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 <bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i=0; i<(n); i++)
using ll = long long;
using P = pair<int, int>;
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++: #include <bits/stdc++.h>
#define rep(i, n) for (ll i = 0; i < (ll)n; i++)
#define PI 3.14159265358979323846
#define vll vector<long long>
#define vvll vector<vector<long long>>
using namespace std;
using ll = long long;
using ld = long double;

// ----本問について----
// 問題：Breadth First Search
// 問題文URL：https://onlinejudge.u-aizu.ac.jp/problems/ALDS1_11_C
// 所要時間：30分
// 学んだこと：グラフの表現方法
// ------------------

// ----ここから本問のソースコード----
static const ll N_MAX = 110;

// グローバル変数（入力）
ll n,A[N_MAX][N_MAX];

// 入力
void input() {
  cin >> n;
}

void solve() {
  // 隣接リストを隣接行列に変換して二次元配列Aに格納
  rep(i,n){
    ll v,k;
    cin >> v >> k;
    rep(j,k){
      ll v2;
      cin >> v2;
      A[v][v2]=1;
    }
  }

  // 隣接行列を出力
  rep(i,n){
    rep(j,n){
      cout << A[i+1][j+1];
      if (j<n-1){
        cout << " ";
      } else {
        cout << endl;
      }
    }
  }
}

int main() { 
  input();
  solve();
  return 0; 
}

C++: #include<iostream>
#include<vector>
#include<algorithm>
#include<cctype>
#include<utility>
#include<string>
#include<cmath>
#include<cstring>
#include<queue>
#include<map>
#include<set>
#include<climits>

#define REP(i, n) for(int i = 0;i < n;i++)
#define REPR(i, n) for(int i = n;i >= 0;i--)
#define FOR(i, m, n) for(int i = m;i < n;i++)
#define FORR(i, m, n) for(int i = m;i >= n;i--)
#define SORT(v, n) sort(v, v+n);
#define VSORT(v) sort(v.begin(), v.end());
#define llong long long
#define pb(a) push_back(a)

using namespace std;

typedef long long int ll;
typedef pair<int, int> pii;
typedef pair<ll, ll> pll;


template<typename T>
vector<T> make_v(size_t a) { return vector<T>(a); }
template<typename T, typename... Ts>
auto make_v(size_t a, Ts... ts) {
	return vector<decltype(make_v<T>(ts...))>(a, make_v<T>(ts...));
}
template<typename T, typename V>
typename enable_if<is_class<T>::value == 0>::type
fill_v(T& t, const V& v) { t = v; }
template<typename T, typename V>
typename enable_if<is_class<T>::value != 0>::type
fill_v(T& t, const V& v) {
	for (auto& e : t) fill_v(e, v);
}


#define ARRAY_MAX 100005
const int INF = INT32_MAX / 3;
const ll MOD = 1e9 + 7;

int dx[4] = { 1,0,0,-1 };
int dy[4] = { 0,1,-1,0 };


/******************************************************************************************/


int main() {

	int mp[105][105] = {};

	int n;
	cin >> n;
	for (int i = 0; i < n; i++)
	{
		int v, k;
		cin >> v >> k;
		v--;
		for (int j = 0; j < k; j++)
		{
			int c;
			cin >> c;
			c--;
			mp[v][c] = 1;
		}
	}

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



	return 0;
}

C++: #include <iostream>

using namespace std;

int main() {
    int n, u, k, v, a[101][101] = {};
    cin >> n;
    for (int i = 1; i <= n; ++i) {
        cin >> u >> k;
        while (k--) {
            cin >> v;
            a[u][v] = 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;
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;
  }

return0;
}

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

    return 0;
}