Go: package main

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

func getScanner(fp *os.File) *bufio.Scanner {
	scanner := bufio.NewScanner(fp)
	scanner.Split(bufio.ScanWords)
	scanner.Buffer(make([]byte, 500001), 500000)
	return scanner
}

func getNextString(scanner *bufio.Scanner) string {
	scanner.Scan()
	return scanner.Text()
}

func getNextInt(scanner *bufio.Scanner) int {
	i, _ := strconv.Atoi(getNextString(scanner))
	return i
}

func main() {
	fp := os.Stdin
	if len(os.Args) > 1 {
		fp, _ = os.Open(os.Args[1])
	}

	scanner := getScanner(fp)
	writer := bufio.NewWriter(os.Stdout)

	n := getNextInt(scanner)
	g := make([][]int, n)

	for i := 0; i < n; i++ {
		g[i] = make([]int, n)
	}

	for i := 0; i < n; i++ {
		u := getNextInt(scanner)
		k := getNextInt(scanner)
		u--
		for ii := 0; ii < k; ii++ {
			v := getNextInt(scanner)
			v--
			g[u][v] = 1
		}
		fmt.Fprintln(writer, joinint(g[u], " "))
	}

	writer.Flush()
}

func joinint(a []int, sep string) string {
	n := len(a)
	ss := make([]string, n)
	for i := 0; i < n; i++ {
		ss[i] = fmt.Sprintf("%d", a[i])
	}
	return strings.Join(ss, sep)
}

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

int main()
{
	int n, k, u, v;
	cin >> n;
	// N * N matrix filled with 0
	vector< vector<int> > mat(n, vector<int>(n, 0));

	for(int i=0; i<n; i++){
		cin >> u >> k;
		// adjust 0 origen
		u--;
		for(int j=0; j<k; j++){
			cin >> v;
			//cout << "vertex: " << v << '\n';
			// adjust 0 origen
			v--;
			mat[u][v] += 1;
		}
		//cout << '\n';
	}

	for(int i=0; i<n; i++){
		for(int j=0; j<n; j++){
			printf("%d ", mat[i][j]);
		}
		cout << endl;
	}
	return 0;
}

C++: #include<bits/stdc++.h>
using namespace std;
typedef long long ll;
#define loop(i,a,b) for(i=a;i<b;i++)
#define rloop(i,a,b) for(i=a;i>=b;i--)
#define vi vector<int>
#define vl vector<ll>
#define vii vector< vector<int> >
#define vll vector< vector<ll> >
#define vs vector<string>
const int inf=1000000001;
const ll INF=1e16;
#define MOD 1000000007
#define mod 1000000009
#define pi 3.14159265358979323846



int main(){
	int n,i,j,k,u,v;
	cin>>n;
	vii a(n,vi(n,0));
	loop(i,0,n){
		cin>>u>>k;
		loop(j,0,k){
			cin>>v;
			a[u-1][v-1]=1;
		}
	}
	loop(i,0,n){
		loop(j,0,n){
			cout<<a[i][j];
			if(j!=n-1){
				cout<<" ";
			}else{
				cout<<endl;
			}
		}
	}
}

C++: #include <iostream>
#define rep(i, n) for(int i = 0; i < (n); ++i)
using namespace std;

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

  int n; cin >> n;
  int M[105][105] = {};

  rep(i, n) {
    int u, k; cin >> u >> k;
    // 0-origin
    --u;
    rep(j, k) {
      int v; cin >> v;
      // 0-origin
      --v;
      M[u][v] = 1;
    }
  }
  rep(i, n) rep(j, n) {
    cout << M[i][j] << (j==n-1 ? '\n' : ' ');
  }
}

