRAY 1    // visited, but not completed.
#define BLACK 2   // search completed.

int G[101][101];        // adjacency list.
int color[101];         // visited/completed sign.
int n;                  // size.
int d[101], f[101], t;  // first visit time/complete time.

void search_loop(int i) 
{
    int next;
    d[i] = ++t;
    color[i] = GRAY;  // first visited.

    for(next = 1; next <= n; next++){
        if(i == next && G[i][i] > 0) break;   // if self-looped, through.
        if(G[i][next] > 0 && color[next] == WHITE){  // if not visited yet, visit.
            search_loop(next);
        }
    }
    f[i] = ++t;
    color[i] = BLACK;  // completed. 

    return;
}

void dfs()
{
    int i;
    for(i = 1; i <= n; i++) color[i] = WHITE;  // initialize.
    t = 0;

    for(i = 1; i <= n; i++) if(color[i] == WHITE) search_loop(i);

    for(i = 1; i <= n; i++) cout << i << " " << d[i] << " " << f[i] << endl;

    return ;
}

int main()
{
    int i, j, k, e;
    cin >> n;
    for(i = 1; i <= n; i++){
        for(j = 1; j <= n; j++){ G[i][j] = 0; } }

    do{
        cin >> i >> e;
        for(j = 1; j <= e; j++){
            cin >> k;
            G[i][k] = 1;
        }
    }while(i < n);

    dfs();
    return 0;
}

C++: #include<iostream>
using namespace std;
int map[101][101];
int main(void) {
	int n;
	cin >> n;
	for (int i = 0; i < n; i++) {
		int a;
		cin >> a;
		int m;
		cin >> m;
		for (int j = 0; j < m; j++) {
			int b;
			cin >> b;
			map[a][b] = 1;
		}
	}
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= n; j++) {
			if (j != 1) cout << " ";
			cout << map[i][j];
		}
		cout << endl;
	}
}

C++: #include <iostream>
#define N 100

using namespace std;

int main(int argc, char const *argv[]) {
    int n, u, k, v;
    int A[N][N] = {0};

    cin >> n;
    for (int j = 0; j < n; j++){
        cin >> u >> k;
        for (int i = 0; i < k; i++){
            cin >> v;
            A[u-1][v-1] = 1;
        }
    }
    for (int i = 0; i < u; i++){
        for (int j = 0; j < u - 1; j++){
            cout << A[i][j] << ' ';
        }
        cout << A[i][u-1] << endl;
    }
    return 0;
}