Go: package main

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

func main() {
	sc := bufio.NewScanner(os.Stdin)
	sc.Split(bufio.ScanWords)
	n, err := nextInt(sc)
	if err != nil {
		panic(err)
	}
	matrix := make([][]int, n)
	for i := 0; i < n; i++ {
		matrix[i] = make([]int, n)
		id, err := nextInt(sc)
		if err != nil {
			panic(err)
		}
		vNum, err := nextInt(sc)
		if err != nil {
			panic(err)
		}
		for j := 0; j < vNum; j++ {
			v, err := nextInt(sc)
			if err != nil {
				panic(err)
			}
			matrix[id-1][v-1] = 1
		}
	}
	for i := 0; i < n; i++ {
		printRow(matrix[i])
	}
}

func printRow(row []int) {
	xs := make([]string, len(row))
	for i := 0; i < len(row); i++ {
		xs[i] = strconv.Itoa(row[i])
	}
	fmt.Println(strings.Join(xs, " "))
}

func nextInt(sc *bufio.Scanner) (int, error) {
	sc.Scan()
	return strconv.Atoi(sc.Text())
}

C++: #include <bits/stdc++.h>
#define _GLIBCXX_DEBUG
#define rep(i, n) for (int i = 0; i < (n); ++i)
#define rrep(i, n) for (int i = 1; i < (n+1); ++i)
using namespace std;
using ll = long long;
const int INF = +100100100;
// typedef pair<int,int> P;


int main(){
    int n;
    cin >> n;
    vector<list<int>>  L(n);
    rep(i,n){
        int u, e;
        cin >> u>>e;
        rep(j,e){
            int v;cin>>v;--v;
            L[i].push_back(v);
        }
    }
    vector<vector<int>> M(n,vector<int>(n));
    rep(i,n){
        rep(j,n){
            list<int>::iterator it = find(L[i].begin(),L[i].end(),j);
            if(it!=L[i].end()){
                M[i][j]=1;
                L[i].erase(it);
            }
        }
    }
    rep(i,n){
        rep(j,n){
            if(j) cout << " "<<M[i][j];
            else cout << M[i][j];
        }
        cout << endl;
    }
    return 0;
}

C++: #include <iostream>

using namespace std;

int main(){
	int graph[100][100] = {0};
	int num;
	int hon;
	int eda;
	int ver;

	cin>>num;
	for(int i=0;i<num;i++){
		cin>>eda;
		cin>>hon;
		for(int j=0;j<hon;j++){
			cin>>ver;
			graph[eda][ver]++;
		}
	}
	for(int i=1;i<=num;i++){
		for(int j=1;j<=num;j++){
			cout<<graph[i][j];
			if(j==num-1)
				break;
			cout<<" ";
		}
		cout<<endl;
	}

	return 0;
}

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

int main() {
	int n,graph[100][100];
	cin >> n;

	for (int i = 0; i < n; i++) {
		int vertex,jisu;
		cin >> vertex>>jisu;
		for (int j = 0; j < jisu; j++) {
			int to;
			cin >> to;
			graph[vertex-1][to-1] = 1;
		}
	}

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

	return 0;
}

C++: /*
 * a.cc: 
 */

#include<cstdio>
#include<cstdlib>
#include<cstring>
#include<cmath>
#include<iostream>
#include<string>
#include<vector>
#include<map>
#include<set>
#include<stack>
#include<list>
#include<queue>
#include<deque>
#include<algorithm>
#include<numeric>
#include<utility>
#include<complex>
#include<functional>

using namespace std;

/* constant */

const int MAX_N = 100;

/* typedef */

/* global variables */

bool as[MAX_N][MAX_N];

