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>
using namespace std;
const int MAX_N = 100;

int main() {
  int a[MAX_N+1][MAX_N+1];
  int n; cin >> n;

  for (int i = 1; i <= n; i++)
    for (int j = 1; j <= n; j++)
      a[i][j] = 0;
      
    
  for (int i = 0; i < n; i++) {
    int u, k; cin >> u >> k;
    for (int j = 0; j < k; j++) {
      int t; cin >> t;
      a[u][t] = 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 <stdio.h>
#define N 102

int main(){

  int u,k,i,j,v,n;
  int a[N][N];
 
  scanf("%d",&n);

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

  return 0;

}

C++: #include<iostream>
using namespace std;
int main()
{
	int n, m, o, k, A[101][101] = {};
	cin >> n;
	for (int i = 0; i < n; i++)
	{
		cin >> o >> k;
		o--;
		for (int j = 0; j < k; j++)
		{
			cin >> m;
			m--;
			A[o][m] = 1;
		}
	}

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

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<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,m,l,i,j,p;
	cin >> n;
	int f[101][101];
	for ( i = 0; i < n; i++){
		cin >> m;
		cin >> p;
		for ( j = 0; j < p; j++){
			cin >> l;
			f[m-1][l-1] = 1;
		}
	}
	for ( i = 0; i < n; i++){
		for ( j = 0; j < n-1; j++){
			cout << f[i][j] << " ";
		}
		cout << f[i][n-1] << endl;
	}
}

C++: #include <iostream>
using namespace std;
static const int N = 100;

int main() {
    int M[N][N];
    int n, u, k, v;

    std::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++) {
        std::cin >> u >> k;
        u--;
        for (int j = 0; j < k; j++) {
            std::cin >> v;
            v--;
            M[u][v] = 1;
        }
    }

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

    return 0;
}

C++: #include <iostream>

using namespace std;
static const int N = 100;

int main(void)
{
	int M[N][N];
	int n, u, k, v;

	std::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)
	{
		std::cin >> u >> k;
		u--;

		for(int j = 0; j < k; ++j)
		{
			std::cin >> v;
		    v--;
			M[u][v] = 1;	
		}
	}

	for(int i = 0; i < n; ++i)
	{
		for(int j = 0; j < n; ++j)
		{
			if( j != 0 ) std::cout << " "; 
			std::cout << M[i][j];
		}
		
		std::cout << std::endl;
	}

	return 0;
}

C++: #include<iostream>

using namespace std;

int main(){
    int A[150][150];
    int n1,n2,a,b;
    cin >> n1;
    for (int i = 0; i < n1; i++){
        cin >> a;
        cin >> n2;
        for (int j = 0; j < n2; j++){
            cin >> b;
            A[a-1][b-1] = 1;
        }
    }
    for (int i = 0; i < n1; i++){
        for (int j = 0; j < n1; j++){
            cout << A[i][j];
            if (j == n1 - 1){
                cout << endl;
            }
            else {
                cout << " ";
            }
        }
    }
}

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

#pragma warning (disable:4996)

int main() {
	int a1[150][150] = { 0 };
	int a = 0,b=0,c=0,d=0;
	scanf("%d", &a);
	
	for (int i = 0; i < a; i++) {
		scanf("%d", &b);
		scanf("%d", &c);
		if (c > 0) {
			for (int j = 0; j < c; j++) {
				scanf("%d", &d);
				a1[b - 1][d - 1] = 1;
			}
		}
		if (c == 0) {
			for (int q = 2; q < a; q++) {
				a1[i][q] = 0;
			}
		}
	}
	for (int i = 0; i < a; i++) {
		for (int j = 0; j < a; j++) {
			printf("%d ", a1[i][j]);
		}
		printf("\n");
	}

	return 0;
}