Go: package main

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

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	n, err := nextInt(sc)
	if err != nil {
		panic(err)
	}
	matrix := make([][]int, n)
	for i := 0; i < n; i++ {
		matrix[i] = make([]int, n)
		id, err := nextInt(sc)
		if err != nil {
			panic(err)
		}
		vNum, err := nextInt(sc)
		if err != nil {
			panic(err)
		}
		for j := 0; j < vNum; j++ {
			v, err := nextInt(sc)
			if err != nil {
				panic(err)
			}
			matrix[id-1][v-1] = 1
		}
	}
	for i := 0; i < n; i++ {
		printRow(matrix[i])
	}
}

func printRow(row []int) {
	xs := make([]string, len(row))
	for i := 0; i < len(row); i++ {
		xs[i] = strconv.Itoa(row[i])
	}
	fmt.Println(strings.Join(xs, " "))
}

func nextInt(sc *bufio.Scanner) (int, error) {
	sc.Scan()
	return strconv.Atoi(sc.Text())
}

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;
}

C++: #include<iostream>
#include<math.h>
#include<string>
#include<vector>
#include<algorithm>
#include<queue>
using namespace std;
#define INF 1<<20

struct edge{
	int to;
	int cost;
	edge() {};
	edge(int a, int b) {
		to = a;
		cost = b;
	}
};

struct Node {
	int pos;
	int cost;
	Node() {};
	Node(int a, int b) {
		pos = a;
		cost = b;
	}
	bool operator <(const Node& rhs) const {
		return cost > rhs.cost;
	}
};

void dijkistra(int st, int TO,int V,vector<vector<edge> > graph) {
	priority_queue<Node> q;
	vector<int> d(V);
	for (int i = 0;i < V;i++) {
		d[i] = INF;
	}
	d[st] = 0;
	q.push(Node(st, 0));
	while (!q.empty()) {
		Node s = q.top(); q.pop();
		int pos = s.pos;
		for (int i = 0;i < graph[pos].size();i++) {
			int to = graph[pos][i].to;
			int cost = graph[pos][i].cost;
			if (d[pos] + cost < d[to]) {
				d[to] = d[pos] + cost;
				q.push(Node(to, d[to]));
			}

		}
	}
	cout << d[TO] << endl;
}
int partition(int A[],int p, int r) {
	int x = A[r];
	int i = p - 1;
	for (int j = p;j < r;j++) {
		if (x >= A[j]) {
			i = i + 1;
			swap(A[i], A[j]);
		}
	}
		swap(A[i + 1], A[r]);
		return i + 1;
}
void quicksort(int A[], int p, int r) {
	if (p < r) {
		int q = partition(A, p, r);
		quicksort(A, p, q-1);
		quicksort(A, q + 1, r);
	}
}

int getNumberOfCoin(int C[],int n,int m) {
	int T[50000];
	for (int j = 0;j <= n;j++) {
		T[j] = INF;
	}
	T[0] = 0;
	for (int i = 0;i < m;i++) {
		for (int j = 0;j <= n;j++) {
			if (j - C[i] >=0  ) {
				T[j] = min(T[j], T[j - C[i]] + 1);
			}
		}
	}
	return T[n];
}
int knapsack(int w, int n,int* v,int* ww) {
	int W[101][10001];
		for (int j = 0;j <= w;j++) {
			W[0][j] = 0;
		}
	for (int i = 0;i < n;i++) {
		for (int k = 0;k < n;k++){
			for (int j = 0;j <= w;j++) {
				if (j - ww[k] < 0) {
					W[i + 1][j] = W[i][j];
				}
				if (j - ww[i] >= 0) {
					W[i + 1][j] = max(W[i][j], W[i][j - ww[k]] + v[k]);

				}
			}
		}
	}
	return W[n][w];
}
int main() {
	int point;
	cin >> point;
	vector<queue<int> >lis(point);
	for (int i = 0;i < point;i++) {
		int V,edges;
		cin >> V>>edges;
		for (int j = 0;j < edges;j++) {
			int h;
			cin >> h;
			lis[i].push(h-1);
		}
	}

	vector<vector<int> > v(point, vector<int>(point, 0));
	for (int i = 0;i < point;i++) {
		while (!lis[i].empty()) {
			int j = lis[i].front();
			lis[i].pop();
			v[i][j] = 1;
		}
	}
	for (int i = 0;i < point;i++) {
		for (int j = 0;j < point;j++) {
			if ( j == point - 1) {
				cout << v[i][j];
			}
			else
			cout << v[i][j]<<" ";
		}
		cout << endl;
	}

	return 0;
	
}

int isPrime(int x) {
	if (x <= 1) return false;
	if (x>2 && x % 2 == 0) return false;
	for (int i = 2;i <= sqrt(x);i++) {
		if (x%i == 0) {
			return false;
		}
	}
	if (x == 2) return true;
	return true;
}

C++: #include<iostream>

int main(){

  int n,a;
  std::cin>>n;

  int Adj[n][n],adj[100][100]={0};
  int u[n],k[n];
  for(int i=0;i<n;i++){
    std::cin>>u[i];
    std::cin>>k[i];
    for(int j=0;j<k[i];j++){
      std::cin>>Adj[i][j];
    }
  }

  for(int i=0;i<n;i++){
    for(int j=0;j<k[i];j++){
      adj[u[i]-1][Adj[i][j]-1]=1;
    }
  }


  for(int i=0;i<n;i++){
    for(int j=0;j<n-1;j++){
      std::cout<<adj[i][j]<<" ";
    }
     std::cout<<adj[i][n-1]<<"\n";
    //std::cout<<"\n";
  }


  return 0;
}

C++: #include<iostream>
#include<stdio.h>

using namespace std;

int main() {
	int n,u,k,v; //頂点数、頂点の番号、出次数、隣接する頂点の番号
	int M[101][101];

	//初期化
	for (int i = 0;i < 101;i++) {
		for (int j = 0;j < 101;j++) {
			M[i][j] = 0;
		}
	}

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