Go: package main

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

// I/O
type Scanner struct {
	sc *bufio.Scanner
}

func NewScanner() *Scanner {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	sc.Buffer(make([]byte, 1024), int(1e+9))
	return &Scanner{sc}
}

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

func (s *Scanner) nextInt() int {
	i, e := strconv.Atoi(s.nextStr())
	if e != nil {
		panic(e)
	}
	return i
}

func (s *Scanner) nextFloat() float64 {
	f, e := strconv.ParseFloat(s.nextStr(), 64)
	if e != nil {
		panic(e)
	}
	return f
}

func (s *Scanner) nextRuneSlice() []rune {
	return []rune(s.nextStr())
}

func (s *Scanner) nextIntSlice(n int) []int {
	res := make([]int, n)
	for i := 0; i < n; i++ {
		res[i] = s.nextInt()
	}
	return res
}

func (s *Scanner) nextFloatSlice(n int) []float64 {
	res := make([]float64, n)
	for i := 0; i < n; i++ {
		res[i] = s.nextFloat()
	}
	return res
}

// Arithmetic
func max(nums ...int) int {
	m := nums[0]
	for _, i := range nums {
		if m < i {
			m = i
		}
	}
	return m
}

func min(nums ...int) int {
	m := nums[0]
	for _, i := range nums {
		if m > i {
			m = i
		}
	}
	return m
}

func abs(x int) int {
	if x > 0 {
		return x
	}
	return -x
}

func pow(x, y int) int {
	res := 1
	for i := 0; i < y; i++ {
		res *= x
	}
	return res
}

func ceil(a, b int) int {
	if a%b == 0 {
		return a / b
	} else {
		return a/b + 1
	}
}

// Sort
type RuneSlice []rune

func (a RuneSlice) Len() int           { return len(a) }
func (a RuneSlice) Less(i, j int) bool { return a[i] < a[j] }
func (a RuneSlice) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }

// Main
func main() {
	sc := NewScanner()
	wtr := bufio.NewWriter(os.Stdout)
	N := sc.nextInt()
	g := make([][]int, N)
	for i, _ := range g {
		g[i] = make([]int, N)
	}
	for i := 0; i < N; i++ {
		u, k := sc.nextInt(), sc.nextInt()
		for j := 0; j < k; j++ {
			g[u-1][sc.nextInt()-1] = 1
		}
	}

	for _, r := range g {
		for i, num := range r {
			if i > 0 {
				fmt.Fprint(wtr, " ")
			}
			fmt.Fprint(wtr, num)
		}
		fmt.Fprintln(wtr)
	}
	wtr.Flush()
}

C++: #include <iostream>
#include <queue>
#include <stack>
#include <cstdio>
#include <vector>
#include <sstream>
#include <stdio.h>
#include<cstdio>

#include<string>
#include<cmath>
#include<map>
#include<cstdlib>
#include<deque>
#include<queue>
#include<climits>
#include<cstring>
using namespace std;

const int N_MAX = 1000000;

int main(){
  int N;
  cin >> N;

  // table
  int** table = new int*[N];
  for(int i=0; i<N; i++){
    table[i] = new int[N];
    memset(&table[i][0], 0, N*sizeof(table[i][0]));
    // &table[i][0] can be table[i] because it only needs head address.
    
    //[..., [int, int,int], ...]
    // memset(start_addr, 0, delta_arr) fills
    // start_addr to (start_addr + delta_arr) by 0.
    // table[i] refers to the first addr of table[i],
    // for each integer to be filled by 0, size of the element
    // (not table[i]) should be given.
  }
  
  for(int i=0; i<N; i++){
    int row_num, k;
    cin >> row_num >> k;

    row_num--;
    
    for(int j=0; j<k; j++){
      int col_num;
      cin >> col_num;
      col_num--;
      table[row_num][col_num] = 1;
    }
  }

