Go: package main

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

//util
var sc = bufio.NewScanner(os.Stdin)

func nextStr() string {
	sc.Scan()
	return sc.Text()
}

func nextInt() int {
	sc.Scan()
	i, e := strconv.Atoi(sc.Text())
	if e != nil {
		panic(e)
	}
	return i
}

func printList(list []int) {
	n := len(list)
	buf := bufio.NewWriter(os.Stdout)
	for _, v := range list[0 : n-1] {
		buf.Write([]byte(fmt.Sprintf("%d ", v)))
	}
	buf.Write([]byte(fmt.Sprintf("%d\n", list[n-1])))
	buf.Flush()
}

func max(a, b int) int {
	if a > b {
		return a
	} else {
		return b
	}
}

func min(a, b int) int {
	if a > b {
		return b
	} else {
		return a
	}
}

//solve

const MAX = 100

var n int
var A [MAX + 1][MAX + 1]int

func main() {
	sc.Split(bufio.ScanWords)
	n = nextInt()
	for i := 0; i < n; i++ {
		u, k := nextInt(), nextInt()
		A[u-1][u-1] = 0

		//fmt.Println(u, k)
		if k > 0 {
			for j := 0; j < k; j++ {

				v := nextInt()
				A[u-1][v-1] = 1

			}
		}

	}

	for i := 0; i < n; i++ {
		printList(A[i][0:n])
	}

}

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 = 0; j < n+1; j++)
	{
	  cout << ln[i][j] << " ";
	}
      cout << endl;
    }
  for (int i = 0; i < n; i++)
    {
      for (int j = 2; j < n; j++)
	{
	  cout << ln[i][j] << " ";
	  if (ln[i][j] != 0 )
	    {
	      m[i][ln[i][j]-1] = 1;
	    }
	}
      cout << endl;
    }
  for (int i = 0; i < n; i++)
    {
      for (int j = 0; j < n; j++)
	{
	  cout << m[i][j] << " ";
	}
      cout << endl;
    }
  return 0;
}

C++: #include<iostream>
#include<cstdio>
#define Lens 105
using namespace std;
int N;
int A[Lens][Lens];

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

C++: #include<iostream>
using namespace std;
typedef struct{
  int A[1000];
}node;
node T[105];
int main(){
  int n;
  int num;
  int son;
  int z;
  cin>>n;
  for(int i=0;i<n;i++){
    cin>>num;
    cin>>son;
    for(int j=0;j<son;j++){
      cin>>z;
      T[num].A[z]=1;
      }
  }
  for(int i=1;i<=n;i++){
    for(int j=1;j<=n;j++){
      if(j==1)cout<<T[i].A[j];
      else cout<<" "<<T[i].A[j];
    }
    cout<<endl;
  }
  return 0;
}

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

int main(void){
  int m, a[100][100];
  int b[100][100];

  cin >> m;
  cout << m << "\n";

  for(int i=0; i<m; i++){
    cin >> a[i][0];
    cin >> a[i][1];

    for(int j=2; j<a[i][1]+2; j++){
      cin >> a[i][j];
      b[i][ a[i][j]-1 ] = 1;
    }
  }

  for(int i=0; i<m; i++){
    for(int j=0; j<m; j++){
      cout << b[i][j] << " ";
    }
    cout << "\n";
  }
  return 0;
}

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)
        cout << endl;
    }

    return 0;
}