Go: package main
import (
	"fmt"
	"bufio"
	"os"
	"bytes"
	"strconv"
	"strings"
)

func nextInt(scanner *bufio.Scanner) int {
	scanner.Scan()
	num , _ :=  strconv.Atoi(scanner.Text())
	return num
}


func main() {
	scanner := bufio.NewScanner(os.Stdin)
	scanner.Split(bufio.ScanWords)

	N := nextInt(scanner)
	var A [][]int = make([][]int, N)
	for i:=0; i<N; i++ {
		A[i] = make([]int, N)
	}
	for i:=0; i<N; i++{
		idx := nextInt(scanner)
		cnt := nextInt(scanner)
		for j:=0; j<cnt; j++ {
			node := nextInt(scanner)
			A[idx-1][node-1] = 1
		}
	}
	var outBuffer bytes.Buffer
	for i:=0; i<N; i++ {
		outBuffer.WriteString(strings.TrimRight(fmt.Sprintf("%v",A[i])[1:], "]") + "\n")
	}
	fmt.Printf("%s", outBuffer.String())
}

C++: #include <iostream>
using namespace std;
int main(){
	int N;
	cin>>N;
	int u,k;
	int v[k];
	int G[N][N];
	for(int i=0;i<N;++i)
		for(int j=0;j<N;++j)
			G[i][j]=0; //?????????
	for(int i=0;i<N;++i){
		cin>>u>>k;
		for(int j=0;j<k;++j){
			cin>>v[j];
			G[v[j]-1][u-1]=1;  //??£??\????????????ID??§??????"u"???1???????§????????????§?????????????????????u-1??¨?????????
		}	
	}
	for(int i=0;i<N;++i){
		for(int j=0;j<N;++j){
			cout <<G[j][i]<< " ";
		}
		cout<<endl;
	}
}

C++: #include <stdio.h>
#include <string.h>
#define N 110
int m[N][N];
int n;
int main(){
    for(int i = 0 ; i <= n; i++) for(int j = 0; j <= n; j++) m[i][j] = 0;
    scanf("%d", &n);
    for(int p = 0; p < n; p++){
        int node, k;
        scanf("%d %d", &node, &k);
        for(int i = 0; i < k; i++){
            int b;
            scanf("%d", &b);
            m[node][b] = 1;
        }
    }
    for(int i = 1; i <= n; i++){
        for(int j = 1; j <= n; j++){
            if(j != n) printf("%d ", m[i][j]);
            else printf("%d\n", m[i][j]);
        }
    }
    return 0;
}

C++: #include <iostream>

using namespace std;

int p[100+10][100+10];
int n,a,b,c;

int main(){
	cin >> n;
	for (int i=1; i<=n; i++){
		cin >> a >> b;
		for (int j=1; j<=b; j++){
			cin >> c;
			p[a][c] = 1;
		}
	}
	
	for (int i=1; i<=n; i++){
		for (int j=1; j<=n; j++){
			if (j>1) {cout << ' ';}
			cout << p[i][j];
		}
		cout << endl;
	}
}

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

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

  int n;
  cin >> n;

  int G[101][101];
  int u, v, k;

  for (int i = 1; i <= n; i++) {
    for (int j = 1; j <= n; j++) {
      G[i][j] = 0;
    }
  }

  for (int i = 0; i < n; i++) {
    cin >> u >> k;
    for (int j = 0; j < k; j++) {
      cin >> v;
      G[u][v] = 1;
    }
  }

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

  return 0;
}

C++: #include <stdio.h>

int main() {
    int n, m, tmp;
    
    scanf("%d", &n);
    
    int M[100][100];
    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++) {
        scanf("%d", &m);
        for (int j=0; j<,; j++) {
            scanf("%d", &tmp);
            M[i][tmp-1] = 1;
        }
    }
    
    for(int i=0; i<n; i++) {
        for(int j=0; j<n; j++) {
            if(j) printf(" ");
            printf("%d", M[i][j]);
        }
        printf("\n");
    }
    
    return 0;
}

C++: #include<iostream>
#include<math.h>
#include<string>
#include<vector>
#include<algorithm>
#include<queue>
using namespace std;
#define INF 1<<20

struct edge{
	int to;
	int cost;
	edge() {};
	edge(int a, int b) {
		to = a;
		cost = b;
	}
};

struct Node {
	int pos;
	int cost;
	Node() {};
	Node(int a, int b) {
		pos = a;
		cost = b;
	}
	bool operator <(const Node& rhs) const {
		return cost > rhs.cost;
	}
};

void dijkistra(int st, int TO,int V,vector<vector<edge> > graph) {
	priority_queue<Node> q;
	vector<int> d(V);
	for (int i = 0;i < V;i++) {
		d[i] = INF;
	}
	d[st] = 0;
	q.push(Node(st, 0));
	while (!q.empty()) {
		Node s = q.top(); q.pop();
		int pos = s.pos;
		for (int i = 0;i < graph[pos].size();i++) {
			int to = graph[pos][i].to;
			int cost = graph[pos][i].cost;
			if (d[pos] + cost < d[to]) {
				d[to] = d[pos] + cost;
				q.push(Node(to, d[to]));
			}

