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>
using namespace std;

int a[100][100];
int N,u,k,col;
int main() {
	cin >> N;
	for(int i=0; i<N; ++i) {
		cin >> u >> k;
		for(int l=0; l<k; ++l) {
			cin >> col;
			a[u-1][col-1] = 1;
		}
		cout << a[i][0];
		for(int l=1; l<N; ++l) {
			cout << " " << a[i][l];
		}
		cout << endl;
	}
}

C++: #include <bits/stdc++.h>
using namespace std;
#define Rep(i, n) for (int i = 0; i < (int)(n); i++)
#define BitRep(i, n) for (int i = 0; i < (int)(1 << n); i++)
#define Sum(vec) accumulate(vec.begin(), vec.end(), 0)
#define Sort(vec) sort(vec.begin(), vec.end())
#define Reverse(vec) reverse(vec.begin(), vec.end())
#define Next_permutation(vec) next_permutation(vec.begin(), vec.end())

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;
#define int long long
signed main(){
  int n;
  cin>>n;
  int e[n][n];
  memset(e,0,sizeof(e));
  for(int i=0,u,k;i<n;i++){
    cin>>u>>k;
    for(int j=0,v;j<k;j++){
      cin>>v;
      e[u-1][v-1]=1;
    }
  }
  
  for(int i=0;i<n;i++)
    for(int j=0;j<n;j++)
      cout<<e[i][j]<<" \n"[j==n-1];
  return 0;
}

C++: N = int(raw_input())
A = [0] * N
for i in range(N):
  A[i] = [0] * N

for line in sys.stdin:
  values = line.split()
  u = int(values[0]) - 1
  k = int(values[1])
  nodes = values[2:]
  for i in range(int(k)):
    v = int(nodes[i]) - 1
    A[u][v] = 1

for i in range(N):
  print " ".join([str(x) for x in A[i]])

C++: #include<cstdio>

#define MAX_N 100

int n, u, k, v;
int adj[MAX_N][MAX_N];

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

	for(int i = 0; i < n; i++){
		for(int j = 0; j < n; j++){
			adj[i][j] = 0;
		}
	}

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

	for(int i = 0; i < n; i++){
		for(int j = 0; j < n; j++){
			printf("%d", adj[i][j]);
			if(j != n - 1){
				printf(" ");
			}
			else if(j == n - 1){
				printf("\n");
			}
		}
	}

	return 0;
}

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

int v[N + 1][N + 1];

int main()
{
    int n;
    std::cin >> n;
    for (int i = 1; i <= n; ++i)
    {
        for (int j = 1; j <= n; ++j)
        {
            v[i][j] = 0;
        }
    }
    for (int i = 0; i < n; ++i)
    {
        int u, k;
        std::cin >> u >> k;
        for (int j = 0; j < k; ++j)
        {
            int t;
            std::cin >> t;
            v[u][t] = 1;
        }
    }
    for (int i = 1; i <= n; ++i)
    {
        for (int j = 1; j <= n; ++j)
        {
            if (j > 1)
            {
                printf(" ");
            }
            std::cout << v[i][j];
        }
        std::cout << "\n";
        ;
    }
}

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

int main(){
    int i,j,n,doudemoii,count,huga;
    cin >> n;
    int ans[n+1000][n+1000];
    for(i = 0; i < n; i++){
        for(j = 0; j < n; j++){
        ans[i][j] = 0;
        }
    }

    for(i=0; i < n; i++){
        cin >> doudemoii >> count;
        for(j = 0; j < count; j++){
            cin >> huga;
            ans[i][huga-1] = 1;
        }
    }
    for(i = 0; i< n; i++){
        for(j = 0; j < n; j++){
            if(j < n-1)cout << ans[i][j] << ' ';
            else cout << ans[i][j] << endl;
        }
    }
}

C++: #include<bits/stdc++.h>
#define ll long long
#define rep(i, n) for(int i=0; i<n; i++)
#define REP(i, n) for(int i=0; i<=n; i++)
#define repr(i, n) for(int i=n; i>0; i--)
#define REPR(i, n) for(int i=n; i>=0; i--)
const ll INF = 1LL<<60;
const int INT_INF = 1e9;
const ll MOD = 1e9+7;
template<class T> void puts(T x) { std::cout << x << std::endl; }
template<class T> inline bool chmax(T& a, T b) { if (a < b) { a = b; return 1; } return 0; }
template<class T> inline bool chmin(T& a, T b) { if (a > b) { a = b; return 1; } return 0; }
using namespace std;

int main() {
    int N; cin >> N;
    vector<vector<int>> adj(N);
    rep(i, N) adj[i].resize(N);
    rep(i, N) { rep(j, N) adj[i][j] = 0; }

    rep(i, N) {
        int u, k; cin >> u >> k; u--;
        rep(j, k) {
            int v; cin >> v; v--;
            adj[u][v] = 1;
        }
    }
    rep(i, N) {
        rep(j, N) {
            cout << adj[i][j] << (j < N-1 ? " " : "");
        }
        cout << endl;
    }
}

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

int main(){
  
  int n, u, k, v;
  bool a[110][110] = {};
  
  cin >> n;
  for(int i = 0;i < n;i++){
    cin >> u >> k;
    for(int j = 0;j < k;j++){
      cin >> v;
      a[u][v] = true;
    }
  }
  
  for(int i = 1;i <= n;i++){
    for(int j = 1;j <= n;j++){
      cout << (j - 1?" ":"");
      cout << a[i][j];
    }
    cout << endl;
  }
  
  return 0;
}

C++: #include<iostream>

using namespace std;

#define ll long long

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

    for (ll i=0; i<n; i++){
        for(ll j=0; j<n; j++){
            cout << A[i][j];
            if(j<n-1){
                cout << ' ';
            }
        }
        if(i<n-1){
            cout << '\n';
        }
    }
}