Go: package main

import (
	"bufio"
	"bytes"
	"fmt"
	"io"
	"os"
	"strconv"
	"strings"
)

const N = 100

func answer(reader io.Reader) string {
	sc := bufio.NewScanner(reader)
	sc.Split(bufio.ScanWords)

	sc.Scan()
	n, _ := strconv.Atoi(sc.Text())

	var M [N][N]int
	for i := 0; i < n; i++ {
		sc.Scan()
		u, _ := strconv.Atoi(sc.Text())
		sc.Scan()
		k, _ := strconv.Atoi(sc.Text())
		u--
		for j := 0; j < k; j++ {
			sc.Scan()
			v, _ := strconv.Atoi(sc.Text())
			v--
			M[u][v] = 1
		}
	}

	var out bytes.Buffer
	for i := 0; i < n; i++ {
		for j := 0; j < n; j++ {
			if j != 0 {
				out.WriteString(" ")
			}
			out.WriteString(fmt.Sprintf("%d", M[i][j]))
		}
		out.WriteString("\n")
	}

	return strings.TrimRight(out.String(), "\n")
}

func main() {
	fmt.Println(answer(os.Stdin))
}

C++: #include<iostream>
#include<vector>
using namespace std;
int main(){
  int n;
  cin>>n;
  vector< vector<int> > a(n,vector<int> (n));
  for(int i=0; i<n; i++){
    for(int j=0; j<n; j++){
      a[i][j]=0;
    }
  }
  for(int i=0; i<n; i++){
    int u,k;
    cin>>u;
    cin>>k;
    vector<int> v(k);
    for(int j=0; j<k; j++){
      cin>>v[j];
    }
    for(int s=0; s<n; s++){
      for(int t=0; t<k; t++){
	if(s==v[t]-1){
	  a[u-1][v[t]-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 <vector>
#include <iostream>

using namespace std;

int N;

int main()
{
	cin >> N;

	vector<vector<bool> > M(N, vector<bool>(N));

	int u, k, v;

	for (int i = 0; i < N; i++)
	{
		cin >> u >> k;

		for (int i = 0; i < k; i++)
		{
			cin >> v;

			M[u - 1][v - 1] = true;
		}
	}

	for (int i = 0; i < N; i++)
	{
		for (int j = 0; j < N; j++)
		{
			cout << M[i][j];

			cout << ' ';
		}

		cout << endl;
	}

	return 0;
}

C++: #include<iostream>

using namespace std;

int main () {

    int n, u, k, v, M[100][100], 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 != 0) {
                cout << " ";
            }
            cout << M[i][j];
        }
        cout << endl;
    }
    return 0;
}

C++: #include <iostream>
#include <list>
#include <vector>
#include <map>
#include <set>
#include <queue>
#include <stack>
#include <numeric>
#include <algorithm>
#include <cmath>
#include <string>
using namespace std;
typedef long long lli;
typedef vector<lli> vll;
typedef vector<bool> vbl;
typedef vector<vector<lli> > mat;
typedef vector<vector<bool> > matb;
typedef vector<string> vst;
typedef pair<lli,lli> pll;
typedef pair<double,double> pdd;

lli n;
lli u,k,v;

matb g;

int main(){
    cin >> n;
    g = matb(n+1,vbl(n+1));
    for(lli i = 0;i < n;i++){
        cin >> u >> k;
        for(lli j = 0;j < k;j++){
            cin >> v;
            g[u][v] = true;
        }
    }
    for(lli i = 1;i <= n;i++){
        for(lli j = 1;j <= n;j++){
            cout << g[i][j];
            if(j == n) cout << endl;
            else cout << " ";
        }
    }
    return 0;
}

C++: #include <iostream>
#include <cstdio>
#include <cstdlib>
#include <cstring>
#include <cmath>
#include <map>
#include <set>
#include <vector>
#include <stack>
#include <queue>
#include <bitset>
#include <algorithm>
#include <numeric>
#include <functional>
using namespace std;

#define Rep(b, e, i) for(int i = b; i <= e; i++)
#define Repr(e, b, i) for(int i = e; i >= b; i--)
#define rep(n, i) Rep(0, n-1, i)
#define repr(n, i) Repr(n-1, 0, i)
#define all(v) (v).begin(), (v).end()
#define pb(v) push_back(v)
#define uniq(v) (v).erase(unique(all(v)),(v).end())
#define bitcnt(x) __builtin_popcount(x)
#define fst first
#define snd second
#define Pqaz(T) priority_queue<T,vector<T>,greater<T>>
#define Pqza(T) priority_queue<T>
#define ENJYU std::ios::sync_with_stdio(false);std::cin.tie(0);

typedef long long ll;
typedef pair<ll, ll> llP;
typedef pair<int, int> intP;

//vector の中身を出力
template <class T>ostream &operator<<(ostream &o,const vector<T>&v)
{o<<"{";for(int i=0;i<(int)v.size();i++)o<<(i>0?", ":"")<<v[i];o<<"}";return o;}

void solve(void){
	int V;
	cin >> V;
	vector <vector <bool>> adj(V, vector <bool> (V, 0));
	rep(V, i) {
		int u, k;
		cin >> u >> k;
		u--;
		rep(k, j) {
			int n;
			cin >> n;
			n--;
			adj[u][n] = 1;
		}
	}
	rep(V, i) rep(V, j) {
		cout << adj[i][j] << ' ';
		if (j == V-1) cout << endl;
	}
}

int main(void){
	solve();
	//cout << "yui(*-v・)yui" << endl;
	return 0;
}

C++: //
// Created by 李青坪 on 2018/10/31.
//

#include <cstdio>
#include <algorithm>

#define MAXN 101
using namespace std;

int graph[MAXN][MAXN];

void init(){
    for (auto &i : graph) {
        fill(i, i +MAXN, 0);
    }
}

int main(){
    int n;
    scanf("%d", &n);
    init();
    int v, dgr;
    for (int i = 0; i < n; ++i) {
        scanf("%d %d", &v, &dgr);
        int node;
        for (int j = 0; j < dgr; ++j) {
            scanf("%d", &node);
            graph[v][node] = 1;
        }
    }
    for (int k = 1; k <= n; ++k) {
        for (int i = 1; i <= n; ++i) {
            if (i-1) printf(" ");
            printf("%d", graph[k][i]);
        }
        printf("\n");
    }
}
/*
4
1 2 2 4
2 1 4
3 0
4 1 3

 */

C++: #include<bits/stdc++.h>
using namespace std;
#define MOD 1000000007

int main() {

 int n;
 cin >> n;

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


  
}