		}
	}
	cout << d[TO] << endl;
}
int partition(int A[],int p, int r) {
	int x = A[r];
	int i = p - 1;
	for (int j = p;j < r;j++) {
		if (x >= A[j]) {
			i = i + 1;
			swap(A[i], A[j]);
		}
	}
		swap(A[i + 1], A[r]);
		return i + 1;
}
void quicksort(int A[], int p, int r) {
	if (p < r) {
		int q = partition(A, p, r);
		quicksort(A, p, q-1);
		quicksort(A, q + 1, r);
	}
}

int getNumberOfCoin(int C[],int n,int m) {
	int T[50000];
	for (int j = 0;j <= n;j++) {
		T[j] = INF;
	}
	T[0] = 0;
	for (int i = 0;i < m;i++) {
		for (int j = 0;j <= n;j++) {
			if (j - C[i] >=0  ) {
				T[j] = min(T[j], T[j - C[i]] + 1);
			}
		}
	}
	return T[n];
}
int knapsack(int w, int n,int* v,int* ww) {
	int W[101][10001];
		for (int j = 0;j <= w;j++) {
			W[0][j] = 0;
		}
	for (int i = 0;i < n;i++) {
		for (int k = 0;k < n;k++){
			for (int j = 0;j <= w;j++) {
				if (j - ww[k] < 0) {
					W[i + 1][j] = W[i][j];
				}
				if (j - ww[i] >= 0) {
					W[i + 1][j] = max(W[i][j], W[i][j - ww[k]] + v[k]);

				}
			}
		}
	}
	return W[n][w];
}
int main() {
	int point;
	cin >> point;
	vector<queue<int> >lis(point);
	for (int i = 0;i < point;i++) {
		int V,edges;
		cin >> V>>edges;
		for (int j = 0;j < edges;j++) {
			int h;
			cin >> h;
			lis[i].push(h-1);
		}
	}

	vector<vector<int> > v(point, vector<int>(point, 0));
	for (int i = 0;i < point;i++) {
		while (!lis[i].empty()) {
			int j = lis[i].front();
			lis[i].pop();
			v[i][j] = 1;
		}
	}
	for (int i = 0;i < point;i++) {
		for (int j = 0;j < point;j++) {
			if (i == point - 1 && j == point - 1) {
				cout << v[i][j];
			}
			else
			cout << v[i][j]<<" ";
		}
		cout << endl;
	}

	return 0;
	
}

int isPrime(int x) {
	if (x <= 1) return false;
	if (x>2 && x % 2 == 0) return false;
	for (int i = 2;i <= sqrt(x);i++) {
		if (x%i == 0) {
			return false;
		}
	}
	if (x == 2) return true;
	return true;
}

C++: #include <iostream>
#define NUM 100
using namespace std;

int p[NUM];
int result[NUM][NUM];

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

    for (int i = 0; i < n; i++)
    {
        int u, k;
        cin >> u >> k;
        for (int j = 0; j < k; j++)
        {
            int tmp;
            cin >> tmp;
            result[u - 1][tmp - 1] = 1;
        }
    }

    for (int i = 0; i < n; i++)
    {
        for (int j = 0; j < n; j++)
        {
            if (j)
                cout << ' ';
            cout << result[i][j];
        }
        cout << endl;
    }

    return 0;
}

C++: #include <stdio.h>
int A[100][100];
int main(void){
  int k,j,n,u,v,uv,V;
  scanf("%d",&V);
  for(n=0;n<V;n++){
    scanf("%d%d",&u,&k);
    for(j=0;j<k;j++){
      scanf("%d",&v);
      A[u-1][v-1]=1;
    }
  }
  for(v=0;v<V;v++){
    
    for(uv=0;uv<V;uv++){
      if(uv!=0){
	printf(" ");
      }
      printf("%d",A[v][uv]);
    }
    printf("\n");
  }
  
  return 0;
}

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

int A[101][101];

int main() {
	int n;
	cin >> n;
	for (int t = 0; t < n; t++) {
		int i, k;
		cin >> i >> k;
		for (int s = 0; s < k; s++) {
			int j;
			cin >> j;
			A[i][j] = 1;
		}
	}
	for (int i = 1; i < n + 1; i++) {
		for (int j = 1; j < n + 1; j++) {
			if (j != 1)cout << ' ';
			cout << A[i][j];
		}
		cout << endl;
	}
	return 0;
}