/* subroutines */

/* main */

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

  for (int i = 0; i < n; i++) {
    int u, k;
    cin >> u >> k;
    u--;

    for (int j = 0; j < k; j++) {
      int v;
      cin >> v;
      v--;
      as[u][v] = true;
    }
  }

  for (int i = 0; i < n; i++) {
    for (int j = 0; j < n; j++) {
      if (j) putchar(' ');
      printf("%d", as[i][j]);
    }
    putchar('\n');
  }

  return 0;
}

C++: #include<iostream>
#include<cstdio>
using namespace std;
int main(){
    int n,u,k,v;
    scanf("%d",&n);
    int A[n+1][n+1];
    for(int i = 0; i <= n; i++){
        for(int j =0 ; j <= n; j++) A[i][j] = 0;
    }
    for(int i = 1; i <= n; i++){
        scanf("%d %d",&u,&k);
        for(int j = 0; j < k; j++){
            scanf("%d",&v);
            A[u][v] = 1;
        }
    }
    
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= n; j++){
            printf("%d",A[i][j]);
            if(j != n) printf(" ");
        }
        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 M[100][100];
    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>
#define rep(i, n) for(int i = 0; i < (n); i++)
using namespace std;
using ll = long long;

int main(){
	int n; cin >> n;
	int ga[n][n];
	memset(ga, 0, n*n*sizeof(int));
	rep(i, n){
		int u, k; cin >> u >> k;
		rep(j, k){
			int v; cin >> v;
			ga[u-1][v-1] = 1;
		}
	}

	rep(i, n)rep(j, n) cout << ga[i][j] << char((j == n-1)?'\n':' ');
	return 0;
}

C++: #include <iostream>
#include <algorithm>
#include <vector>
#define rep(i, n) for(int i = 0; i < (int)(n); i++)
#define repR(i, n) for(int i = (n) - 1; i > -1; i--)
#define rep1(i, n) for(int i = 1; i < (int)(n + 1); i++)
#define rep1R(i, n) for(int i = (n); i > 0; i--)
using namespace std;

int n;
int adj[110][110] = {};

int main() {
  cin >> n;
  rep(i, n) {
    int id, deg;
    cin >> id >> deg;
    --id;    // 0-indexedに直す
    rep(j, deg) {
      int v;
      cin >> v;
      --v;    // 0-indexedに直す
      ++adj[id][v];
    }
  }
  rep(i, n) {
    rep(j, n) {
      cout << adj[i][j] << ((j != n - 1)? " " : "\n");
    }
  }
  return 0;
}

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

using namespace std;

int G[100][100];

int main(){
  int V;

  cin >> V;

  rep(i,V){
    int u,k,v;

    cin >> u >> k;
    rep(j,k){
      cin >> v;
      G[u-1][v-1] = 1;
    }
  }

  rep(i,V){
    rep(j,V){
      if(j == V-1) cout << G[i][j] << endl;
      else cout << G[i][j] << " ";
    }
  }

  return 0;
}

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

int main(){
    int n;
    cin >> n;
    int u, k;
    vector<vector<bool>> graph(n, vector<bool>(n, false));
    for (int i = 0; i < n; i++){
        cin >> u >> k;
        u--;
        int v;
        for (int j = 0; j < k; j++){
            cin >> v;
            v--;
            graph[u][v] = true;
        }
    }
    for (int i = 0; i < n; i++){
        for (int j = 0; j < n; j++){
            cout << graph[i][j];
            if (j == n - 1)
                cout << endl;
            else
                cout << ' ';
        }
    }
    return 0;
}

C++: #include <bits/stdc++.h>
using namespace std;
#define MAX 100

int main() {
  int n;
  cin >> n;
  int a[MAX][MAX];
  int len[MAX];
  int a_list[n+1][n+1];

  for (int i = 0; i < n+1; i++) {
    for (int j = 0; j < n+1; j++) {
      a_list[i][j] = 0; //ゼロで初期化
    }
  }

  for (int i = 1; i < n+1; i++) {
    int index, k;
    cin >> index >> k;
    for (int j = 1; j < k+1; j++) {
      int tmp;
      cin >> tmp;
      a_list[i][tmp] = 1;
    }
  }

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

  return 0;
}