Go: package main

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

var sc = bufio.NewScanner(os.Stdin)

func nextInt() int {
	sc.Scan()
	i, _ := strconv.Atoi(sc.Text())
	return i
}
func main() {
	sc.Split(bufio.ScanWords)

	n := nextInt()

	graph := make([][]int, n)
	for i := 0; i < n; i++ {
		graph[i] = make([]int, n)
	}
	for i := 0; i < n; i++ {
		s := nextInt()
		t := nextInt()
		if t == 0 {
			continue
		}
		for i := 0; i < t; i++ {
			u := nextInt()
			graph[s-1][u-1] = 1
		}
	}
	for i := range graph {
		for j := range graph[i] {
			if j == n-1 {
				fmt.Printf("%d\n", graph[i][j])
			} else {
				fmt.Printf("%d ", graph[i][j])
			}
		}
	}
}

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

typedef vector<int> VI;
typedef vector<VI> VVI;
typedef vector<string> VS;
typedef pair<int,int> PII;
typedef long long LL;

#define d(x)  cout<<#x<<" = "<<(x)<<endl;
#define ALL(a)  (a).begin(),(a).end()
#define RALL(a) (a).rbegin(), (a).rend()
#define PB push_back
#define MP make_pair
#define SZ(a) int((a).size())
#define EACH(i,c) for(typeof((c).begin()) i=(c).begin(); i!=(c).end(); ++i)
#define REACH(i,c) for(typeof((c).rbegin()) i=(c).rbegin(); i!=(c).rend(); ++i)
#define EXIST(s,e) ((s).find(e)!=(s).end())
#define SORT(c,n) sort(c,c+n)
#define VSORT(c) sort((c).begin(),(c).end())
#define FOR(i,a,b) for(int i=(a);i<(b);++i)
#define REP(i,n)  FOR(i,0,n)
#define DFOR(i,b,a) for(int i=(b)-1;i>=(a);--i)
#define DREP(i,n) DFOR(i,n,0)
#define INF 2000000000

const double EPS = 1e-10;
const double PI  = acos(-1.0);
////////////////////////////////////////////////
int a[100][100];
int main()
{
	int n;cin>>n;
	REP(i,n)
	{
		int m;cin>>m;
		int k;cin>>k;
		REP(j,k)
		{
			int l;cin>>l;
			a[m-1][l-1]=1;
		}
	}
	REP(i,n)
	{
		REP(j,n)
		{
			if(j)cout<<" ";
			cout<<a[i][j];
		}
		cout<<endl;
	}
	return 0;
}

C++: #define _USE_MATH_DEFINES
#include<iostream>
#include<algorithm>
#include<string>
#include<iomanip>
#include<cmath>
#include<vector>
#include<deque>
#include<queue>
#include<map>
#include<set>
#define ll long long
#define vec vector
#define vll vec<ll>
#define dou(s) atof(s.c_str())
#define lon(s) atoll(s.c_str())
#define str(n) to_string(n)
#define rep(i,a,b) for(ll i=a;i<b;i++)
#define rrep(i,b,a) for(ll i=b;i>=a;i--)
#define ALL(a) a.begin(),a.end()
#define rALL(a) a.rbegin(),a.rend()
#define line "\n"
#define mav(a) (*max_element(ALL(a)))
#define miv(a) (*min_element(ALL(a)))
#define vfind(a,n) (find(ALL(a),n)-a.begin())
#define prque priority_queue
#define MOD 1000000007ll
using namespace std;
void solve();
int main() {
	cin.tie(0);
	ios::sync_with_stdio(false);
	solve();
}

//nCk(mod p)
/*ll fac[510000], finv[510000], inv[510000];
void cmodf(ll p = MOD) {
	fac[0] = fac[1] = 1;
	finv[0] = finv[1] = 1;
	inv[1] = 1;
	rep(i, 2, 510000) {
		fac[i] = fac[i - 1] * i%p;
		inv[i] = p - inv[p%i] * (p / i) % p;
		finv[i] = finv[i - 1] * inv[i] % p;
	}
}
ll cmod(ll n, ll k, ll p = MOD) {
	return fac[n] * (finv[k] * finv[n - k] % p) % p;
}*/

//最大公約数
ll gcd(ll n, ll m) {
	ll k = n % m;
	while (k != 0) { n = m; m = k; k = n % m; }
	return m;
}
ll gcd(vector<ll> a) {
	rep(i, 1, a.size()) {
		ll k = a[i - 1] % a[i];
		while (k != 0) {
			a[i - 1] = a[i];
			a[i] = k;
			k = a[i - 1] % a[i];
		}
	}
	return a.back();
}

//最小公倍数
ll lcm(ll n, ll m) {
	ll t = n * m, k = n % m;
	while (k != 0) { n = m; m = k; k = n % m; }
	return t / m;
}
ll lcm(vector<ll> a) {
	ll n;
	rep(i, 1, a.size()) {
		n = a[i - 1] * a[i];
		ll k = a[i - 1] % a[i];
		while (k != 0) {
			a[i - 1] = a[i];
			a[i] = k;
			k = a[i - 1] % a[i];
		}
		n /= a[i];
		a[i] = n;
	}
	return n;
}

