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 <stdio.h>
#include <string.h>

int main(){
  int Adj[101][101],n,v,i,j,u,k;
  memset(Adj, 0, 101*101*sizeof(int));
  scanf("%d",&n);
  for(i=1;i<=n;i++){
    scanf("%d%d",&u,&k);
    for(j=0;j<k;j++){
      scanf("%d",&v);
      Adj[u][v]=1;
    }
  }
  for(i=1;i<=n;i++){
    for(j=1;j<=n;j++){
      if(j!=1)printf(" ");
      printf("%d",Adj[i][j]);
    }
    printf("\n");
  }
  
  return 0;
}

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

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++: #define _CRT_SECURE_NO_WARNINGS

#include<fstream>
#include<iostream>
#include<string>
#include<iomanip>
#include<list>
#include<math.h>
#include<stack>
#include<queue>
#include<vector>
#include<algorithm>
#include<utility>

using namespace std;

int main(){
	int g[100][100];
	int n;
	cin >> n;
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) {
			g[i][j] = 0;
		}
	}
	for (int i = 0; i < n; i++) {
		int u, k, v;
		cin >> u >> k;
		for (int j = 0; j < k; j++) {
			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++: #include<iostream>
using namespace std;
static const 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 <bits/stdc++.h>
using namespace std;
static const int N=100;

int main(){
  int m[N][N],n,u,k,v,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--;
    for(j=0;j<k;j++){
      cin >> v;
      v--;
      m[u][v]=1;
    }
  }

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

C++: //
#if 0

#endif // 0
#include<iostream>
#define MAX 100
using namespace std;
int matri[MAX][MAX];

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

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

int main(){
	int n,m,l,i,j,p;
	cin >> n;
	int f[100][100];
	for ( i = 0; i < n; i++){
		cin >> m;
		cin >> p;
		for ( j = 0; j < p; j++){
			cin >> l;
			f[m-1][l-1] = 1;
		}
	}
	for ( i = 0; i < n; i++){
		for ( j = 0; j < n-1; j++){
			cout << f[i][j] << " ";
		}
		cout << f[i][n-1] << endl;
	}
}

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

#define REP(i,n) for(int i=0;i<n;++i)

const int MAX_N = 100;

int main() {
  int n, u, k, v, G[MAX_N][MAX_N] = {0};
  cin >> n;
  REP(i, n) {
    cin >> u >> k;
    REP(j, k) {
      cin >> v;
      G[u - 1][v - 1] = 1;
    }
  }
  REP(i, n) {
    REP(j, n) {
    if(j) cout << ' ';
    cout << G[i][j];
    }
    cout << endl;
  }
  return 0;
}

C++: #include<stdio.h>
#define N 200

int main(){
  int M[N][N];
  int n,u,k,v;

  scanf("%d",&n);

  for(int i=0;i<n;i++){
    for(int j;j<n;j++)
      M[i][j]=0;
    
  }
  for(int i=0;i<n;i++){
    scanf("%d%d",&u,&k);
    u--;
    for(int j=0;j<k;j++){
      scanf("%d",&v);
      v--;
      M[u][v]=1;
      
    }
      
  }
  for(int i=0;i<n;i++){
    for(int j=0;j<n;j++){
      if(j)printf(" ");
      printf("%d",M[i][j]);}
    printf("\n");


    }

  return 0;
  }

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

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

	static int M[101][101];
	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;
			M[u][v] = 1;
		}	
	}

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

C++: #include <iostream>
#include <vector>
#include <cstdio>
#include <cstdlib>
#include <cstring>

using namespace std;

using Adjacents = vector<int>;
using Vertexes = vector<Adjacents>;

int main(void) {

    int N;
    scanf("%d", &N);

    Vertexes vs;
    vs.resize(N);
    for (int i = 0, id, num; i < N; ++i) {
        scanf("%d %d", &id, &num);
        for (int j = 0, vert; j < num; ++j) {
            scanf("%d", &vert);
            vs[id-1].push_back(vert);
        }
    }

    int **matrix = new int*[N];
    for (int i = 0; i < N; ++i) {
        matrix[i] = new int[N];
        memset(matrix[i], 0, sizeof(int)*N);
        for (int j = 0; j < vs[i].size(); ++j) {
            matrix[i][vs[i][j] - 1] = 1;
        }
    }

    for (int i = 0; i < N; ++i) {
        for (int j = 0; j < N; ++j) {
            printf("%2d", matrix[i][j]);
        }
        delete[] matrix[i];
        printf("\n");
    }
    delete[] matrix;

    return 0;
}