C++: //16D8103012G 三品海渡
#include<iostream>
#include<vector>
using namespace std;
int main() {
  int n;
  cin >> n;
  vector<vector<int>> ln(n, vector<int>(n+1, 0));
  vector<vector<int>> m(n,vector<int>(n,0));
  vector<int> rem(n, 0);
  for (int i = 0; i < n; i++)
    {
      cin >> ln[i][0];
      cin >> ln[i][1];
      for (int j = 2; j < ln[i][1]+2; j++)
	{
	  cin >> ln[i][j];
	}
    }
  for (int i = 0; i < n; i++)
    {
      for (int j = 2; j < n; j++)
	{
	  if (ln[i][j] != 0 && m[j][i]==0)
	    {
	      m[i][ln[i][j]-1] = 1;
	    }
	}
    }
  for (int i = 0; i < n; i++)
    {
      for (int j = 0; j < n; j++)
	{
	  cout << m[i][j] << " ";
	}
      cout << endl;
    }
  return 0;
}

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

int main(){
        int n,m,l;
        cin >> n;
        int f[10][10] = {};
        for (int i = 0; i < n; i++){
                cin >> m;
                for (int j = 0; i < m; j++){
                        cin >> l ;
                        f[m][l] = 1;
                }
        }
        for (int i = 0; i < n; i++){
                for (int j = 0; j < n-1; j++){
                        cout << f[i][j] << " ";
                }
                cout << f[i][n] << endl;
        }
}

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

int x[30000][30000],n,q,r,b;

int main() {
	cin >> n;
	for (int i = 1; i <= n; i++) {
		cin >> q >> r;
		for (int j = 0; j < r; j++) {
			cin >> b;
			x[i][b] == true;
		}
	}
	for (int i = 1; i <= n; i++) {
		for (int j = 0; j < n; j++) {
			if (j) { cout << ' '; }
			cout << x[i][j+1];
		}
		cout << endl;
	}
	return 0;
}

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

int n;
int ad_list[101][101];

void print(){
    for(int i=1;i<n+1;i++){
        for(int j=1;j<n+1;j++){
            cout << ad_list[i][j];
            if(j==n)cout << "\n";
            else cout << " ";
        }
    }
}

int main(){
    cin  >> n;
    for(int i=1;i<n+1; i++){
        for(int j=1; j<n+1; j++){
            ad_list[i][j]=0;
        }
    }
    int v,k, in;
    for(int i=1; i<n+1; i++){
        cin >> v >> k;
        for (int j=0;j<k;j++){
            cin >> in;
            ad_list[v][in]=1;
        }
    }
    print();
}

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<bits/stdc++.h>
using namespace std;
const int MAXN = 100+7;
struct node{
    int id;
    struct node* next;
};
struct node* graph[MAXN];
int matrix[MAXN][MAXN];
int main() {
    int n;
    scanf("%d", &n);
    int i;
    for(i = 1; i <= n; i++){
        graph[i] = (node*)malloc(sizeof(node));
        graph[i]->next = NULL;
    }
    memset(matrix, 0, sizeof(matrix));
    for(i = 0; i < n; i++){
        int pnum;
        int k;
        scanf("%d", &pnum);
        scanf("%d", &k);

        int j;
        for(j = 0; j < k; j++){
            int r;
            scanf("%d", &r);
            node* newp = (node*)malloc(sizeof(node));
            newp->id = r;
            newp->next = NULL;
            node* p = graph[pnum];
            while(p->next!=NULL){
                p = p ->next;
            }
            p->next = newp;
        }
    }
    for(i = 1; i <= n; i++){
        struct node* p = graph[i]->next;
        while(p!=NULL){
            matrix[i][p->id] = 1;
            p = p->next;
        }
    }
    for(i = 1; i <= n; i++){
        int j;
        for(j = 1; j <= n; j++){
            if(j!=1) printf(" ");
            printf("%d", matrix[i][j]);
        }
        printf("\n");
    }

    return 0;
}

C++: #include<iostream>
#include<vector>
#include<algorithm>
#include<cstdio>
#include<cstdlib>
#include<string>
#include<sstream>
#include<cmath>
#include<numeric>
#include<map>
#include<stack>
#include<queue>
using namespace std;
int inf = 1000000000;


int main(void) {

  int n;
  cin >> n;
  vector< vector<int> > g(n, vector<int>(n));
  int u, k;
  for(int i=0; i<n; i++){
    cin >> u >> k;
    int v;
    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 != n-1 ) cout << g[i][j] << " ";
      else cout << g[i][j] << endl;
    }
  }

  return 0;
}

// EOF