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>
using namespace std;

int main() {
	int a[100][100];
	int n;
	cin >> n;
	int u, k, v;
	for ( int i = 0; i < n; i++ ) {
		for ( int x = 0; x < 100; x++ )
			for ( int y = 0; y < 100; y++ )
				a[x][y] = 0;
		cin >> u >> k;
		for ( int j = 0; j < k; j++ ) {
			cin >> v;
			a[u][v] = 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;
	}
}

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

int main(int argc, char const *argv[])
{
    // 頂点数
    int cnt_vertex(0);

    cin >> cnt_vertex;
    vector<vector<int>> vecGraph(cnt_vertex,vector<int>(cnt_vertex,0));

    int num_vertex(0), cnt_exit_vertex(0);

    for (int i = 0; i < cnt_vertex; i++)
    {
        cin >> num_vertex >> cnt_exit_vertex;
        int num_next_vertex(0);
        for (int j = 0; j < cnt_exit_vertex; j++)
        {
            cin >> num_next_vertex;
            // cout << endl;
            // cout << cnt_vertex << endl;
            vecGraph[i][num_next_vertex-1] = 1;
        }
    }

    for (int i = 0; i < cnt_vertex; i++)
    {
        for (int j = 0; j < cnt_vertex; j++)
        {
            if(j == cnt_vertex-1) {
                cout << vecGraph[i][j] << "\n";
            } else {
                cout << vecGraph[i][j] << " ";
            }
        }
    }
    
    return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;
 int dp[200][200] = {0};

 void pgraph(int n){
      for(int i=1;i<=n;i++){
    for(int j=1;j<=n;j++){
      cout << dp[i][j];
      if(j != n)cout << " ";
    }
    cout << endl;
  }

 }
int main(){
  int n,u,k;
  int ad;
  cin >> n;
  for(int i=0;i<n;i++){
    cin >> u >> k;
    for(int i=0;i<k;i++){
      cin >> ad;
      dp[u][ad] = 1;
    }
  }
  pgraph(n);
  return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
template<class T>bool chmax(T &a, const T &b) { if (a<b) { a=b; return 1; } return 0; }
template<class T>bool chmin(T &a, const T &b) { if (a>b) { a=b; return 1; } return 0; }

using Lint=long long;

int main()
{
    cin.tie(0);
    ios::sync_with_stdio(false);

    int N; cin>>N;
    vector<vector<int>> G(N,vector<int>(N));
    for(int i=0;i<N;i++){
        int u,k; cin>>u>>k;
        u--;
        while(k--){
            int v; cin>>v;
            v--;
            G[u][v]=1;
        }
    }
    for(int i=0;i<N;i++){
        for(int j=0;j<N;j++){
            cout<<G[i][j]<<(j==N-1? '\n':' ');
        }
    }
    return 0;
}

C++: #include <iostream>

using namespace std;

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

C++: #include <iostream>

using namespace std;

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;
    int 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--;        // 0オリジンへ変換
        for (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 (i = 0; i < n; i++) {
        for (j = 0; j < n; j++) {
            if (j) cout << " ";
            cout << M[i][j];
        }
        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];

			if (j == N - 1)
			{
				cout << ' ';
			}
		}

		cout << endl;
	}

	return 0;
}

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

int main() {
    ios::sync_with_stdio(false);
    cin.tie(0);

    int n;
    cin >> n;
    vector<vector<int>> G(n, vector<int>(n, 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;
            G[u - 1][v - 1] = 1;
        }
    }

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

    return 0;
}

C++: #define _CRT_SECURE_NO_WARNINGS
#include <iostream>
#include <cstdio>
#include <algorithm>
#include <limits.h>
using namespace std;

int a[101][101];
int main(){
	int n; scanf("%d",&n);
	for (int i = 1; i <= n; ++i){
		int u, k; scanf("%d %d",&u,&k);
		int tmp;
		while(k--){
			scanf("%d",&tmp);
			a[u][tmp] = 1;
		}
	}
	for (int i = 1; i <= n; ++i){
		for (int j = 1; j <= n; ++j){
			if (j != 1) cout << ' ';
			cout << a[i][j];
		}
		cout << '\n';
	}
}

C++: #include <iostream>
#include <vector>
#include <cassert>
#include <algorithm>
#include <functional>

using namespace std;
    
#include <iostream>
#include <vector>
#include <cassert>
#include <algorithm>
#include <functional>
#include <cmath>
#include <iomanip>
#include <limits>
#include <bits/stdc++.h>
using namespace std;
int main(){
    int n;
    cin >> n;
    vector<vector<int>> vec(n);
    vector<int> SIZE;
    for(int i=0;i<n;i++){
        int x;
        cin >> x;
        int num;
        cin >> num;
        SIZE.push_back(num);
        for(int j = 0;j< num;j++){
            int y;
            cin >> y;
            vec[x-1].push_back(y-1) ;
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            bool hantei=0;
            for(int k=0;k<SIZE[i];k++){
                if(vec[i][k]==j) {cout << 1 <<" "; hantei=1;}
            }
            if(hantei==0) cout <<0<<" ";
        }cout << endl;
    }cout << endl;
}

C++: #include <stdio.h>
#include <iostream>
#include <algorithm>
#include <vector>
#include <math.h>
#include <string>
#include <string.h>
#include <queue>
#define FOR(i,a,b) for (int i=(a);i<(b);i++)
#define RFOR(i,a,b) for (int i=(b)-1;i>=(a);i--)
#define REP(i,n) for (int i=0;i<(n);i++)
#define RREP(i,n) for (int i=(n)-1;i>=0;i--)
int N,W;
int vx[]={1,0,-1,0};
int vy[]={0,1,0,-1};
int mt[102][102];
using namespace std;
void solve(){
    cin >> N ;
    int E,K;
    memset (mt,0,102*102);
    REP(i,N){
      cin >> E >> K;
      REP(j,K)
      {
        cin >> E;
        mt[i][E-1] = 1 ;
      }
    }
    REP(x,N){
      REP(y,N){
        cout << mt[x][y] ;
        if(!(x==N-1&&y==N-1))cout << " ";
      }
      if(x!=N-1)cout << endl;
    }
}
int main(){

    solve();
}