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;

int main() {
   int n, u, k, v, g[100][100];
   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++) {
       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) cout << " ";
            cout << g[i][j];
        }
        cout << endl;
    }
}

C++: #include <bits/stdc++.h>
#define MAX 100
using namespace std;

int n;
int E[MAX][MAX];

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

C++: #include <bits/stdc++.h>
#define FOR(i, a, b) for (int i = (a), i##_max = (b); i < i##_max; ++i)
#define RFOR(i, a, b) for (int i = (b)-1, i##_min = (a); i >= i##_min; --i)
#define REP(i, n) for (int i = 0, i##_len = (n); i < i##_len; ++i)
#define RREP(i, n) for (int i = (n)-1; i >= 0; --i)
#define ALL(obj) (obj).begin(), (obj).end()

using namespace std;
using vi = vector<int>;
using vd = vector<double>;
using i64 = int64_t;

constexpr int INF = 1 << 30;
constexpr int MOD = 1000000007;

template <typename T>
void print(vector<T> &v) {
  REP(i, v.size()) {
    if (i) cout << " ";
    cout << v[i];
  }
  cout << endl;
}

int main() {
  int n, u, k, v;
  cin >> n;
  vector<vi> adj(n, vi(n, 0));
  REP(i, n) {
    cin >> u >> k;
    REP(j, k) {
      cin >> v;
      adj[u - 1][v - 1] = 1;
    }
  }
  REP(i, n) print(adj[i]);
}

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 != 1)
            cout << M[l][i] ;
        }
        cout << endl;
    }

    return 0;
}

C++: #include<iostream>
using namespace std;
int main() {
	bool f[100][100];
	for (int i = 0; i < 100; i++)for (int j = 0; j < 100; j++)f[i][j] = false;
	int n, u, k, v;
	cin >> n;
	for (int i = 0; i < n; i++) {
		cin >> u >> k;
		for (int j = 0; j < k; j++) {
			cin >> v;
			f[u - 1][v - 1] = true;
		}
	}
	for (int i = 0; i < n; i++) {
		for (int j = 0; j < n; j++) {
			if (j)cout << " ";
			cout << f[i][j];
		}
		cout << endl;
	}
	return 0;
}

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

int main(){
	int M[N][N]; // 0 0 起点的邻接矩阵 
	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--;		//转换为0起点 
		for(int j = 0;j < k;j++){
			cin >> v;
			v--;
			M[u][v] = 1; //在u和v之间画出一条边 
		}
	}
	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;
#define MAX 100
int N[MAX][MAX];
int main()
{
    int n;
    cin>>n;
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            N[i][j] = 0;
        }
    }
    for(int i=0;i<n;i++){
        int u,k;
        cin>>u>>k;
        for(int j=0;j<k;j++){
            int v;
            cin>>v;
            N[i][v-1] = 1;
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            if(j!=0) cout<<" ";
            cout<<N[i][j];
        }
        cout<<endl;
    }
    return 0;
}

C++: #include <vector>
#include <iostream>
#include <map>
#include <string>
#include <utility>
#include <algorithm>
#include <stack>
#include <queue>
#include <list>

const int INF = 1001001000;
const int MOD = (int)1e9 + 7;

using ll = long long;

using namespace std;


int main(){

  int n;
  int G[105][105];

  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) cout << " ";
      cout << G[i][j];
    }
    cout << endl;
  }

}

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<iostream>
#define rep(i, n) for (int i=0; i<(n); i++)
using namespace std;

static const int N=100;

int main() {
  int M[N][N];
  int n,u,k,v;
  cin>>n;
  rep(i, n) {
    rep(j, n) {
      M[i][j]=0;
    }
  }
  rep(i, n) {
    cin>>u>>k;
    u--; //0オリジンへ変換
    rep(j, k) {
      cin>>v;
      v--; //0オリジンへ変換
      M[u][v]=1;//uとvの辺を張る
    }
  }

  rep(i, n) {
    rep(j, n) {
      if (j) cout<<" ";
      cout<<M[i][j];
    }
    cout<<endl;
  }

  return 0;
}

C++: #include <cstdio>
#include <vector>

using namespace std;

int main() {
    size_t n;
    scanf("%zu", &n);

    for (size_t i=0; i<n; ++i) {
        size_t k;
        scanf("%*d %zu", &k);

        vector<int> v(n+1);
        for (size_t j=0; j<k; ++j) {
            size_t d;
            scanf("%zu", &d);

            v[d] = 1;
        }

        for (size_t j=1; j<=n; ++j)
            printf("%d%c", v[j], j<n? ' ':'\n');
    }

    return 0;
}