Go: package main

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

// I/O
type Scanner struct {
	sc *bufio.Scanner
}

func NewScanner() *Scanner {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	sc.Buffer(make([]byte, 1024), int(1e+9))
	return &Scanner{sc}
}

func (s *Scanner) nextStr() string {
	s.sc.Scan()
	return s.sc.Text()
}

func (s *Scanner) nextInt() int {
	i, e := strconv.Atoi(s.nextStr())
	if e != nil {
		panic(e)
	}
	return i
}

func (s *Scanner) nextFloat() float64 {
	f, e := strconv.ParseFloat(s.nextStr(), 64)
	if e != nil {
		panic(e)
	}
	return f
}

func (s *Scanner) nextRuneSlice() []rune {
	return []rune(s.nextStr())
}

func (s *Scanner) nextIntSlice(n int) []int {
	res := make([]int, n)
	for i := 0; i < n; i++ {
		res[i] = s.nextInt()
	}
	return res
}

func (s *Scanner) nextFloatSlice(n int) []float64 {
	res := make([]float64, n)
	for i := 0; i < n; i++ {
		res[i] = s.nextFloat()
	}
	return res
}

// Arithmetic
func max(nums ...int) int {
	m := nums[0]
	for _, i := range nums {
		if m < i {
			m = i
		}
	}
	return m
}

func min(nums ...int) int {
	m := nums[0]
	for _, i := range nums {
		if m > i {
			m = i
		}
	}
	return m
}

func abs(x int) int {
	if x > 0 {
		return x
	}
	return -x
}

func pow(x, y int) int {
	res := 1
	for i := 0; i < y; i++ {
		res *= x
	}
	return res
}

func ceil(a, b int) int {
	if a%b == 0 {
		return a / b
	} else {
		return a/b + 1
	}
}

// Sort
type RuneSlice []rune

func (a RuneSlice) Len() int           { return len(a) }
func (a RuneSlice) Less(i, j int) bool { return a[i] < a[j] }
func (a RuneSlice) Swap(i, j int)      { a[i], a[j] = a[j], a[i] }

// Main
func main() {
	sc := NewScanner()
	wtr := bufio.NewWriter(os.Stdout)
	N := sc.nextInt()
	g := make([][]int, N)
	for i, _ := range g {
		g[i] = make([]int, N)
	}
	for i := 0; i < N; i++ {
		u, k := sc.nextInt(), sc.nextInt()
		for j := 0; j < k; j++ {
			g[u-1][sc.nextInt()-1] = 1
		}
	}

	for _, r := range g {
		for i, num := range r {
			if i > 0 {
				fmt.Fprint(wtr, " ")
			}
			fmt.Fprint(wtr, num)
		}
		fmt.Fprintln(wtr)
	}
	wtr.Flush()
}

C++: #include <iostream>
#include <queue>
#include <stack>
#include <cstdio>
#include <vector>
#include <sstream>
#include <stdio.h>

using namespace std;

const int N_MAX = 1000000;

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

  // table
  int** table = new int*[N];
  for(int i=0; i<N; i++){
    table[i] = new int[N];
    memset(&table[i][0], 0, N*sizeof(table[i][0]));
    // &table[i][0] can be table[i] because it only needs head address.
    
    //[..., [int, int,int], ...]
    // memset(start_addr, 0, delta_arr) fills
    // start_addr to (start_addr + delta_arr) by 0.
    // table[i] refers to the first addr of table[i],
    // for each integer to be filled by 0, size of the element
    // (not table[i]) should be given.
  }
  
  for(int i=0; i<N; i++){
    int row_num, k;
    cin >> row_num >> k;

    row_num--;
    
    for(int j=0; j<k; j++){
      int col_num;
      cin >> col_num;
      col_num--;
      table[row_num][col_num] = 1;
    }
  }

  //print table
  for(int i=0; i<N; i++){
    for(int j=0; j<N; j++){
      cout << table[i][j] << " ";
    }
    cout << endl;
  }
  
  for(int i=0; i<N; i++){
    delete[] table[i];
  }
  delete[] table;
  
  return 0;
}

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

//隣接リスト

int main(){

    int V; cin >> V;
    vector<vector<int> > adjlist(V);      

    //入力
    for(int i = 0; i < V; i++){
        int gomi; cin >> gomi;
        int k; cin >> k;
        for(int j = 0; j < k; j++){
            int a; cin >> a;
            adjlist[i].push_back(a - 1);
        }
    }

    vector<vector<int> > array(V, vector<int> (V, 0));

    for(int i = 0; i < V; i++){
        for(int j = 0; j < adjlist[i].size(); j++){
            array[i][adjlist[i][j]] = 1;
        }
    }

    //出力
    for(int i = 0; i < V; i++){
        for(int j = 0; j < V; j++){
            if(j == V - 1) cout << array[i][j] << endl;
            else cout << array[i][j] << " ";
        }
    }

    return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;
static const int MAX  = 100;
int main ()
{
  int n,u,k,v;
  cin>>n;
  int M[MAX][MAX];
  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<bits/stdc++.h>
using namespace std;
int main() {
    int n; cin >> n;
    vector<vector<int>> v(n, vector<int>(n));
    for (int i = 0; i < n; i++) {
        int u, k; cin >> u >> k;
        while (k--) {
            int t; cin >> t;
            v[u-1][t-1] = 1;
        }
    }
    for (int i = 0; i < n; i++) {
        for (int j = 0; j < n; j++) {
            if (j) cout << " ";
            cout << v[i][j];
        }
        cout << endl;
    }
}

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;

  cin >> n;
  
  // initial condition insert
  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--; // 0オリジンへ変換
    for (int j = 0; j < k; j++) {
      cin >> v;
      v--; // 0オリジンへ変換
      M[u][v] = 1; // uとvの間に辺を振る
    }
  }

  for (int i = 0; i < n; i++) {
    for ( int j = 0; j < n; j++) {
      if (j) cout << " "; // 最初以外は空白を前におく
      cout << M[i][j];
    }
    cout << endl;
  }
  
  return 0;
}

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

using namespace std;

int main()
{

    int n;
    cin >> n;
    vector<vector<int>> G(n, vector<int>(n,0));
    int u, k, v;
    for (int i = 0; i < n; ++i){
        cin >> u >> k;
        for (int j = 0; j < k; ++j)
        {
            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++: #include <iostream>
#include <string>
#include <vector>
#include <set>
#include <cstdio>
#include <cstdlib>
#include <algorithm>
#include <functional>
#include <map>
#include <cmath>
#include <queue>

using namespace std;

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

    int n;scanf("%d",&n);
    int u;
    int k;
    vector<vector<int> > graph;
    graph.resize(n);
    for(int i=0;i<n;i++){
        graph[i].resize(n);
    }
    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            graph[i][j]=0;
        }
    }

    for(int i=0;i<n;i++){
        scanf("%d",&u);
        scanf("%d",&k);
        int value;
        for(int j=0;j<k;j++){
            scanf("%d",&value);
            graph[u-1][value-1]=1;
        }
    }

    for(int i=0;i<n;i++){
        for(int j=0;j<n;j++){
            printf("%d",graph[i][j]);
            if(j!=n-1){
                printf(" ");
            }
        }
        if(i!=n-1) {
            printf("\n");
        }
    }

    return 0;
}