  //print table
  for(int i=0; i<N; i++){
    for(int j=0; j<N; j++){
      cout << table[i][j];
      if(j!=N-1) cout << " ";
      else cout << endl;
    }
  }
  
  for(int i=0; i<N; i++){
    delete[] table[i];
  }
  delete[] table;
  
  return 0;
}

C++: #include<iostream>
using namespace std;
static const int N=100;

int main( void ){
  int M[N][N];
  int n,m,l,k;
 
  cin >> n;

  for( int i = 0 ; i < n ; i++ ){
    for( int j = 0 ; j < n ; j++ ){
      M[i][j];
    }
  }
  for( int i = 0 ; i < n ; i++ ){
    cin >> m >> l;
    m--;
    for( int j = 0 ; j < n ; j++ ){
      cin >> k;
      k--;
      M[m][k] = 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>
using namespace std;
static const int N = 100;

int main(){
int M[N][N];
int n, u, k, v;
    // Here you
    
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>
using namespace std;
int main() {
    int n,p,q;
    cin>>n;
    int A[100][100]={0};
    for (int i=0;i<n;i++){
        cin>>q>>p;
        if (p==0)
            continue;
        for (int j=0;j<p;j++){
            int x;
            cin>>x;
            A[q][x-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;
    }
    return 0;
}

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

int n;
int k;


int main(){
  int adj[n+10][n+10];
  int num;
  cin>>n;
  int rin;
  int i=0,j=0;
  for(i=0;i<n;i++){
    for(j=0;j<n;j++){
      adj[i][j]=0;
    }
  }
  for(i=0;i<n;i++){
    cin>>num>>k;
    num--;
    for(j=0;j<k;j++){
      cin>>rin;
      rin--;
      adj[num][rin]=1;
    }
  }
  for(i=0;i<n;i++){
    for(j=0;j<n;j++){
      if(j)cout<<" ";
      cout<<adj[i][j];
    }
    cout<<endl;
  }
  return 0;
}

C++: #include <iostream>
#include <queue>
#include <stack>
#include <cstdio>
#include <vector>
#include <sstream>
#include <stdio.h>
#include<cstdio>

#include<string>
#include<cmath>
#include<map>
#include<cstdlib>
#include<deque>
#include<queue>
#include<climits>
#include<cstring>
using namespace std;

const int N_MAX = 1000000;

int main(){
  int N;
  cin >> N;

  // table
  int** table = new int*[N];
  for(int i=0; i<N; i++){
    table[i] = new int[N];
    memset(&table[i][0], 0, N*sizeof(table[i][0]));
    // &table[i][0] can be table[i] because it only needs head address.
    
    //[..., [int, int,int], ...]
    // memset(start_addr, 0, delta_arr) fills
    // start_addr to (start_addr + delta_arr) by 0.
    // table[i] refers to the first addr of table[i],
    // for each integer to be filled by 0, size of the element
    // (not table[i]) should be given.
  }
  
  for(int i=0; i<N; i++){
    int row_num, k;
    cin >> row_num >> k;

    row_num--;
    
    for(int j=0; j<k; j++){
      int col_num;
      cin >> col_num;
      col_num--;
      table[row_num][col_num] = 1;
    }
  }

  //print table
  for(int i=0; i<N; i++){
    for(int j=0; j<N; j++){
      cout << table[i][j] << " ";
    }
    if(i != N-1) cout << endl;
  }
  
  for(int i=0; i<N; i++){
    delete[] table[i];
  }
  delete[] table;
  
  return 0;
}

C++: #include <iostream>
#include <cstring>
#include <cstdlib>
#include <sstream>
#include <stack>
#include <queue>
#include <list>
#include <stdio.h>
#include <algorithm>
#define MAX 100000
using namespace std;
typedef long long ll;
int map[255][255];
int main()
{	
	int n;
	cin>>n;
	for(int i=1;i<=n;i++)
		for(int j=1;j<=n;j++)
		{
			map[i][j]=0;
		}
	for(int i=0;i<n;i++)
	{
		int cur,k,u;
		cin>>cur>>k;
		while(k--)
		{
			cin>>u;
			map[cur][u]=1;
		}
	}
	for(int i=1;i<=n;i++)
		for(int j=1;j<=n;j++)
		{
			if(j!=n) cout<<map[i][j]<<" ";
			else cout<<map[i][j]<<endl;
		}
	return 0;
}