Go: package main
import (
	"fmt"
	"bufio"
	"os"
	"bytes"
	"strconv"
	"strings"
)

func nextInt(scanner *bufio.Scanner) int {
	scanner.Scan()
	num , _ :=  strconv.Atoi(scanner.Text())
	return num
}


func main() {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Split(bufio.ScanWords)

	N := nextInt(scanner)
	var A [][]int = make([][]int, N)
	for i:=0; i<N; i++ {
		A[i] = make([]int, N)
	}
	for i:=0; i<N; i++{
		idx := nextInt(scanner)
		cnt := nextInt(scanner)
		for j:=0; j<cnt; j++ {
			node := nextInt(scanner)
			A[idx-1][node-1] = 1
		}
	}
	var outBuffer bytes.Buffer
	for i:=0; i<N; i++ {
		outBuffer.WriteString(strings.TrimRight(fmt.Sprintf("%v",A[i])[1:], "]") + "\n")
	}
	fmt.Printf("%s", outBuffer.String())
}

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++: #define _CRT_SECURE_NO_WARNINGS
#include <cstdio>
#include <cstdlib>
#include <string>
#include <iostream>
#include <climits>

using namespace std;


int main() {
	int n;
	int u, v;
	int Adj[101][101];
	int deg;
	cin >> n;
	for (int i = 1; i <= n; i++) {
		for (int j = 1; j <= n; j++) {
			Adj[i][j] = 0;
		}
	}
	for (int i = 1; i <= n; i++) {
		cin >> u;
		cin >> deg;
		for (int j = 1; j <= deg; j++) {
			cin >> v;
			Adj[u][v] = 1;
		}
	}
	for(int i = 1; i <= n; i++) {
		for (int j = 1; j <= n; j++) {
			printf(" %d", Adj[i][j]);
		}
		printf("\n");
	}
}

C++: #include <iostream>

using namespace std;

int main()
{
    int n;
    cin >> n;
    int g[n + 1][n + 1];
    //?????????
    for (int i = 1; i <= n; i++) {
	for (int j = 1; j <= n; j++) {
	    g[i][j] = 0;
	}
    }
    //input
    for (int i = 1; i <= n; i++) {
	int a;
	cin >> a;
	int b;
	cin >> b;
	for (int j = 1; j <= b; j++) {
	    int c;
	    cin >> c;
	    g[a][c] = 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>
using namespace std;
int a[101][101];
void init(int n){
	for (int i = 1;i <= n;i++){
		for (int j = 1;j <= n;j++){
			a[i][j] = 0;
		}
	}
}
int main()
{
	int n;
	while (cin >> n){
		init(n);
		int x,m,y;
		for (int i = 1;i <= n;i++){
			cin >> x >> m;
			while (m--){
				cin >> y;
				a[x][y] = 1;
			}
		}
		for (int i = 1;i <= n;i++){
			for (int j = 1;j <= n;j++){
				cout << a[i][j] << " ";
			}
			cout << endl;
		}
	}
	return 0;
}

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

int main()
{
    int n;
    cin >> n;

    vector<vector<int>> adj(n, vector<int>(n, 0));
    for (int i = 0; i < n; i++)
    {
        int a, k;
        cin >> a >> k;
        for (int j = 0; j < k; j++)
        {
            int x;
            cin >> x;
            adj[a - 1][x - 1] = 1;
        }
    }

    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < n; j++)
        {
            cout << adj[i][j];
            if (j < n - 1)
            {
                cout << " ";
            }
        }
        cout << endl;
    }

    return 0;
}

C++: #include <iostream>

using namespace std;

int main(){
  int g[1001][1001]={{0}};//要素を0で初期化
  int n,a,b,c;
  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 >> a >> b ;
    for (int i = 0; i < b; ++i)
    {
      cin >> c;
      g[a-1][c-1]=1;/* code */
    }
  }
  for (int i = 0; i < n; ++i)
  {
     for (int j = 0; j < n; ++j)
     {
      if (j==n-1)
      {
        cout << g[i][j] << endl;
      }else{
        cout << g[i][j] <<" ";
      }
     }
  }

