Go: package main

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

//util
var sc = bufio.NewScanner(os.Stdin)

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

func nextInt() int {
	sc.Scan()
	i, e := strconv.Atoi(sc.Text())
	if e != nil {
		panic(e)
	}
	return i
}

func printList(list []int) {
	n := len(list)
	buf := bufio.NewWriter(os.Stdout)
	for _, v := range list[0 : n-1] {
		buf.Write([]byte(fmt.Sprintf("%d ", v)))
	}
	buf.Write([]byte(fmt.Sprintf("%d\n", list[n-1])))
	buf.Flush()
}

func max(a, b int) int {
	if a > b {
		return a
	} else {
		return b
	}
}

func min(a, b int) int {
	if a > b {
		return b
	} else {
		return a
	}
}

//solve

const MAX = 100

var n int
var A [MAX + 1][MAX + 1]int

func main() {
	sc.Split(bufio.ScanWords)
	n = nextInt()
	for i := 0; i < n; i++ {
		u, k := nextInt(), nextInt()
		A[u-1][u-1] = 0

		//fmt.Println(u, k)
		if k > 0 {
			for j := 0; j < k; j++ {

				v := nextInt()
				A[u-1][v-1] = 1

			}
		}

	}

	for i := 0; i < n; i++ {
		printList(A[i][0:n])
	}

}

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;
}

C++: #include<iostream>
using namespace std;
 
int main() {
	int Adj[100][100];
	int n, u, k, v;
	cin >> n;

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

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

bool mat[101][101] = {{false}};

int main()
{
    ios::sync_with_stdio(false);
    int n;
    cin >> n;
    for (int m = 0; m != n; ++m){
        int i = 0, k = 0;
        cin >> i;
        cin >> k;
        while (k--){
            int j = 0;
            cin >> j;
            mat[i - 1][j - 1] = true;
        }
    }
    
    for (int i = 0; i != n; ++i){
        cout << mat[i][0];
        for (int j = 1; j != n; ++j){
            cout << ' ' << mat[i][j];
        }
        cout << endl;
    }
    return 0;
}

C++: #include <iostream>
using namespace std;
int main(){
  int n,u[100],k[100]={},v[100][100];
  cin >> n;
  for(int i=0; i<n; i++){
    cin >> u[i];
    int x;
    cin >> x;
    k[u[i]-1]+=x;

    for(int j=0; j<k[i]; j++)
      cin >> v[i][j];
  }

  for(int i=0; i<n; i++){
    int count=0;
    for(int j=0; j<4; j++){
      if(v[i][count]==j+1){
        cout << 1;
        count++;
      }

      else
        cout << 0;

      if(j!=3)
        cout << " ";
      }
    }
  }