//keyの小さい方から探していった時に初めてvalueがjoken以上になる時のkey（keyが増えたらvalueも増えるか同じになるとき）
ll value(ll key) {
	/*変更*/
	return 0;
}
ll mini(ll lkey, ll rkey/*ここも調べる*/, ll joken) {
	ll mkey;
	while (lkey != rkey) {
		mkey = (lkey + rkey) / 2;
		if (value(mkey) >= joken)rkey = mkey;
		else lkey = mkey + 1;
	}
	return rkey;
}

//ペア配列の整理
struct cpl {
	ll f, s;
	bool operator<(const cpl &c) const {
		return f != c.f ? f < c.f : s < c.s;
	};
};

//変数定義

//再帰関数

//アルゴリズム
void solve() {
	ll k, m, n; cin >> n;
	rep(i, 0, n) {
		cin >> k >> m;
		vll a(n, 0);
		rep(j, 0, m) {
			cin >> k;
			a[k - 1] = 1;
		}
		cout << a[0];
		rep(j, 1, n) {
			cout << " " << a[j];
		}
		cout << line;
	}
}

C++: #include<bits/stdc++.h>
using namespace std;
#define rep(i,n) for(int i = 0; i < (n) ; i++)
constexpr auto INF = 2147483647;
typedef long long ll;

int main(){
  int graph[101][101];
  int vol_size;
  int vol, deg, v;
  cin >> vol_size;
  // init
  rep(i,vol_size + 1){
    rep(j,vol_size + 1){
      graph[i][j] = 0;
    }
  }

  rep(i,vol_size){
    cin >> vol >> deg;
      rep(j,deg){
        cin >> v;
        graph[vol][v] = 1;
      } 
  }

  for(int i = 1; i <= vol_size; i++){
    for(int j = 1; j<= vol_size; j++){
      if(j > 1) cout << " ";
      cout << graph[i][j];
    }
    cout << endl;
  }

  return 0;
}

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

int main()
{
	int n;
	cin >> n;
	int matrix[n][n];
	for(int i=0; i<n; i++){
		for(int j=0; j<n; j++){
			matrix[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;
			matrix[u-1][v-1] = 1;
		}
	}
		
	for(int i=0; i<n; i++){
		cout << matrix[i][0];
		for(int j=1; j<n; j++){
			cout << " " << matrix[i][j];
		}
		cout << endl;
	}

	return 0;
}

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

int main()
{
	int n, u, k, v[101], VM[101][101];
	memset(VM, 0, sizeof(VM));
	cin >> n;

	for (int i = 1; i <= n; i++)
	{
		cin >> u >> k;

		for (int j = 1; j <= k; j++)
		{
			cin >> v[j];
			VM[u][v[j]] = 1;
		}
	}

	for (int i = 1; i <= n; i++)
	{
		for (int j = 1; j < n; j++)
			cout << VM[i][j] << " ";

		cout << VM[i][n] << endl;
	}

	return 0;
}

C++: #include <iostream>

using namespace std;

int G[100][100];

int main() {
	int n; cin >> n;
	for (int i = 0; i < n; ++i) {
		int u, k; cin >> u >> k;
		--u;
		while (k--) {
			int v; cin >> v;
			G[u][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;
	}

	return 0;
}

C++: #include <iostream>
using namespace std;
#define MAX 100

int main() {
    int n, idx, g_num, a;
    int G[MAX+1][MAX+1];

    cin >> n;
    for(int i=0; i<n; i++) {
        cin >> idx >> g_num;
        for(int j=0; j<=n; j++) {
            G[idx][j] = 0;
        }
        for(int j=0; j<g_num; j++) {
            cin >> a;
            G[idx][a] = 1;
        }   
    }

    for(int i=1; i<=n; i++) {
        for(int j=1; j<=n; j++) {
            cout << " " << G[i][j];
        }
        cout << endl;
    }

    return 0;
}

C++: #include<iostream>
#include<vector>
#include<iterator>
#include<algorithm>

int main() {

	int n;
	std::cin >> n;

	std::vector<std::vector<int>> g(n,std::vector<int>(n,0));

	for (int i{}; i < n; ++i) {
		int u, k;
		std::cin >> u >> k;
		for (int ki{}; ki < k; ++ki) {
			int vi;
			std::cin >> vi;
			g[u - 1][vi - 1] = 1;
		}
	}

	if(n>1)
	for (const auto&e : g) {
		std::copy(
			std::begin(e)
			, std::prev(std::end(e))
			, std::ostream_iterator< const std::decay_t<decltype(e)>::value_type &>{std::cout, " "}
		);
		std::cout << *( std::end(e)-1 ) << "\n";
	}
	else
		for (const auto&e : g) {
			for (const auto&ee : e)
				std::cout << ee << "\n";
		}

	return 0;
}