Go: package main

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

func main() {
	scn := bufio.NewScanner(os.Stdin)
	scn.Split(bufio.ScanWords)
	nextInt := func() int { scn.Scan(); r, _ := strconv.Atoi(scn.Text()); return r }
	w := bufio.NewWriter(os.Stdout)

	n := nextInt()
	v := make([][]int, n)
	for i := 0; i < n; i++ {
		u := nextInt()
		k := nextInt()
		for j := 0; j < k; j++ {
			v[u-1] = append(v[u-1], nextInt())
		}
	}

	for _, vvs := range v {
		for j := 1; j <= n; j++ {
			if j > 1 {
				fmt.Fprint(w, " ")
			}
			p := sort.SearchInts(vvs, j)
			if p < len(vvs) && vvs[p] == j {
				fmt.Fprint(w, 1)
			} else {
				fmt.Fprint(w, 0)
			}
		}
		fmt.Fprintln(w)
	}

	w.Flush()
}

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;
}

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

class Adjl{
private:
	int u;
	int k;
	int *v;
public:
	Adjl(int u, int k);
	void setV(int vk);
	void printAdjm(int n);
};

Adjl::Adjl(int u, int k)
{
	this->u = u;
	this->k = 0;
	v = new int[k];
}

void Adjl::setV(int vk)
{
	v[k] = vk;
	k++;
}

void Adjl::printAdjm(int n)
{
	int j = 0;
	for (int i = 1; i <= n; i++) {
		if (j < k && v[j] == i) {
			cout << "1";
			j++;
		}
		else {
			cout << "0";
		}
		if (i < n) cout << " ";
		else cout << endl;
	}
}

int main(void)
{
	int n;
	cin >> n;
	for (int i = 0; i < n; i++) {
		int u, k;
		cin >> u >> k;
		Adjl *adjl = new Adjl(u, k);
		for (int j = 0; j < k; j++) {
			int vk;
			cin >> vk;
			adjl->setV(vk);
		}
		adjl->printAdjm(n);
		delete adjl;
	}

	return 0;
}

C++: #include <iostream>
using namespace std;
static const int N=101;

int main(void){
    int M[N][N]={0};
    int n;
    cin >> 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;
            M[u][v]=1;
        }
    }
    
    for(int i=1;i<=n;i++){
        for(int j=1;j<=n;j++){
            if(j!=1) cout << " ";
            cout << M[i][j];
        }
        cout << endl;
    }
    return 0;
}

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

int main() {
	int n,graph[100][100];
	for (int i = 0; i < 100; i++) {
		for (int j = 0; j < 100; j++) {
			graph[i][j] = 0;
		}
	}
	cin >> n;

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

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

	return 0;
}

C++: #include <iostream>
#include <cstdio>
#include <string>
#include <algorithm>
#include <utility>
#include <cmath>
#include <vector>
#include <queue>
#include <set>
#include <map>
#define rep(i, n) for(int i = 0; i < n; i++)
using namespace std;
typedef long long ll;
const ll mod = 1000000007;

int graph[100][100];

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

    rep(i, n) {
        int u, k;  
        cin >> u >> k;
        u--;
        rep(j, k) {
            int v;
            cin >> v;
            v--;
            graph[u][v] = 1;
        }
    }

    rep(i, n) {
        rep(j, n) {
            if(j) {
                cout << " ";
            }
            cout << graph[i][j];
        }
        cout << "\n";
    }

    return 0;
}

C++: #include<bits/stdc++.h>
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,i,j,u,k;
    cin >> n;
    int Adj[n][n];
    for(i=0;i<n;i++)
        for(j=0;j<n;j++)
            Adj[i][j]=0;
    for(i=0;i<n;i++)
    {
        cin >> u >> k;
        int v[k];
        for(j=0;j<k;j++)
        {
            cin >> v[j];
            Adj[u-1][v[j]-1]=1;
        }
    }
    for(i=0;i<n;i++)
    {
        for(j=0;j<n-1;j++)
        {
            cout << Adj[i][j] << ' ';
        }
        cout << Adj[i][n-1] << endl;
    }
    return 0;
}