}

C++: #include<cstdio>
#include<iostream>
using namespace std;
int n, adj[101][101];

int main()
{
  scanf("%d", &n);
  int u, k, v;
  for(int i=0; i<=n; i++)
  {
    for(int j=0; j<=n; j++)
    {
      adj[i][j] = 0;
    }
  }
  for(int i=0; i<n; i++)
  {
    scanf("%d%d", &u, &k);
    for(int j=0; j<k; j++)
    {
      scanf("%d", &v);
      adj[u][v] = 1;
    }
  }
  for(int i=1; i<=n; i++)
  {
    for(int j=1; j<=n; j++)
    {
      if(j!=1) printf(" ");
      printf("%d", adj[i][j]);
    }
    printf("\n");
  }



  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;
    }
    
    return 0;
}

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

int main()
{
    int n,k;
    int A[100][100]={0};
    cin>>n;
    for(int i=0;i<n;i++)
    {
        cin>>k;
        for(int j=0;j<k;j++)
        {
            int x;
            cin>>x;
            A[i][x]=1;
        }
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            if(i==n-1&&j==n-1)
                cout<<A[i][j];
            else
                cout<<A[i][j]<<" ";
        }
    }
    return 0;
}

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

		}
		cout << endl;
	}

}

C++: #include<bits/stdc++.h>

using namespace std;

typedef vector<int> vec;
typedef vector<vec> Graph;

int G[110][110];

int main()
{
	memset(G,0,sizeof(G));
	int n;
	scanf("%d",&n);
	for(int i=0;i<n;i++)
	{
		int u,t;
		scanf("%d%d",&u,&t);
		u--;
		for(int j=0;j<t;j++)
		{
			int v;
			scanf("%d",&v);
			v--;
			G[u][v]=1;
		}
	}
	for(int i=0;i<n;i++)
		for(int j=0;j<n;j++)
			printf("%d%c",G[i][j],j+1==n?'\n':' ');
	return 0;
}

C++: #include <iostream>

int main(void){
	int n;
	std::cin >> n;
	
	char list[101][101] = {0};
	
	int ci, cn, cval;
	for(int i=0; i<n; i++){
		std::cin >> ci >> cn;
		for(int j=0; j<cn; j++){
			std::cin >> cval;
			list[ci][cval] = 1;
		}
	}
	
	for(int i=1; i<=n; i++){
		for(int j=1; j<=n; j++){
			std::cout << (int)list[i][j];
			if(j!=n) std::cout << ' ';
		}
		std::cout << '\n';
	}
	
	return 0;
}

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

int main()
{
  int n;
  int node,k,vi;
  int graph[100][100];

  cin >> n;
  memset(graph,0,sizeof(graph));
  
  for(int i=0;i < n;i++){
    cin >> node >> k;
    for(int j=0;j < k;j++){
      cin >> vi;
      graph[node-1][--vi] = 1;
    }
  }
  for(int i=0;i < n;i++){
    for(int j=0;j < n;j++){
      if(j) cout << " ";
      if(graph[i][j]) cout << 1;
      else cout << 0;
    }
    cout << endl;
  }
  return 0;
}

C++: #include <stdio.h>
#define N 100


int main(){

  int i,j,n,u[N],k[N];
  int Adj[N][N],t[N];


  scanf("%d",&n);

  for(i=0; i<n; i++){
    for(j=0; j<n; j++){
      Adj[i][j] = 0;
    }
  }


  for(i=0; i<n; i++){

    scanf("%d %d",&u[i],&k[i]);
    for(j=0; j<k[i]; j++){
      scanf("%d",&t[j]);

      Adj[u[i]][t[j]-1] = 1;
    }

  }


  for(i=0; i<n; i++){
    for(j=0; j<n; j++){
      printf("%d ",Adj[u[i]][j]);
    }
    printf("\n");
  }
  return 0;
}